CN202571810U

CN202571810U - Gantry cross beam with backward inclined structure

Info

Publication number: CN202571810U
Application number: CN 201220168065
Authority: CN
Inventors: 陈建智
Original assignee: SHE HONG INDUSTRIAL Co Ltd
Current assignee: SHE HONG INDUSTRIAL Co Ltd
Priority date: 2012-04-19
Filing date: 2012-04-19
Publication date: 2012-12-05
Anticipated expiration: 2022-04-19

Abstract

The utility model provides a gantry cross beam with a backward inclined structure, comprising a cross beam main body, wherein a base part is arranged on the bottom end of the cross beam main body; a sliding rail is arranged on the front top end of the cross beam main body; an inclined back part is arranged on the rear top end of the cross beam main body; the structure of the back part comprises a first face and a second face; a included angle more than 90 degrees is formed between the first face and the second face; when the sliding rail bears a load force, the line of force flow can be transmitted to the base part along a shortest path through the inclined back part; and in such a way, the structure of the cross beam main body achieves the advantages that the weight is low, the rigidity is high and the deformation can be reduced.

Description

Gantry crossbeam with back biassed fabric

Technical field

The utility model relates to a kind of toolroom machine, particularly relates to a kind of gantry crossbeam with back biassed fabric that reaches light weight, high rigidity and can reduce the deflection advantage.

Background technology

Referring to Fig. 1, the beam structure that general gantry toolroom machine uses mainly comprises a cross-beam body 10; These cross-beam body 10 bottom end positions are provided with the base portion 11 that can supply to be installed on the toolroom machine; Cross-beam body 10 the place ahead top ends are provided with a slide rail 12, and this slide rail 12 can supply to be provided with a slide (figure does not show), and slide can be done linear moving along slide rail 12; Cross-beam body 10 rear top ends are provided with a back 13; This back 13 is the square structure normally, and having one first 131 and 1 second 132, the first 131 and second 132 middle angles is to be vertical 90 degree.

Though above-mentioned cross-beam body 10 is beam structures of having continued to use for many years, yet still have problem to exist on using, the slide rail 12 of this cross-beam body 10 is when offering the slide installing; The weight of slide can produce a load force F to cross-beam body 10, and as shown in Figure 2, this load force F is to the influence of cross-beam body 10 internal structures; Its power streamline is along the back 13 first 131, is passed to second 132 again via 90 degree angles turnovers, and the path of power streamline is quite long; For cross-beam body 10 stressed, its internal structure has many inactive material, does not have the effect of obvious increase for mechanical rigid; And because the increase of materials used; Make cross-beam body 10 weight own increase the weight of, the central part of cross-beam body 10 can badly influence the machining accuracy of solid tool machine because gravity sag increases deflection.

The utility model content

The utility model purpose is to provide a kind of gantry crossbeam with back biassed fabric that reaches light weight, high rigidity and can reduce deflection.

The utility model provides a kind of gantry crossbeam with back biassed fabric; Include a cross-beam body; This cross-beam body bottom end position is provided with a base portion, and cross-beam body the place ahead top end is provided with slide rail one, and this cross-beam body rear top end is provided with a back that is oblique angle structure; This back comprise one with first of the orthogonal thereto angle of slide rail and one second with the orthogonal thereto angle of base portion, first is formed with an angle greater than 90 degree with second centre.

The beneficial effect of the utility model is: cross-beam body be provided with one be the angle of inclination the back, the oblique angle structure at this back streamline of can exerting all one's strength shortens, and reaches light weight, high rigidity whereby and can reduce the effect of deflection.

Description of drawings

Fig. 1 is the structure chart of general gantry toolroom machine cross-beam body;

Fig. 2 is the action diagram of above-mentioned cross-beam body, and the situation that power stream transmitted when this cross-beam body was stressed is described;

Fig. 3 is the structure chart that the utlity model has gantry crossbeam one preferred embodiment of back biassed fabric, explains that the utility model is provided with the back of an oblique angle structure on a cross-beam body;

Fig. 4 is the action diagram of above-mentioned preferred embodiment, and the situation that power stream transmitted when the utility model was stressed is described.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is elaborated.

Referring to Fig. 3; Gantry crossbeam that the utlity model has the back biassed fabric is in a preferred embodiment; Consist predominantly of a cross-beam body 20, these cross-beam body 20 bottom end positions are provided with a base portion 21, and this base portion 21 can supply to be installed on the column (figure does not show) of gantry toolroom machine; Cross-beam body 20 the place ahead top ends are provided with a slide rail 22; This slide rail 22 can supply a slide (figure do not show) setting, cross-beam body 20 rear top ends be provided with one be oblique angle structure back 23, this back 23 include one with first 231 of slide rail 22 orthogonal thereto angles and one and second 232 of base portion 21 orthogonal thereto angles; Be formed with an angle theta in the middle of first 231 and second 232, this angle theta is less than 180 degree greater than 90 degree.

More than be the general introduction that the utlity model has gantry beam member shape of back biassed fabric, then, the effect that again the power streamline and the expection of the utility model structure can be reached is stated like the back:

Referring to Fig. 4, when the utility model cross-beam body 20 was mounted with slide on slide rail 22, the weight of slide can produce a load force F to cross-beam body 20; Load force F does the time spent to slide rail 22; The power streamline transmits second 232 of arrival via first 231 transmission at back 23 with the obtuse angle mode, transmits and arrives base portion 21; The power streamline transmits with the kenel of cut-offfing, and can significantly shorten the path of power streamline whereby.

In sum, gantry crossbeam that the utlity model has the back biassed fabric mainly is in order to improve the disappearance that general gantry cross-beam body 10 uses, and the employed technological means of the utility model is the back 23 structure kenels that change cross-beam body 20; Make first 231 and second 232 the angle theta at back 23 make obtuse angle kenel greater than 90 degree, when cross-beam body 20 when bearing a load force F, the power streamline is 23 to transmit along the back with shortest path; Therefore the utility model can improve the length of slide rail 22 power flow path when stressed, and in addition, rigidity increases the utility model because the power flow path shortens; Can improve cross-beam body 20 opposings from each axial cutting force conduction; Have tangible rigidity effect, last, because the utility model adopts back, oblique angle 23 structure Design; Cross-beam body 10 compared to general square structure; The material that the utility model is capable of reducing using reaches light-weighted effect, because the relation of cross-beam body 20 weight savings; The deflection of the central part gravity sag of cross-beam body 20 reduces, and makes cross-beam body 20 can keep the optimal process precision.

Claims

1. gantry crossbeam with back biassed fabric includes a cross-beam body, and this cross-beam body bottom end position is provided with a base portion, and cross-beam body the place ahead top end is provided with slide rail one, it is characterized in that:

This cross-beam body rear top end is provided with a back that is oblique angle structure; This back comprise one with first of the orthogonal thereto angle of slide rail and one second with the orthogonal thereto angle of base portion, first is formed with an angle greater than 90 degree with second centre.