CN217764723U

CN217764723U - Angle deviation detection device suitable for large-scale isosceles square

Info

Publication number: CN217764723U
Application number: CN202222261430.1U
Authority: CN
Inventors: 贾敏强; 王传海; 王明昱; 胡安继; 曹丛; 唐莹
Original assignee: Shandong Institute of Metrology
Current assignee: Shandong Institute of Metrology
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2022-11-08
Anticipated expiration: 2032-08-26

Abstract

The utility model discloses an angular deviation detection device suitable for large-scale isosceles square, include: the measuring mechanism comprises a linear guide rail, a first sliding block and a measuring meter with a measuring head, wherein the linear guide rail is arranged on a plane, the first sliding block is movably connected to the linear guide rail, and the measuring meter is arranged on the first sliding block; the limiting part is arranged on one side of the plane and is parallel to the linear guide rail, the driving parts are arranged on two sides of the limiting part, a push rod is connected to the output end of the driving part, and a pressing block is arranged at the front end of the push rod. The right-angle square is clamped by the ejection pressing blocks of the driving parts on the two sides, so that the right-angle square can be prevented from being turned on one side while being fixed, the situation that the position of the right-angle square is deviated in the measuring process is guaranteed, and the accuracy of detection data is guaranteed.

Description

Angle deviation detection device suitable for large-scale isosceles square

Technical Field

The utility model relates to an instrument measurement calibration field, in particular to angular deviation detection device suitable for large-scale isosceles square.

Background

Large isosceles squares, which have 1 90 ° and 2 45 ° angles, are important measuring instruments, and as a 90 ° vertical standard and a 45 ° angle standard, the side length of such squares is usually greater than 500mm, and because of their large size and thickness, it is difficult to fix the positions of the squares when measuring the angular deviation of their 45 ° angles, and once a positional deviation occurs, the measurement results are erroneous.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an angular deviation detection device suitable for large-scale isosceles square is in order to solve the above-mentioned problem of the fixed difficulty of square when measuring large-scale isosceles square angular deviation.

According to the utility model discloses an aspect provides an angular deviation detection device suitable for large-scale isosceles square, include: a measurement mechanism comprising: the measuring device comprises a linear guide rail, a first sliding block and a measuring meter with a measuring head, wherein the linear guide rail is arranged on a plane, the first sliding block is movably connected to the linear guide rail, and the measuring meter is arranged on the first sliding block; a securing mechanism, comprising: the limiting part is arranged on one side of the plane and is parallel to the linear guide rail, the driving parts are arranged on two sides of the limiting part, a push rod is connected to the output end of the driving part, and a pressing block is arranged at the front end of the push rod.

Support the isosceles square against in the inboard of spacing portion, the tight square of drive division ejecting compact heap through both sides presss from both sides tightly, also can prevent that the square from turning on one's side when fixed square, ensures that the skew can not take place in measured in-process square, ensures that the detection data is accurate.

In order to better solve the technical defects, the utility model discloses still have better technical scheme:

in some embodiments, a first movable groove for the second sliding block to move is formed in the inner side of the limiting portion, and the second sliding block is arranged on one side, opposite to the limiting portion, of the pressing block. Therefore, the pressing block can be prevented from being offset in the moving and extending process through the matching of the second sliding block and the first movable groove, and the square can be prevented from being dislocated.

In some embodiments, the driving part is respectively arranged at the left side and the right side of the limiting part, and the motion direction of the output end of the driving part is parallel to the limiting part. Therefore, the right-angle ruler cannot be displaced after the pressing block is ejected out.

In some embodiments, the drive portion is a linear motor. Thus, the linear motor has a simple structure. The linear motor can directly generate linear motion, the precision of the machine position is high, the cost performance is higher, and the linear motor is stable and reliable, is easy to operate and is easy to maintain.

In some embodiments, the top of the linear guide is provided with graduation marks. Therefore, the scale marks are arranged, so that a measurer can conveniently measure and position the ruler.

In some embodiments, the top of the stop portion is provided with graduation marks. Therefore, the scale marks are arranged, so that a measurer can conveniently measure and position the ruler.

In some embodiments, a telescopic rod is connected between the measuring gauge and the first slider. Therefore, the measuring meter can be conveniently moved to the measuring point.

In some embodiments, the telescoping rod is perpendicular to the measurement head. Therefore, the measuring head is prevented from deviating in position during movement, and measuring results are prevented from being wrong.

In some embodiments, a second movable groove for the third sliding block to move is formed in the plane, and the third sliding block is arranged at the bottom of the linear guide rail. Therefore, the whole linear guide rail can move on the second movable groove, and the distance between the linear guide rail and the limiting part can be adjusted according to the square with different sizes.

In some embodiments, the second movable groove is perpendicular to the limiting portion. Therefore, the movement direction of the linear guide rail is ensured to be vertical to the limiting part.

Drawings

Fig. 1 is a schematic side view of the driving portion of the present invention;

fig. 2 is a schematic top view of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 2, the present application provides an angle deviation detecting device suitable for a large isosceles square, comprising:

a measurement mechanism comprising: the measuring device comprises a linear guide rail 1, a first sliding block 2 and a measuring meter 3 with a measuring head, wherein the linear guide rail 1 is arranged on a plane, the first sliding block 2 is movably connected to the linear guide rail 1, and the measuring meter 3 is arranged on the first sliding block 2;

a securing mechanism, comprising: spacing portion 4 and drive division 5, spacing portion 4 sets up in planar one side and is parallel with linear guide 1, and drive division 5 sets up in the both sides of spacing portion 4, is connected with push rod 6 on the output of drive division 5, and the front end of push rod 6 is provided with compact heap 7.

The first movable groove that supplies the activity of second slider is seted up to spacing portion 4's inboard, and one side of the relative spacing portion 4 of compact heap 7 is provided with the second slider, can prevent through the cooperation in second slider and first movable groove that compact heap 7 from taking place the skew at the in-process that removes to stretch out, leads to the square to take place to translocate.

The driving part 5 is respectively arranged on the left side and the right side of the limiting part 4, the moving direction of the output end of the driving part 5 is parallel to the limiting part 4, and the compressing block 7 is guaranteed not to enable the square to be dislocated after being ejected.

In some embodiments, the driving part 5 is a linear motor, which is simple in construction. The linear motor can directly generate linear motion, the precision of the machine position is high, the cost performance is higher, and the linear motor is stable and reliable, is easy to operate and is easy to maintain.

The top of the linear guide rail 1 is provided with scale marks; the top of spacing portion 4 is provided with the scale mark, sets up the scale mark and makes things convenient for survey crew to measure and fix a position the ruler.

Be connected with telescopic link 8 between meter 3 and the first slider 2, conveniently remove meter 3 to the measuring point.

The telescopic rod 8 is perpendicular to the measuring head, so that the measuring head is prevented from deviating in position in the moving process, and the measuring result is mistaken.

A second movable groove 9 for the third sliding block to move is formed in the plane, the third sliding block is arranged at the bottom of the linear guide rail 1, the whole linear guide rail 1 can move on the second movable groove 9, and the distance between the linear guide rail 1 and the limiting part 4 can be adjusted according to L-square with different sizes; the second movable groove 9 is perpendicular to the limiting part 4, so that the moving direction of the linear guide rail 1 is perpendicular to the limiting part 4.

The measurement method of this application is as follows: according to the arrangement shown in figure 1, at first fix a spacing portion 4 on the plane, utilize second movable groove 9 to remove linear guide 1 to suitable position, then place the square between spacing portion 4 and linear guide 1 and support and lean on in spacing portion 4's inboard, start the ejecting compact heap 7 of linear electric motor of both sides and press from both sides tight square, move to suitable position with linear guide 1 who installs measuring gauge 3, the position of adjustment measuring gauge 3, make its measuring head and the measuring point A contact of the hypotenuse of square, record and present the indication value is a. Slide the slider to linear guide 1's one end, give out the position, can transfer 90 with the square this moment, still lean on closely on spacing portion 4 with the right-angle side, slide the slider, make the measuring head and the contact of measuring point B, the present indicating value of record be B.

Due to the geometrical characteristics of the isosceles right triangle, if the values of the angle a and the angle B are both 45 ° and there is no error, a = B, and if a ≠ B, it indicates that there is an error between the two angles. The magnitude of the error can be calculated by the following equation.

In the formula: l-distance between measurement points.

Lean on the isosceles square in spacing portion 4 inboard, through 5 tight squares of tight clamps of 5 ejecting compact heap 7 of drive division of both sides, also can prevent that the square from turning on one's side when fixed square, ensure that the skew can not take place in measured in-process square, ensure to detect data accuracy.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an angular deviation detection device suitable for large-scale isosceles square which characterized in that includes:

a measurement mechanism comprising: the measuring device comprises a linear guide rail, a first sliding block and a measuring meter with a measuring head, wherein the linear guide rail is arranged on a plane, the first sliding block is movably connected to the linear guide rail, and the measuring meter is arranged on the first sliding block;

a securing mechanism, comprising: the limiting part is arranged on one side of the plane and is parallel to the linear guide rail, the driving part is arranged on two sides of the limiting part, a push rod is connected to the output end of the driving part, and a pressing block is arranged at the front end of the push rod.

2. The angle deviation detecting device suitable for the large isosceles square as claimed in claim 1, wherein the inner side of the limiting portion is provided with a first movable groove for the second sliding block to move, and one side of the compressing block opposite to the limiting portion is provided with the second sliding block.

3. The apparatus of claim 2, wherein the driving portions are respectively disposed at left and right sides of the position-limiting portion, and a moving direction of an output end of the driving portion is parallel to the position-limiting portion.

4. The apparatus of claim 1, wherein the drive unit is a linear motor.

5. The angle deviation detecting device for the large isosceles square according to claim 1, wherein the top of the linear guide is provided with a graduation line.

6. The angle deviation detecting device for the large isosceles square according to claim 1, wherein the top of the position-limiting part is provided with a scale mark.

7. The apparatus of claim 1, wherein a telescopic rod is connected between the measuring gauge and the first sliding block.

8. The apparatus of claim 7, wherein the telescoping rod is perpendicular to the measuring head.

9. The angle deviation detecting device suitable for the large isosceles square as claimed in claim 1, wherein a second movable groove for a third sliding block to move is formed on the plane, and the third sliding block is disposed at the bottom of the linear guide rail.

10. The apparatus of claim 9, wherein the second movable groove is perpendicular to the limiting portion.