CN103837058A

CN103837058A - Center line caliper gauge

Info

Publication number: CN103837058A
Application number: CN201410014419.2A
Authority: CN
Inventors: 王立冬; 周旭东; 彭雄奇
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-01-03
Filing date: 2014-01-03
Publication date: 2014-06-04

Abstract

In order to rapidly and accurately determine the position of a center line or the center of an object in various fields, the invention provides a center line caliper gauge. The center line caliper gauge can solve the problem that a device for positioning the position of the center line or the center does not exist in the fields, and can rapidly and accurately determine the position of the center line or the center of the object and mark the scale distance. According to the technical scheme, the upper end and the lower end of a cuboid-shaped scale holder are respectively provided with a sliding way, racks are installed on the sliding ways, the tail ends of the racks are fixedly connected with measuring jaws, a gear is installed between the two racks and fixedly connected with a bearing through a shaft and then meshed with the racks together, and a center scale is fixed to the center of the scale holder. By the adoption of the center line caliper gauge, the position of the center line or the center of the object can be rapidly and accurately determined, and the center line caliper gauge is easy to use, high in working reliability and accurate in positioning. The center line caliper gauge can position a box, a beam end and a track, and can also position the position of the center line or the center of the object with the regular geometry shape.

Description

Center line calliper

Technical field

The present invention relates to mechanical engineering, measurer field, be specifically related to a kind of calliper of locating center line or center.

Background technology

The method of now general searching object center line or center is the mode by measuring, such as at mechanical engineering field, the mechanical property of measuring material plays an important role to whole mechanical development, the measurement of mechanical property has a lot of different experimental techniques, wherein one is exactly tension test, tension test sample used need to be delimited gauge length in the time that normal temperature stretches, in the time of drawing by high temperature, and the thermopair that also need use at the center of sample welding thermometric except delimiting gauge length.For example, being that circular sample is while carrying out stretching experiment to a cross section, the method of traditional measurement tensile sample center is: first go out the length of Lc in Fig. 1 with ruler measurement, then calculate the size of Lc/2, the position that finally measures Lc/2 take arbitrary end as benchmark is center.But this kind of method is more loaded down with trivial details, this method can not be carried out centralized positioning and gauge length demarcation to multiple samples simultaneously simultaneously.Fast and accurately determine object center every field all tool be of great significance.As Chinese patent open file CN201941432U discloses a kind of adjustable drawing compass for centerline of beam ends device, it is mainly used in locating beam-ends center line; Chinese patent open file CN102199906A discloses a kind of track centerline ruler device, only limits to locate the midline position of railroad track.But a kind of center line or center of installing energy positioning object is also badly in need of in other some fields.The object of center line calliper of the present invention is center line or the center of quick positioning object and gauge length accurately delimited.

Summary of the invention

In order to determine fast and accurately center line or the center of object in every field, the invention provides a kind of center line calliper, this center line calliper can not only solve the problem that some fields lack location center line or center device, and can determine fast object center line or center and delimit gauge length.

The technical scheme of center line calliper of the present invention is: at the upper and lower two ends of rectangular parallelepiped chi frame, slideway is set, tooth bar is housed on slideway, and tooth bar end and measuring jaw are fixed, and between two tooth bars, gear are housed, gear is fixedly connected with bearing by axle afterwards and tooth bar meshes together, and paper centering scale is fixed on Chi Jia center.

Two described measuring jaw front ends adopt slope.

Described paper centering scale front end is fixed with scale, has the scale take millimeter as unit on scale, and scale is movable, can be connected and fixed by bolt and paper centering scale, and the shape of scale is square waveform.

The invention has the beneficial effects as follows: determine fast and accurately center line or the center of object, and use is simple, functional reliability is high, accurate positioning.This center line calliper is except locating casing, beam-ends, track, and the object that other are had to regular geometric body can be located its center line or center equally.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the present invention is further described.

Fig. 1 is the tensile sample schematic diagram in stretching experiment.

Fig. 2 is the vertical view of center line calliper;

Fig. 3 is the right view of slideway while coordinating with measuring jaw;

Fig. 4 is the right view of center line calliper;

Fig. 5 is the longitudinal profile structural map of first embodiment of center line calliper;

Fig. 6 is the longitudinal profile structural map of second embodiment of center line calliper;

Fig. 7 is the 3rd embodiment of center line calliper;

Fig. 8 is the 4th embodiment of center line calliper.

Reference numeral: 1-chi frame, 2-slideway, 3-tooth bar, 4-gear, 5-key, 6-axle, 7-bearing, 8-measuring jaw, 9-slideway, 10-scale, 11-threaded hole, 12-paper centering scale, 13-tooth bar

Embodiment

Specific embodiment 1: in Fig. 2, slideway 2 is fixed on chi frame 1, tooth bar 3 is arranged on slideway 2, measuring jaw 8 is fixed with tooth bar 3 ends, gear 4 is fixedly connected with bearing 7 by axle 6 afterwards and tooth bar 3 meshes together, paper centering scale 12 is fixed on chi frame 1 center, in the time that needs are measured gauge length, scale 10 can be fixed on paper centering scale 1 and measure.Described two measuring jaws, 8 front ends adopt slope.Described paper centering scale 12 front ends are fixed with scale 10, have the scale take millimeter as unit on scale 10, and scale 10 is movable, can be connected and fixed by bolt and paper centering scale 12, and the shape of scale 10 is square waveforms.

Specific embodiment 2: in Fig. 5, sample is carried out in location, center, measuring jaw 8 is in the process contacting with sample, tooth bar 3 starts mobile along slideway 2, by the transmission of gear 4, tooth bar 13 also moves along slideway 9, when measuring jaw 8 is stuck in sample two ends by the time, stops, the position that is arranged on the center reference A indication of the paper centering scale 12 on chi frame 1 is the center of sample, has completed the location of sample center with scoring tool along paper centering scale picture straight line.If sample delimited to gauge length, can install gauge length instrument 10, moving forward and backward paper centering scale 12 makes gauge length instrument be placed on the position that sample is suitable, suppose take the distance between benchmark B and benchmark C as gauge length, so only need draw straight line and completed respectively with scoring tool the demarcation of gauge length along the benchmark B of gauge length instrument and benchmark C.

Specific embodiment 3: in Fig. 6, multiple samples being carried out in center and gauge length location simultaneously, make equally measuring jaw 8 and sample clamping, the position that is arranged on the center reference A indication of the paper centering scale 12 on chi frame 1 is the center of sample, move forward and backward equally paper centering scale 12 and make gauge length instrument be placed on the position that sample is suitable, the distance between benchmark B and benchmark C is gauge length.

Specific embodiment 4: in Fig. 7, the present invention can also carry out centralized positioning to right cylinder bottom surface, first the distance of adjusting two secondary measuring jaws 8 makes itself and right cylinder contacts side surfaces, to guarantee that paper centering scale 12 is on right cylinder bottom surface simultaneously, now draw straight line along paper centering scale with scoring tool, this straight line is exactly bottom surface diameter of a circle; Then rotate certain angle, same method is drawn straight line along paper centering scale with scoring tool, and the intersection point of these two straight lines is exactly the center of right cylinder bottom surface.

Specific embodiment 5: the present invention can also carry out center line location to rectangular parallelepiped surface as shown in Figure 8, first the distance of adjusting two secondary measuring jaws 8 makes itself and rectangular parallelepiped Surface Contact, to guarantee paper centering scale 12 just and rectangular parallelepiped Surface Contact simultaneously, then draw straight line along paper centering scale 12 use line tools, this straight line is exactly the center line on rectangular parallelepiped surface.

Claims

1. a center line calliper, comprise chi frame, slideway, tooth bar, gear, bearing, measuring jaw, scale, paper centering scale, it is characterized in that: at the upper and lower two ends of rectangular parallelepiped chi frame, slideway is set, tooth bar is housed on slideway, tooth bar end and measuring jaw are fixed, between two tooth bars, gear is housed, gear is fixedly connected with bearing by axle afterwards and tooth bar meshes together, and paper centering scale is fixed on Chi Jia center.

2. center line calliper according to claim 1, is characterized in that: described two measuring jaws (8) front end adopts slope.

3. center line calliper according to claim 1, it is characterized in that: described paper centering scale (12) front end is fixed with scale (10), scale has the scale take millimeter as unit on (10), scale (10) is movable, can be connected and fixed by bolt and paper centering scale (12), the shape of scale (10) is square waveform.