CN2627338Y

CN2627338Y - Triangular section cross beam for measuring machine

Info

Publication number: CN2627338Y
Application number: CN 03216108
Authority: CN
Inventors: 郝健
Original assignee: Qingdao Brown & Sharpe Qianshao Technology Co ltd
Current assignee: Hexagon Metrology Qingdao Co Ltd
Priority date: 2003-04-01
Filing date: 2003-04-01
Publication date: 2004-07-21
Anticipated expiration: 2013-04-01

Abstract

The utility model provides a triangular cross section beam of measuring machine, which comprises a beam. The utility model is characterized in that the beam cross section shape is triangular, and compared with a rectangular beam, the adoption of the triangular beam has greatly improved on rigidity and anti-torsion properties. In the same experimental conditions, the support fixation methods of the same span L, the load P, the torque M, as well as the beam are exactly the same; the anti-torsion capacities of the triangular cross section beam and the rectangular beam are separately measured; the test results are: 1) the torsional deformation of the triangular beam end is 0.25''; 2) the rectangular beam is 3.5''. Therefore it can be seen that the anti-torsion deformation of the triangular beam is only 1/14 of the traditional rectangular beam and the anti-torsion deformation capacity is greatly improved, thereby improving the inherent precision degree of the measuring machine.

Description

Measuring machine triangle section crossbeam

Technical field

The utility model relates to a kind of three coordinate measuring machine crossbeam, specifically to the improvement of existing three coordinate measuring machine beam structure.

Background technique

Existing coordinate measuring machine and some other surveying instruments, the variation that its used crossbeam mostly adopts the rectangular cross-section and make some concrete structures on the basis of rectangular cross-section.As Fig. 1, Fig. 2 and shown in Figure 3 be exactly one of a kind of rectangular cross section structure form, 1 is the rectangle crossbeam; 2, rectangular cross-section; 3, chamber inner reinforced plate.Above-mentioned crossbeam generally pushes, stretches with aluminium, and is fairly simple because of its sectional shape, so be easy to extruding, drawing and forming, makes, difficulty of processing is less relatively, crossbeam is installed on the measuring machine install, adjustment process is simple.But said structure form crossbeam obviously exists following defective: owing to be subjected to the influence of its sectional shape, its resistance to flexure, twisting strength and rigidity are relatively poor, influence the accuracy of its measurement.

Summary of the invention

The utility model is that will to solve resistance to flexure, twisting strength and rigidity that prior art exists relatively poor, influences problems such as its measurement precision.

In order to reach the purpose that solves the problems of the technologies described above, the technical solution of the utility model is: a kind of measuring machine triangle section crossbeam, it comprises crossbeam, it is characterized in that: the sectional shape of described crossbeam is a triangle.

In further detailed structure of the present utility model, the sectional shape of described crossbeam is an equilateral triangle.

In further detailed structure of the present utility model, be provided with the chamber inner reinforced plate in the crossbeam chamber.

In further detailed structure of the present utility model, the chamber inner reinforced plate in the crossbeam chamber is provided with by equilateral triangle, forms four equilateral triangles in the chamber.

In further detailed structure of the present utility model, chamber inner reinforced plate and crossbeam coverboard in the crossbeam chamber are provided with by equilateral triangle.

The utility model compared with prior art has the following advantages and good effect: 1, adopt the triangle crossbeam no matter all to be significantly increased on rigidity still is antitorque commentaries on classics performance than rectangle crossbeam.Under same experimental conditions: the support fixation mode of identical span L, suffered load p, moment M and crossbeam is identical, measure the anti-torsion ability of triangular-section crossbeam and rectangular cross-section crossbeam respectively, test result: its terminal torsional deflection of (1) triangle crossbeam is 0.25 ＂; (2) the rectangle crossbeam is 3.5 ＂ this shows, the antitorque transformation of triangular-section crossbeam shape only is 1/14 of a traditional rectangular crossbeam, and antitorque transformation shape ability greatly improves, and can improve the measuring machine inherent accuracy like this.2, can alleviate the moving mass of measuring machine crane span structure part, effectively improve its precision.

Description of drawings

Below in conjunction with drawings and Examples the utility model is described in detail.

Fig. 1 is the plan view of prior art rectangle crossbeam;

Fig. 2 is the left view of prior art rectangle crossbeam;

Fig. 3 is the stereogram of prior art rectangle crossbeam;

Fig. 4 is one of the utility model embodiment's a plan view;

Fig. 5 is one of the utility model embodiment's a right elevation;

Fig. 6 is one of the utility model embodiment's a stereogram;

Fig. 7 is the utility model embodiment's two a plan view;

Fig. 8 is the utility model embodiment's two a side view;

Fig. 9 is the utility model embodiment's two a stereogram;

Figure 10 is one of the utility model embodiment's user mode figure.

1, rectangle crossbeam; 2, rectangular cross-section; 3, chamber inner reinforced plate; 4, triangle crossbeam; 5, crossbeam coverboard; 6, chamber inner reinforced plate; 7,8,13, rigidity air-bearing; 9 struts; 10, main leg; 11, elasticity air-bearing; 12, balladeur train; 14, read head; 15, main working surface.

Embodiment

Referring to Fig. 4, Fig. 5 and Fig. 6, as can be seen from the figure, the sectional shape of crossbeam 4 is an equilateral triangle, the form that is provided with of three chamber inner reinforced plates 6 also is equilateral triangle, each chamber inner reinforced plate 6 is in the neutral position of the crossbeam coverboard 5 of crossbeam 4, thereby makes four equilateral triangles of the interior formation of cavity of crossbeam 4.

Referring to Figure 10, the crossbeam 4 of Composite Triangular tee section is installed on the main leg 10 that end face is an inclined-plane, form a gantry type frame structure.Attach it on the working platform then, form a rigidity mobile gantry framework, rigidity and elasticity air-bearing 7,8,13,11 are installed on balladeur train 12, again its balladeur train 12 parts are installed on the main working surface 15 of triangle crossbeam, thereby form moving member.For the installation of three the rigidity air-bearings 7,8,13 on the main working surface 15 and be positioned with extremely strict installation requirement.

Referring to Fig. 7, Fig. 8 and Fig. 9, different with a last embodiment is, the set-up mode difference of chamber inner reinforced plate 6, and each chamber inner reinforced plate 6 is arranged on the angular region, form equilateral triangles with crossbeam coverboard 5 is common, and chamber inner reinforced plate 6 is the base of each equilateral triangle.

Above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited to above-mentioned giving an example, and those skilled in the art are in essential scope of the present utility model; the variation of making, remodeling, interpolation or replacement also should belong to protection domain of the present utility model.

Claims

1, a kind of measuring machine triangle section crossbeam, it comprises crossbeam, it is characterized in that: the sectional shape of described crossbeam is a triangle.

2, a kind of measuring machine triangle section crossbeam according to claim 1, it is characterized in that: the sectional shape of described crossbeam is an equilateral triangle.

3, a kind of measuring machine triangle section crossbeam according to claim 1 and 2, it is characterized in that: described crossbeam is provided with the chamber inner reinforced plate in the chamber.

4, a kind of measuring machine triangle section crossbeam according to claim 3, it is characterized in that: the chamber inner reinforced plate in the crossbeam chamber is provided with by equilateral triangle, forms four equilateral triangles in the chamber.

5, a kind of measuring machine triangle section crossbeam according to claim 3, it is characterized in that: chamber inner reinforced plate and crossbeam coverboard in the crossbeam chamber are provided with by equilateral triangle.