CN201659427U

CN201659427U - Long-length work bench

Info

Publication number: CN201659427U
Application number: CN2009202711905U
Authority: CN
Inventors: 郑元聪; 陈锦锋; 陈卫财
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-12-03
Filing date: 2009-12-03
Publication date: 2010-12-01
Anticipated expiration: 2019-12-03

Abstract

A long-length work bench comprises a work bench, two sliders respectively fixedly connected with two ends of the lower end surface of the work bench, and two supports mounted on a machine tool frame, wherein two parallel slide bars and one screw rod are mounted on the two supports; the two sliders are mounted on the two slide bars through linear bearings; a screw rod nut in fit connection with the screw rod is also mounted on one of the sliders; the work bench can be driven to slide on the two slide bars by driving the screw rod to rotate; the lower ends of the two sliders are fixedly connected with a rolling slide rail parallel to the screw rod; and a floating support assembly is arranged below the rolling slide rail. When the downward bending deformation of the slide bars occurs, the floating support assembly is butted against the rolling slide rail to resist the bending deformation of the slide bars, thereby ensuring the part processing accuracy.

Description

A kind of long span workbench

Technical field:

The utility model relates to a kind of machine tool component, particularly a kind of long span workbench.

Background technology:

In the prior art, workbench on the light-duty lathe (as the panel saw gear grinding machines) slidably is installed on two slide bars by linear bearing, the length of slide bar determines the span (in the distance of slide bar top offset) between two supportings and is directly proportional with it, the nominal length of the span of workbench decision lathe institute energy processing parts and be directly proportional with it, conversely, if the long part of processing, just must strengthen the span of workbench, and then the length that needs to prolong slide bar, but, after slide bar is lengthened out, its support force to workbench has just been weakened, under the effect of workbench gravity, the slide bar mid portion is easy to generate downward flexural deformation, and then has influenced the machining accuracy to part.

The utility model content:

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of long span workbench that can stop slide bar to occur bending and deformation is provided.

A kind of long span workbench that provides according to the utility model, comprise workbench, be fixed in two slide blocks and two bearings that are installed on the lathe frame at two ends, workbench lower surface respectively, two slide bars and the rhizoid thick stick that be arranged in parallel are installed on two bearings, wherein, two slide bars are on the same horizontal plane, two slide blocks all slidably are installed on two slide bars by linear bearing, one feed screw nut that is connected with leading screw wherein also is installed on the slide block, by driving the leading screw rotation, can drive workbench slides on two slide bars, also be connected with a rolling slide rail that be arranged in parallel with leading screw between the lower end of two described slide blocks, rolling slide rail downside is provided with a unsteady supporting component, when downward flexural deformation took place slide bar, float supporting component and rolling slide rail were replaced.

The utility model also has following attached technical characterictic:

Described unsteady supporting component comprises base, cushion block, roller support and roller float, wherein, roller support is fixed in the cushion block upper end of floating, and this roller support is made up of two vertically disposed back-up blocks and the bearing pin that is installed between two back-up blocks, and roller is installed on the bearing pin by bearing is rotating.

Described base is welded on described lathe frame upper surface, described unsteady cushion block is installed in the base upper surface by the plurality of fixed screw,, also have some screwed holes on the cushion block that floats, adjustment screw all is installed in each screwed hole, and the lower surface of adjustment screw and base upper surface are replaced.

A kind of long span workbench that provides according to the utility model with respect to the advantage of prior art is:

In the utility model, the affixed one rolling slide rail that be arranged in parallel with leading screw between the lower end of two slide blocks, rolling slide rail downside is provided with a unsteady supporting component, when downward flexural deformation takes place in slide bar, unsteady supporting component and rolling slide rail are replaced, stop the flexural deformation of slide bar, and then guarantee the machining accuracy of part.

Description of drawings:

Introduce the utility model in detail below in conjunction with the drawings and specific embodiments.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the sectional structure schematic diagram (being exaggerated) of A-A among Fig. 1.

The specific embodiment:

With reference to Fig. 1, Fig. 2, a kind of long span workbench that provides according to the utility model, comprise workbench 1, be fixed in two slide blocks 2 and two bearings 4 that are installed on the lathe frame 3 at two ends, workbench 1 lower surface respectively, two slide bars 5 and the rhizoid thick stick 6 that be arranged in parallel are installed on two bearings 4, wherein, two slide bars 5 are on the same horizontal plane, two slide blocks 2 all slidably are installed on two slide bars 5 by linear bearing 21, one feed screw nut 22 that is connected with leading screw 6 wherein also is installed on the slide block 2, by driving leading screw 6 rotations, can drive workbench 1 slides on two slide bars 5, also be connected with a rolling slide rail 7 that be arranged in parallel with leading screw 6 between the lower end of two slide blocks 2, rolling slide rail 7 downsides are provided with a unsteady supporting component 8, when downward flexural deformation takes place in slide bar 5, the supporting component 8 that floats is replaced with rolling slide rail 7, stops the continuation flexural deformation of slide bar 5, and then guarantees the machining accuracy of part.

The supporting component 8 that floats comprises base 81, cushion block 82, roller support 83 and roller 88 float, in, roller support 83 is fixed in cushion block 82 upper ends of floating, this roller support 83 is made up of two vertically disposed back-up blocks 84 and the bearing pin 85 that is installed between two back-up blocks 84, roller 88 is by bearing 89 rotating being installed on the bearing pin 85, bearing pin 85 adopts wear-resisting steel to make, when downward flexural deformation takes place in slide bar 5, the lower surface of floating roller 88 outlines and rolling slide rail 7 is replaced, and stops the continuation flexural deformation of slide bar 5.

Base 81 is welded on lathe frame 3 upper surfaces, the cushion block 82 that floats is installed in base 81 upper surfaces by plurality of fixed screw 92, also have some screwed holes 93 on the unsteady cushion block 82, in each screwed hole 93 adjustment screw 94 is installed all, the lower surface of adjustment screw 94 and base 81 upper surfaces are replaced, the height of unsteady cushion block 82 is adjustable, during adjusting, unclamp hold-down screw 92 earlier, adjustment screw 94 then turns clockwise, because lower surface and base 81 upper surfaces of adjustment screw 94 are replaced, thereby adjustment screw 94 can not do axial displacement, and unsteady cushion block 82 but can move in the rotation with adjustment screw 94, and then the gap length between adjusting roller 88 and rolling slide rail 7 lower surfaces, this gap length directly translates into the flexural deformation of the maximum that slide bar 5 can produce, and when flexural deformation during greater than this gap, the supporting component 8 that floats is replaced with rolling slide rail 7, stop the continuation flexural deformation of slide bar 5, and then guarantee the machining accuracy of part.

The foregoing description is only for the usefulness that the utility model is described; and be not to restriction of the present utility model; the those of ordinary skill in relevant technologies field; under the situation that does not break away from spirit and scope of the present utility model; can also make various variations and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be limited by each claim.

Claims

1. long span workbench, comprise workbench (1), be fixed in two slide blocks (2) at workbench (1) two ends, lower surface respectively and be installed in two bearings (4) on the lathe frame (3), two slide bars (5) and the rhizoid thick stick (6) that be arranged in parallel are installed on two bearings (4), wherein, two slide bars (5) are on the same horizontal plane, two slide blocks (2) all slidably are installed on two slide bars (5) by linear bearing (21), one feed screw nut (22) that is connected with leading screw (6) wherein also is installed on the slide block (2), by driving leading screw (6) rotation, can drive workbench (1) and go up slip at two slide bars (5), it is characterized in that: also be connected with a rolling slide rail (7) that be arranged in parallel with leading screw (6) between the lower end of two described slide blocks (2), rolling slide rail (7) downside is provided with a unsteady supporting component (8), when downward flexural deformation took place slide bar (5), the supporting component (8) that floats was replaced with rolling slide rail (7).

2. a kind of long span workbench as claimed in claim 1, it is characterized in that: described unsteady supporting component (8) comprises base (81), cushion block (82), roller support (83) and roller (88) float, wherein, roller support (83) is fixed in unsteady cushion block (82) upper end, this roller support (83) is made up of two vertically disposed back-up blocks (84) and the bearing pin (85) that is installed between two back-up blocks (84), and roller (88) is installed on the bearing pin (85) by bearing (89) is rotating.

3. a kind of long span workbench as claimed in claim 2, it is characterized in that: described base (81) is welded on described lathe frame (3) upper surface, described unsteady cushion block (82) is installed in base (81) upper surface by plurality of fixed screw (92), also have some screwed holes (93) on the unsteady cushion block (82), adjustment screw (94) all is installed in each screwed hole (93), and the lower surface of adjustment screw (94) and base (81) upper surface are replaced.