CN210938100U

CN210938100U - Zero-suspension sliding seat structure of horizontal machine tool

Info

Publication number: CN210938100U
Application number: CN201921492492.5U
Authority: CN
Inventors: 郭雷; 王小平
Original assignee: Beijing Jingdiao Group Co Ltd
Current assignee: Beijing Jingdiao Group Co Ltd
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-07-07
Anticipated expiration: 2029-09-09

Abstract

The utility model relates to a zero slide structure that dangles of horizontal lathe aims at the overall arrangement form through optimizing the X axle guide rail, realizes that the barycenter of X axle moving part supports, eliminates because the X axle moving part dangles and the moment of toppling that produces the stand. The X-axis sliding device comprises an L-shaped stand column, a sliding seat, X-axis vertical face guide rails, X-axis plane guide rails, an X-axis sliding block, an X driving device, a spindle box and a Y-axis sliding device, wherein the L-shaped stand column is fixed on a machine tool body and comprises a vertical end and a horizontal end, the inner side face of the vertical end is provided with the two X-axis vertical face guide rails, and the upper top face of the horizontal end is provided with the X-axis plane guide rails; the sliding seat acts on the X-axis vertical guide rail and the X-axis plane guide rail through X-axis sliding blocks on the rear side surface and the top of the sliding seat respectively, and can horizontally move along an X axis under the action of an X-axis driving device; the headstock passes through Y axle slider and installs on the slide, can follow the slide along X axle horizontal migration together on the one hand, on the other hand can reciprocate along the Y axle.

Description

Zero-suspension sliding seat structure of horizontal machine tool

Technical Field

The utility model belongs to the machining field, in particular to zero slide structure that dangles of horizontal lathe.

Background

With the development of equipment manufacturing industry in China, the precision horizontal machining center is more and more favored by the market. The field of horizontal machining centers mainly has two typical structures, one is a movable column structure, and the other is a frame structure, namely a box-in-box structure.

In order to prevent the vertical column from generating displacement and deformation under the action of cutting force, the vertical column is generally high in mass, and the heavy vertical column cannot realize high speed and acceleration, so that the overall dynamic characteristic of the machine tool is poor. The novel concept of the column ladder structure design reduces the weight of the column, enhances the capability of resisting Z-direction cutting force, but has the problems that the main shaft cannot be too long, otherwise, the Y-axis moves to the lower part to interfere with the column, and certain requirements are also met for the height of the workbench, so that higher rigidity cannot be achieved.

The box-type horizontal machining center in the box adopts a structural form that the upright post is fixed and the slide seat drives the main spindle box to move, improves the static rigidity and the dynamic rigidity of the upright post, lightens the weight of a moving part, has the advantages of small thermal deformation, high rigidity, good dynamic characteristic and the like, can meet the high-speed and high-precision machining requirements of a numerical control machine tool, and therefore becomes a mainstream structure of the horizontal machine tool.

As shown in fig. 1, in the existing box-in-box type horizontal machine tool, the driving support structures of the slide are all disposed on the rear side of the slide, and are equivalent to that the cantilever of the X-axis moving part is mounted on the column, and the gravity of the driving support structures can generate an overturning moment on the column, so that the column is deformed, in addition, the spindle box moves up and down on the slide, the cutting force of the tool can also generate an overturning moment on the column, and the overturning moment is a variable, so that the deformation of the column is uncontrollable, and the improvement of the precision and the dynamic performance of the machine tool is affected.

Disclosure of Invention

An object of the utility model is to overcome prior art not enough, provide a zero slide structure that dangles of horizontal lathe, eliminate because X axle moving part dangles and to the moment of overturning that the stand produced, reduce the stand deflection, promote the quiet of stand, move rigidity.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme: a zero-overhang sliding seat structure of a horizontal machine tool comprises an L-shaped stand column, a sliding seat, an X-axis vertical face guide rail, an X-axis plane guide rail, an X-axis sliding block, an X-axis driving device, a spindle box and a Y-axis sliding device, wherein the L-shaped stand column is fixed on a machine tool body and comprises a vertical end and a horizontal end, two X-axis vertical face guide rails are installed on the inner side face of the vertical end, and an X-axis plane guide rail is installed on the upper top face of the horizontal end; the sliding seat acts on the X-axis vertical guide rail and the X-axis plane guide rail through X-axis sliding blocks on the rear side surface and the top of the sliding seat respectively, and can horizontally move along an X axis under the action of an X-axis driving device; the headstock passes through Y axle slider and installs on the slide, can follow the slide along X axle horizontal migration together on the one hand, on the other hand can reciprocate along the Y axle.

According to the zero-suspension sliding seat structure of the horizontal machine tool, the sliding seat, the X-axis sliding block, the spindle box and the Y-axis sliding device form an X-axis moving part, and the X-axis plane guide rail is located right below the mass center of the X-axis moving part.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses a design of L type stand through the overall arrangement form of optimizing the X axle guide rail, has realized that the barycenter of X axle moving part supports, has eliminated because the X axle moving part dangles and to the moment of overturning that the stand produced, has reduced the deflection of stand greatly, has promoted the quiet of stand, has moved rigidity to and the dynamic characteristic of X axle.

Drawings

Fig. 1 is a schematic view of a slide carriage supporting structure of a prior art horizontal machine tool.

Fig. 2 is a schematic structural diagram of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 2, the utility model discloses a zero slide structure that dangles of horizontal lathe comprises L type stand 1, slide 2, X axle facade guide rail 3, X axle plane guide rail 4, X axle slider 5, X drive arrangement 6, headstock 7 and Y axle slider 8, and wherein L type stand 1, X axle facade guide rail 3, X axle plane guide rail 4, X drive arrangement 6 constitute the fixed part, and slide 2, X axle slider 5, headstock 7 and Y axle slider 8 then constitute X axle moving part.

The L-shaped upright post 1 is fixed on a machine tool body and consists of a vertical end and a horizontal end, two X-axis vertical surface guide rails 3 are installed on the inner side surface of the vertical end, and an X-axis plane guide rail 4 is installed on the upper top surface of the horizontal end. The sliding base 2 acts on the X-axis vertical guide rail 3 and the X-axis plane guide rail 4 through the X-axis sliding blocks 5 on the back side surface and the top of the sliding base respectively, and can horizontally move along the X axis under the action of the X-axis driving device 6. The headstock 7 contains a spindle, and the headstock 7 is mounted on the slide carriage 2 through a Y-axis slide device 8, and can move horizontally along the X-axis together with the slide carriage 2, and can move up and down along the Y-axis. In order to ensure zero suspension of the X-axis moving part, the X-axis plane guide rail 4 is arranged right below the integral mass center of the X-axis moving part.

The utility model discloses a design of L type stand has optimized the overall arrangement of X axle guide rail, supports through setting up X axle plane guide rail bottom X axle moving part, can eliminate because the X axle moving part dangles and the adverse effect that brings to X axle plane guide rail's support position can be confirmed according to X axle moving part's barycenter, realizes that X axle moving part's zero dangles, effectively eliminates because the X axle moving part dangles and to the moment that topples that the stand produced, the deflection of the stand that reduces greatly.

Although the present invention has been described in detail, the present invention is not limited thereto, and those skilled in the art can make various modifications according to the principle of the present invention. Therefore, modifications made in accordance with the principles of the present invention should be understood to fall within the scope of the present invention.

Claims

1. A zero-overhang sliding seat structure of a horizontal machine tool is characterized by comprising an L-shaped stand column, a sliding seat, an X-axis vertical face guide rail, an X-axis plane guide rail, an X-axis sliding block, an X-axis driving device, a main spindle box and a Y-axis sliding device, wherein the L-shaped stand column is fixed on a machine tool body and comprises a vertical end and a horizontal end, two X-axis vertical face guide rails are installed on the inner side face of the vertical end, and an X-axis plane guide rail is installed on the upper top face of the horizontal end; the sliding seat acts on the X-axis vertical guide rail and the X-axis plane guide rail through X-axis sliding blocks on the rear side surface and the top of the sliding seat respectively, and can horizontally move along an X axis under the action of an X-axis driving device; the headstock passes through Y axle slider and installs on the slide, can follow the slide along X axle horizontal migration together on the one hand, on the other hand can reciprocate along the Y axle.

2. The zero overhang slide structure of a horizontal machine tool according to claim 1, wherein said slide, X-axis slide, headstock and Y-axis slide comprise an X-axis moving unit, and the X-axis plane guide rail is located directly below the center of mass of the X-axis moving unit.