CN108253865B - Rectangular groove deviation measuring instrument and measuring method - Google Patents

Rectangular groove deviation measuring instrument and measuring method Download PDF

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Publication number
CN108253865B
CN108253865B CN201810215098.0A CN201810215098A CN108253865B CN 108253865 B CN108253865 B CN 108253865B CN 201810215098 A CN201810215098 A CN 201810215098A CN 108253865 B CN108253865 B CN 108253865B
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China
Prior art keywords
rectangular groove
deviation
side wall
measuring
ruler
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CN108253865A (en
Inventor
马博隆
张西平
李嵬
任亮
罗南刚
王伟伟
鲁兴社
查忠涛
魏卫刚
王舒玮
康虎虎
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Shaanxi Construction Engineering Group Co Ltd
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Shaanxi Construction Engineering Group Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)

Abstract

The invention discloses a rectangular groove deviation measuring instrument, which comprises a transverse measuring ruler and two supporting rods, wherein the transverse measuring ruler is horizontally arranged on a rectangular groove to be measured, the supporting rods are respectively supported at the left side and the right side of the transverse measuring ruler, the two supporting rods are arranged in parallel and are perpendicular to the transverse measuring ruler, and the bottoms of the two supporting rods are both supported at the bottom of the rectangular groove to be measured; the outer side of the bottom of each supporting rod is provided with a supporting piece with the outer end propped against the bottom of the side wall of the rectangular groove to be measured, the measuring instrument can accurately measure the dimensional deviation between the top and the bottom of the left side wall and the right side wall of the rectangular groove, the distance between the two supporting rods and the height of the transverse measuring ruler can be adjusted simply, conveniently and rapidly, the use and the operation are flexible, the reliability is high, and the measuring instrument is economical and practical. Meanwhile, the invention also discloses a rectangular groove deviation measuring method which is reasonable in design, simple and convenient to measure and reliable in measuring result, and can be used for simply, conveniently, accurately and quickly measuring whether the deviation exists on the side wall of the rectangular groove to be measured and the deviation direction and the deviation value of the side wall when the deviation exists.

Description

Rectangular groove deviation measuring instrument and measuring method
Technical Field
The invention relates to a measuring instrument, in particular to a rectangular groove deviation measuring instrument and a measuring method.
Background
Rectangular grooves are widely applied nowadays, and the rectangular grooves refer to groove bodies with rectangular cross sections, such as rectangular grooves formed in mechanical parts, rectangular grooves formed in construction in the fields of civil engineering and building construction, and the inner cavities of forming templates for forming concrete structural members with rectangular cross sections are rectangular grooves. In order to ensure that the rectangular groove meets the design requirements, the size of the rectangular groove needs to be accurately measured. At present, a special measuring tool for a rectangular groove is lacking, and particularly in the fields of civil engineering and building construction, when the size of the rectangular groove is measured on a construction site, only a tape measure is adopted to simply measure the upper size (namely the upper width) of the rectangular groove. The method for measuring the size of the rectangular groove by using the tape measure has obvious defects, and is mainly characterized in the following two aspects: firstly, the measuring efficiency is very low, a plurality of different positions of the rectangular grooves are required to be measured one by adopting a tape measure manually, the placing position and the measuring angle of the tape measure are required to be checked repeatedly during each measurement, the measuring process is very slow, the measuring precision cannot be effectively ensured, and in addition, because the number of the rectangular grooves to be measured in a construction site is very large, a great amount of manpower and material resources are required to be spent in completing the measuring process of all the rectangular grooves, and time and labor are wasted; secondly, the measurement result is unreliable, only the upper dimension of the rectangular groove can be measured, but even if the upper dimension of the rectangular groove is measured to meet the design requirement, the cross section of the rectangular groove cannot be guaranteed to be rectangular, for example, the cross section of the rectangular groove can be parallelogram, trapezoid or other quadrangles due to construction errors in a construction site, although the upper portion of the rectangular groove is measured by using a tape measure to meet the design requirement, the rectangular groove obviously does not meet the design requirement, and therefore, the problem of measuring the dimension of the rectangular groove cannot be effectively solved by adopting the method for measuring the upper dimension of the rectangular groove by using the tape measure.
From the above, it can be seen that the bottom and the two sidewalls of the rectangular groove are both planar, so as to ensure that the dimensions of the rectangular groove meet the design requirements, and when the rectangular groove (i.e. the rectangular groove to be measured) is measured, the width of the upper portion and the width of the bottom of the rectangular groove both need to meet the design requirements, and meanwhile, the two sidewalls of the rectangular groove both need to be vertically arranged with the bottom of the rectangular groove.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the rectangular groove deviation measuring instrument aiming at the defects in the prior art, the supporting rods are vertically arranged at two sides of the transverse measuring ruler, the supporting pieces propped against two sides of the bottom of the rectangular groove to be measured are arranged at the outer side of the bottom of each supporting rod, the size deviation between the top and the bottom of the left side wall and the right side wall of the rectangular groove can be accurately measured, the distance between the two supporting rods and the height of the transverse measuring ruler can be simply, conveniently and rapidly adjusted, the use and the operation are flexible, the reliability is high, the economical and practical effects are realized, and the popularization and the use are convenient.
In order to solve the technical problems, the invention adopts the following technical scheme: a rectangular groove deviation measuring instrument is characterized in that: the device comprises a transverse measuring ruler and two supporting rods, wherein the transverse measuring ruler is horizontally arranged on a rectangular groove to be measured, the supporting rods are respectively supported at the left side and the right side of the transverse measuring ruler, the two supporting rods are arranged in parallel and are vertically arranged with the transverse measuring ruler, the transverse measuring ruler is arranged along the width direction of the rectangular groove to be measured, and the bottoms of the two supporting rods are both supported at the bottom of the rectangular groove to be measured; the transverse measuring ruler is provided with two transverse installation seats for installing supporting rods, the outer side of the bottom of each supporting rod is provided with a supporting piece, the outer end of each supporting piece is supported against the bottom of the side wall of the rectangular groove to be measured, and the supporting pieces are arranged in parallel with the transverse measuring ruler, and the outer ends of the supporting pieces are supporting top ends; the two supporting pieces and the two supporting rods are uniformly arranged on the same plane, and the distance D1 between the supporting top ends of the two supporting pieces is the same as the width of the bottom of the rectangular groove to be detected; the inner ends of the supporting pieces are fixed at the bottoms of the outer side walls of the supporting rods, the inner ends of the supporting pieces are fixed ends, and the distance D2 between the fixed ends of the two supporting pieces is the same as the distance between the outer side walls of the supporting rods.
Above-mentioned rectangle groove deviation measuring apparatu, characterized by: the structure and the size of the two supporting pieces are the same and are symmetrically distributed, the supporting pieces are right-angle triangular plates, one right-angle side of each right-angle triangular plate is fixed on the outer side wall of each supporting rod, and the other right-angle side of each right-angle triangular plate is horizontally supported at the bottom of the rectangular groove to be detected; the structure and the size of the two supporting rods are the same.
Above-mentioned rectangle groove deviation measuring apparatu, characterized by: a guide seat for guiding the supporting rods is arranged on each transverse installation seat, each supporting rod is inserted into one guide seat from bottom to top, and a guide hole for the supporting rod to be inserted is formed in each guide seat; the transverse installation seat and the transverse measuring ruler and the supporting rod and the guide seat are locked and fixed through locking pieces.
Above-mentioned rectangle groove deviation measuring apparatu, characterized by: the transverse measuring ruler is a flat ruler which is vertically arranged with the rectangular groove to be measured, the two transverse installation seats and the two supporting rods are located at the rear side of the flat ruler, and length scale marks are arranged on the front side wall of the flat ruler.
Above-mentioned rectangle groove deviation measuring apparatu, characterized by: the transverse measuring rule is an L-shaped flat rule and is divided into a left rule body and a right rule body, the width of the left rule body is larger than that of the right rule body, the left rule body and the right rule body are arranged on the same vertical surface, the left rule body and the right rule body are rectangular rules, and the upper surfaces of the left rule body and the right rule body are flush;
The two transverse installation seats are arranged on the same horizontal plane, the bottoms of the two transverse installation seats are flush, the two transverse installation seats are arranged on the right ruler body, and the bottoms of the two transverse installation seats are flush with the bottom of the left ruler body.
Above-mentioned rectangle groove deviation measuring apparatu, characterized by: the flat ruler is a first measuring ruler or a second measuring ruler;
the lower part of the front side wall of the first measuring ruler is provided with length scale marks;
the two supporting pieces are respectively a left supporting piece and a right supporting piece which are positioned below the left side and the right side of the transverse measuring ruler, the two supporting rods are respectively a left supporting rod and a right supporting rod which are supported on the left side and the right side of the transverse measuring ruler, and the two transverse mounting seats are respectively a left mounting seat for mounting the left supporting rod and a right mounting seat for mounting the right supporting rod; the left mounting seat is tightly attached to the left ruler body;
The lower part of the front side wall of the second measuring ruler is provided with a left end measuring scale mark and a main measuring scale mark, the left end measuring scale mark and the main measuring scale mark are length scale marks, and zero scale marks of the left end measuring scale mark and the main measuring scale mark are overlapped; the left end measuring scale mark is positioned at the lower part of the left end of the second measuring ruler, the main measuring scale mark is positioned at the right side of the left end measuring scale mark, the scale value of the main measuring scale mark is gradually increased from left to right, and the scale value of the left end measuring scale mark is gradually increased from right to left; the zero scale line of the main measurement scale line is positioned at the left side of the left side supporting rod, and the distance between the zero scale line of the main measurement scale line and the left side wall of the left side supporting rod is the same as the transverse length L1 of the left supporting rod top piece; all scale marks positioned on the left side of the left side supporting rod in the left end measurement scale mark and the main measurement scale mark form a left deviation measurement scale mark for measuring left deviation d1 of the rectangular groove to be measured, wherein d1 is a deviation value of the left side wall of the rectangular groove to be measured, and d1 is a distance between the bottom and the upper part of the left side wall of the rectangular groove to be measured;
The right mounting seat is provided with a right deviation measuring ruler for measuring the right deviation d2 of the rectangular groove to be measured, the right deviation measuring ruler comprises a vertical ruler body which is arranged in parallel with the second measuring ruler, the vertical ruler body is positioned at the front side of the second measuring ruler and is provided with a right deviation measuring scale mark for measuring d2, d2 is a deviation value of the right side wall of the rectangular groove to be measured, and d2 is a distance between the bottom and the upper part of the right side wall of the rectangular groove to be measured; the area where the right deviation measurement scale mark is positioned on the vertical scale body is a scale area, a zero scale mark of the right deviation measurement scale mark is positioned in the middle of the scale area, and the distance between the zero scale mark of the right deviation measurement scale mark and the right side wall of the right support rod is the same as the transverse length L2 of the right support top piece; the scale value of the scale line positioned on the left side of the zero scale line in the scale zone is gradually increased from right to left, and the scale value of the scale line positioned on the right side of the zero scale line in the scale zone is gradually increased from left to right;
The bottom of the vertical ruler body is flush with the bottom of the left ruler body.
Above-mentioned rectangle groove deviation measuring apparatu, characterized by: the two transverse mounting seats are mounting seats which are sleeved on the right side ruler body from back to front and have concave cross sections, the left mounting seat is a fixed mounting seat fixedly mounted on the right side ruler body, and the right mounting seat is a sliding seat capable of translating left and right along the right side ruler body and driving the right side supporting rod to translate synchronously.
Above-mentioned rectangle groove deviation measuring apparatu, characterized by: the vertical ruler body is an indication baffle plate arranged on the right mounting seat, the indication baffle plate is a rectangular flat plate which is vertically distributed, a lower reading window for reading the scale value of the main measurement scale line is arranged on the indication baffle plate, and the lower reading window is positioned above the right deviation measurement scale line; the indicating baffle is provided with a groove bottom width indicator for indicating the scale value of the main measurement scale line, the groove bottom width indicator is positioned in the lower reading window, and the groove bottom width indicator is positioned right above the zero scale line of the right deviation measurement scale line.
Meanwhile, the invention also discloses a rectangular groove deviation measuring method which has simple steps, reasonable design, simple and convenient use and operation and good use effect, and is characterized in that the method comprises the following steps:
Step one, preparing work before measurement: according to the depth of the rectangular groove to be measured, the supporting heights of the two supporting rods are respectively adjusted, so that the transverse measuring ruler is horizontally arranged on the rectangular groove to be measured, and the two supporting rods are supported at the bottom of the rectangular groove to be measured; simultaneously, the distance between the two supporting rods is adjusted by adjusting the transverse mounting seat, so that the outer ends of the two supporting pieces are respectively supported on the bottoms of the left side wall and the right side wall of the rectangular groove to be detected; the transverse measuring ruler is a first measuring ruler;
Step two, measuring: the upper width D3 of the rectangular groove to be measured, the distance D2 between the outer side walls of the two supporting rods, the distance D4 between the upper part of the left side wall of the rectangular groove to be measured and the left side wall of the left supporting rod and the distance D5 between the upper part of the right side wall of the rectangular groove to be measured and the right side wall of the right supporting rod are respectively measured by adopting the first measuring ruler;
Step three, deviation judgment and deviation direction and deviation value determination: calculating left deviation judgment parameters s1 of the rectangular groove to be measured according to a formula s1=D4-L1; judging whether deviation exists on the left side wall of the rectangular groove to be detected or not according to the calculated s 1: when s1=0, judging that the left side wall of the rectangular groove to be detected has no deviation, and the left side wall of the rectangular groove to be detected and the bottom of the rectangular groove to be detected are vertically distributed; otherwise, judging that the left side wall of the rectangular groove to be detected has deviation, and determining the deviation direction and the deviation value of the left side wall according to the s 1: when s1 is greater than 0, the deviation direction of the left side wall of the rectangular groove to be detected is gradually inclined outwards from bottom to top, and the deviation value d1=s1 of the left side wall of the rectangular groove to be detected; when s1 is less than 0, the deviation direction of the left side wall of the rectangular groove to be detected is gradually inclined inwards from bottom to top, and the deviation value d1= |s1| of the left side wall of the rectangular groove to be detected is shown, wherein |s1| is the absolute value of s1;
Meanwhile, according to a formula s2=D5-L2, calculating a right deviation judgment parameter s2 of the rectangular groove to be detected; judging whether deviation exists on the right side wall of the rectangular groove to be detected or not according to the calculated s 2: when s2=0, judging that the right side wall of the rectangular groove to be detected has no deviation, and the right side wall of the rectangular groove to be detected and the bottom of the rectangular groove to be detected are vertically distributed; otherwise, judging that the right side wall of the rectangular groove to be detected has deviation, and determining the deviation direction and the deviation value of the right side wall according to the s 2: when s2 is more than 0, the deviation direction of the right side wall of the rectangular groove to be detected is gradually inclined outwards from bottom to top, and the deviation value d2=s2 of the right side wall of the rectangular groove to be detected; when s2 is less than 0, the deviation direction of the right side wall of the rectangular groove to be detected is gradually inclined inwards from bottom to top, and the deviation value d2= |s2| of the right side wall of the rectangular groove to be detected is the absolute value of s2.
Meanwhile, the invention also discloses a rectangular groove deviation measuring method which has the advantages of simple steps, reasonable design, simple and convenient measurement and reliable measuring result, and is characterized by comprising the following steps:
Step 101, preparation work before measurement: according to the depth of the rectangular groove to be measured, the supporting heights of the two supporting rods are respectively adjusted, so that the transverse measuring ruler is horizontally arranged on the rectangular groove to be measured, the two supporting rods are both supported at the bottom of the rectangular groove to be measured, at the moment, the left end of the transverse measuring ruler is supported above the left side of the rectangular groove to be measured, and the right mounting seat is supported above the right side of the rectangular groove to be measured; simultaneously, the distance between the two supporting rods is adjusted by adjusting the transverse mounting seat, so that the outer ends of the two supporting pieces are respectively supported on the bottoms of the left side wall and the right side wall of the rectangular groove to be detected; the transverse measuring ruler is a second measuring ruler;
Step 102, deviation measurement: measuring by using the left deviation measuring scale mark to obtain a deviation value d1 of the left side wall of the rectangular groove to be measured, wherein d1 is a scale value of the position of the upper part of the left side wall of the rectangular groove to be measured, which is read by using the left deviation measuring scale mark; judging whether deviation exists on the left side wall of the rectangular groove to be detected according to the obtained d 1: when d1=0, judging that the left side wall of the rectangular groove to be detected has no deviation, and the left side wall of the rectangular groove to be detected and the bottom of the rectangular groove to be detected are vertically distributed; otherwise, judging that the left side wall of the rectangular groove to be measured has deviation, and determining the deviation direction of the left side wall by combining the position of the zero scale mark of the main measurement scale mark: when the upper part of the left side wall of the rectangular groove to be measured is positioned at the left side of the zero scale mark of the main measurement scale mark, the deviation direction of the left side wall of the rectangular groove to be measured is gradually inclined outwards from bottom to top; when the upper part of the left side wall of the rectangular groove to be measured is positioned on the right side of the zero scale line of the main measurement scale line, the deviation direction of the left side wall of the rectangular groove to be measured is gradually inclined inwards from bottom to top;
Meanwhile, the deviation value d2 of the right side wall of the rectangular groove to be measured is obtained by using the right deviation measuring ruler, wherein d2 is a scale value of the position of the upper part of the right side wall of the rectangular groove to be measured, which is read by using the right deviation measuring scale mark; judging whether deviation exists on the right side wall of the rectangular groove to be detected or not according to the obtained d 2: when d2=0, judging that the right side wall of the rectangular groove to be detected has no deviation, and the right side wall of the rectangular groove to be detected and the bottom of the rectangular groove to be detected are vertically distributed; otherwise, judging that the right side wall of the rectangular groove to be measured has deviation, and determining the deviation direction of the right side wall by combining the position of the zero scale mark of the right deviation measurement scale mark: when the upper part of the right side wall of the rectangular groove to be measured is positioned on the right side of the zero scale mark of the right deviation measurement scale mark, the deviation direction of the right side wall of the rectangular groove to be measured is gradually inclined outwards from bottom to top; otherwise, when the upper part of the right side wall of the rectangular groove to be measured is positioned at the left side of the zero scale mark of the right deviation measurement scale mark, the deviation direction of the right side wall of the rectangular groove to be measured is gradually inclined inwards from bottom to top.
Compared with the prior art, the invention has the following advantages:
1. the rectangular groove deviation measuring instrument has the advantages of simple structure, reasonable design, simplicity and convenience in processing and manufacturing and lower input cost.
2. The rectangular groove deviation measuring instrument is easy and convenient to assemble and disassemble and convenient to store and move.
3. The rectangular groove deviation measuring instrument is simple and convenient to use and operate, flexible in use mode and good in use effect, the supporting rods are vertically arranged on two sides of the transverse measuring ruler, supporting pieces tightly propped against the bottoms of the side walls of the rectangular groove to be measured are arranged on the outer sides of the bottoms of the supporting rods, the size deviation between the tops and the bottoms of the left side wall and the right side wall of the rectangular groove can be accurately measured, the distance between the two supporting rods and the height of the transverse measuring ruler can be adjusted simply, conveniently and rapidly, the use and operation are flexible, the reliability is high, and the rectangular groove deviation measuring instrument is economical and practical and convenient to popularize and use. The rectangular groove deviation measuring instrument can be directly placed into the rectangular groove to be measured, is simple and convenient, has higher measuring precision, can effectively improve work efficiency, is convenient to operate, can lighten labor force and improve measuring efficiency, and can timely find out and correct specific errors, so that the size of the rectangular groove to be measured meets the standard requirement.
4. The rectangular groove deviation measuring instrument has wide application range, can meet the measuring requirements of rectangular grooves to be measured with different widths and different depths, can meet the measuring requirements of rectangular, parallelogram and trapezoid waiting measuring groove bodies (namely the rectangular grooves to be measured) with the cross sections, and has high practical value and economic use.
5. The adopted deviation measuring method is simple, reasonable in design, simple and convenient to use and operate, good in using effect, and capable of simply, conveniently and rapidly measuring the upper width D3 of the rectangular groove to be measured, the distance D2 between the outer side walls of the two supporting rods, whether deviation exists on the left side wall of the rectangular groove to be measured, the deviation direction and the deviation value of the left side wall when the deviation exists, whether deviation exists on the right side wall of the rectangular groove to be measured, the deviation direction and the deviation value of the right side wall when the deviation exists, and the like.
In conclusion, the device has the advantages of reasonable design, simplicity and convenience in use and operation, good use effect, high reliability, strong practicability and convenience in popularization and use, and can simply, conveniently and accurately measure the deviation between the upper ends and the bottom ends of the notches at the left side and the right side of the rectangular groove to be measured.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
Fig. 1 is a view showing the use state of the rectangular groove deviation measuring instrument in embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of a rectangular groove deviation measuring instrument in embodiment 1 of the present invention.
FIG. 3 is a schematic view of the handle of the present invention.
Fig. 4 is a flow chart of a measuring method of the rectangular slot deviation measuring instrument in embodiment 1 of the present invention.
Fig. 5 is a diagram showing the use of the rectangular groove deviation measuring apparatus according to embodiment 2 of the present invention.
Fig. 6 is an enlarged partial schematic view at a in fig. 5.
Fig. 7 is a partially enlarged schematic view at B in fig. 5.
Fig. 8 is a flow chart of a measuring method of the rectangular slot deviation measuring instrument in embodiment 2 of the present invention. Reference numerals illustrate:
1-a transverse measuring scale; 2-a supporting rod; 3-a guide seat;
4, a transverse mounting seat; 5-right-angle triangular plates; 6, a handle;
7-a rectangular groove to be measured; 8-indicating baffle; 9-measuring scale marks at the left end;
10-main measurement scale line; 11-lower reading window; 12-groove bottom width indicator;
13-upper measurement scale mark; 14-upper reading window; 15-upper indicator;
16-a bottom plate; 17-right deviation measurement scale line.
Detailed Description
Example 1
The rectangular groove deviation measuring instrument as shown in fig. 1 and 2 comprises a transverse measuring rule 1 and two supporting rods 2, wherein the transverse measuring rule 1 is horizontally arranged on a rectangular groove 7 to be measured, the supporting rods 2 are respectively supported on the left side and the right side of the transverse measuring rule 1, the two supporting rods 2 are arranged in parallel and are perpendicular to the transverse measuring rule 1, the transverse measuring rule 1 is arranged along the width direction of the rectangular groove 7 to be measured, and the bottoms of the two supporting rods 2 are supported at the bottoms of the rectangular groove 7 to be measured; the transverse measuring ruler 1 is provided with two transverse installation seats 4 for installing the supporting rods 2, the outer side of the bottom of each supporting rod 2 is provided with a supporting piece, the outer end of which is supported on the bottom of the side wall of the rectangular groove 7 to be measured, and the supporting piece is arranged in parallel with the transverse measuring ruler 1, and the outer end of the supporting piece is a supporting top end; the two supporting pieces and the two supporting rods 2 are uniformly distributed on the same plane, and the distance D1 between the supporting top ends of the two supporting pieces is the same as the width of the bottom of the rectangular groove 7 to be detected; the inner ends of the supporting pieces are fixed at the bottoms of the outer side walls of the supporting rods 2, the inner ends of the supporting pieces are fixed ends, and the distance D2 between the fixed ends of the two supporting pieces is the same as the distance between the outer side walls of the two supporting rods 2.
In practical use, the supporting heights of the transverse measuring ruler 1 on the two supporting rods 2 can be simply, conveniently and rapidly adjusted at the supporting positions of the two supporting rods 2 on the transverse measuring ruler 1 (namely, the distance between the two supporting rods 2).
The distance D1 between the supporting top ends of the two supporting top pieces is the same as the bottom width of the rectangular groove 7 to be tested, so that the bottom width of the rectangular groove 7 to be tested can be directly tested. During actual processing, the supporting members are formed by processing flat plates which are arranged in parallel with the transverse measuring ruler 1, the supporting top ends of the two supporting members are respectively supported on the left side wall bottom and the right side wall bottom of the rectangular groove 7 to be measured, the two supporting members are in line contact with the bottom of the side wall of the rectangular groove 7 to be measured, the transverse measuring ruler 1 is horizontally arranged on the rectangular groove 7 to be measured, the transverse measuring ruler 1 can be directly ensured to be arranged along the width direction of the rectangular groove 7 to be measured, and therefore the reliability of deviation measurement results of the rectangular groove 7 to be measured can be effectively ensured.
In this embodiment, the structures and dimensions of the two supporting members are the same and are symmetrically arranged. And, the lateral lengths of the two said struts are known.
In actual use, the bottom (namely the bottom) of the inner side of the rectangular groove 7 to be measured and the left and right side walls are both planes.
In this embodiment, the bottom (i.e. the bottom of the groove) of the inner side of the rectangular groove 7 to be measured is a horizontal plane, the transverse measuring ruler 1 and the two supporting members are both horizontally arranged, and the two supporting rods 2 are both vertically arranged. And, two said struts 2 are symmetrically arranged.
In this embodiment, the supporting member is a right-angle triangular plate 5, one right-angle side of the right-angle triangular plate 5 is fixed on the outer side wall of the supporting rod 2, and the other right-angle side of the right-angle triangular plate 5 is horizontally supported at the bottom of the rectangular groove 7 to be measured.
The supporting piece adopts the right-angle triangular plate 5, so that the supporting stability of the supporting rod 2 can be effectively ensured, the supporting top ends of the supporting piece can be in close line contact with the bottom of the side wall of the rectangular groove 7 to be measured, on one hand, the distance D1 between the supporting top ends of the two supporting pieces is identical to the width of the bottom of the rectangular groove 7 to be measured, on the other hand, the rectangular groove deviation measuring instrument is very convenient to arrange, and only two supporting top ends of the supporting piece are respectively supported at the bottoms of the two side walls of the rectangular groove 7 to be measured, so that the rectangular groove deviation measuring instrument can be arranged along the width direction of the rectangular groove 7 to be measured, the measuring accuracy can be ensured in advance, the operation is simple and convenient, and the measuring result is reliable.
In this embodiment, the structure and dimensions of both the struts 2 are identical.
And, both the struts 2 are rectangular flat plates (also referred to as elongated flat plates). During actual processing, the two right-angle triangular plates 5 and the two support rods 2 are uniformly distributed on the same plane, and the thicknesses of the right-angle triangular plates 5 and the support rods 2 are the same, so that the processing and manufacturing are simple and convenient, the processing precision is easy to ensure, the support is simple and convenient, and the use and the operation are convenient.
In this embodiment, each of the transverse mounting seats 4 is provided with a guide seat 3 for guiding the supporting rod 2, each supporting rod 2 is inserted into one of the guide seats 3 from bottom to top, and a guide hole for inserting the supporting rod 2 is formed in the guide seat 3.
The transverse installation seat 4 and the transverse measuring ruler 1 and the supporting rod 2 and the guide seat 3 are locked and fixed through locking pieces. Therefore, the locking piece can simply, conveniently and quickly adjust the installation position of the transverse installation seat 4 on the transverse measuring ruler 1 and the installation position of the guide seat 3 on the supporting rod 2.
As shown in fig. 2, in this embodiment, to further ensure the stability of support, a bottom plate 16 supported at the bottom of the rectangular groove 7 to be tested is mounted at the bottom of each of the two supporting rods 2, and the bottoms of the supporting rods 2 and the supporting members are both fixed on the bottom plate 16. The struts 2 and the struts are arranged perpendicular to the base plate 16.
In actual measurement, the bottom plate 16 is horizontally placed at the bottom of the rectangular groove 7 to be measured (also referred to as the inner bottom of the rectangular groove 7 to be measured), so that the support stability of the rectangular groove deviation measuring instrument can be ensured, the situation that the bottom of the rectangular groove 7 to be measured is uneven or the bottom of the rectangular groove 7 to be measured is inclined can be effectively overcome, and whether the bottom of the rectangular groove 7 to be measured is inclined can be simply and conveniently judged.
In this embodiment, the plate thickness of the bottom plate 16 is not more than 2mm.
In the actual use process, the bottom plates 16 at the bottoms of the two supporting rods 2 are supported at the bottoms of the rectangular grooves 7 to be detected, and the space between the two supporting rods 2 is adjusted through the installation positions of the two transverse installation seats 4 on the transverse measuring scale 1, so that the supporting top ends of the two supporting pieces are respectively supported at the bottoms of one side wall of the rectangular groove 7 to be detected; and adjusting the installation positions of the two guide seats 3 on the supporting rods 2 respectively, so that the transverse measuring ruler 1 is horizontally placed on the rectangular groove 7 to be measured. By measuring whether the installation positions of the two guide seats 3 on the respective installed supporting rods 2 are the same, whether the bottom of the rectangular groove 7 to be detected is inclined or not can be judged, and if and only if the installation positions of the two guide seats 3 on the respective installed supporting rods 2 are the same, the bottom of the rectangular groove 7 to be detected is not inclined.
Wherein, the transverse measuring ruler 1 is horizontally placed on the rectangular groove 7 to be measured, which means that two ends of the transverse measuring ruler 1 are respectively supported above the left and right side walls of the rectangular groove 7 to be measured.
For the convenience of installation and use operation, the guide seat 3 and the transverse installation seat 4 are fastened and connected into a whole through a connecting piece.
In this embodiment, as shown in fig. 1, the transverse measuring scale 1 is a flat plate scale that is disposed perpendicular to the rectangular groove 7 to be measured.
For the convenience of measurement, in this embodiment, two transverse mounting seats 4 and two support rods 2 are both located at the rear side of the flat ruler, and length scale marks are arranged on the front side wall of the flat ruler. The graduation unit of the length graduation line is mm.
For the convenience of measurement, the guide seat 3 is located at the rear side of the transverse mounting seat 4.
In actual use, the guide seat 3 and the transverse installation seat 4 are manufactured into a whole or are fastened and connected into a whole through a connecting piece.
In this embodiment, in order to ensure that the transverse measuring ruler 1 can be simply and stably laid on the rectangular groove 7 to be measured, the transverse measuring ruler 1 is an L-shaped flat ruler and is divided into a left ruler body and a right ruler body, the width of the left ruler body is greater than that of the right ruler body, the left ruler body and the right ruler body are arranged on the same vertical plane, and the upper surfaces of the left ruler body and the right ruler body are both rectangular ruler and are flush with each other;
the two transverse installation seats 4 are arranged on the same horizontal plane, the bottoms of the two transverse installation seats are flush, the two transverse installation seats 4 are both arranged on the right side ruler body, and the bottoms of the two transverse installation seats are flush with the bottom of the left side ruler body. In this way, the measurement accuracy can be effectively ensured, and the stability of the transverse measuring scale 1 can be further increased.
In this embodiment, the two supporting pieces are a left supporting piece and a right supporting piece located below the left side and the right side of the transverse measuring scale 1, the two supporting rods 2 are a left supporting rod and a right supporting rod supported on the left side and the right side of the transverse measuring scale 1, and the two transverse mounting seats 4 are a left mounting seat for mounting the left supporting rod and a right mounting seat for mounting the right supporting rod; the left mounting seat is tightly attached to the left ruler body.
And the left side wall of the left mounting seat is tightly attached to the right side wall of the left ruler body. For simple processing, the left ruler body and the right ruler body are processed and manufactured into a whole.
In this embodiment, as shown in fig. 2, the two transverse mounting seats 4 are both mounting seats sleeved on the right ruler body from back to front, and the cross section of each mounting seat is concave.
In this embodiment, the left mount pad is fixed mount pad that fixed mounting is in on the right side chi body, the right mount pad is for can follow the right side chi body carries out horizontal translation and drives the right side branch carries out synchronous translation's seat of sliding.
Because the guide holder 3 and the transverse installation seat 4 are fastened and connected into a whole through the connecting piece, in the embodiment, the connecting piece is a connecting bolt, and therefore a plurality of bolt installation holes for installing the connecting bolt are respectively formed in the guide holder 3 and the transverse installation seat 4. In addition, because the left mounting seat is a fixed mounting seat fixedly mounted on the right side ruler body, a plurality of bolt mounting holes for fixing the left mounting seat are formed in the right side ruler body.
The locking piece which is locked and fixed between the left mounting seat and the right ruler body is the connecting bolt. The locking piece which is locked and fixed between the right mounting seat and the right ruler body is a locking bolt which is arranged in parallel with the ruler surface of the right ruler body and is arranged along the length direction of the supporting rod 2.
In this embodiment, the guide seat 3 is a support seat disposed along the length direction of the support rod 2 and having a concave cross section. The locking piece for locking and fixing the support rod 2 and the guide seat 3 is a locking bolt which is vertically distributed with the plate surface of the support rod 2.
In this embodiment, the guide seat 3 is flush with the bottom of the transverse mounting seat 4.
In this embodiment, the handle 6 is installed at the left end of the left side ruler body, so that the transverse measuring ruler 1 can be simply, conveniently and rapidly operated, and in order to further ensure that the transverse measuring ruler 1 can be simply, conveniently and stably laid on the rectangular groove 7 to be measured, the bottom of the handle 6 is flush with the bottom of the left side ruler body.
As shown in fig. 3, the cross section of the handle 6 is in a convex shape, the handle 6 is buckled on the left ruler body from top to bottom, and a slot for inserting the left ruler body is formed in the middle of the handle 6 from bottom to top. And, the handle 6 is fastened and fixed on the left ruler body through a plurality of fixing nuts, and the front side and the rear side of the handle 6 are respectively supported above the left side of the rectangular groove 7 to be measured.
For the convenience of measurement, the supporting rod 2 is a flat ruler, and the groove depth of the rectangular groove 7 to be measured can be measured simply, conveniently and accurately through the supporting rod 2.
In this embodiment, the transverse measuring ruler 1 and the supporting rod 2 are all aluminum alloy rulers. The right-angle triangular plate 5 and the bottom plate 16 are all aluminum alloy plates, and the right-angle triangular plate 5, the supporting rod 2 and the bottom plate 16 are fixedly connected in a welding mode. The right-angle triangular plate 5 and the supporting rod 2 are processed into a whole or welded and fixed into a whole.
In actual processing, the transverse measuring ruler 1 and the supporting rod 2 can also adopt ruler bodies made of other materials.
In this embodiment, the surface of the transverse measuring ruler 1 is arranged perpendicular to the bottom of the rectangular groove 7 to be measured.
In the embodiment, the transverse length L1 of the left supporting top piece is larger than or equal to D4, and the transverse length L2 of the right supporting top piece is larger than or equal to D5. Wherein D4 is the space between the upper part of the left side wall of the rectangular groove 7 to be measured and the left side wall of the left side supporting rod, and D5 is the space between the upper part of the right side wall of the rectangular groove 7 to be measured and the right side wall of the right side supporting rod.
Before actual use, the size of the rectangular groove deviation measuring instrument is determined according to the size of the rectangular groove 7 to be measured, specifically, the values of L1 and L2 are determined according to the D4 and the D5, and the transverse length of the right-angle triangular plate 5 is correspondingly determined. In this embodiment, l1=l2.
After the use is finished, the rectangular groove deviation measuring instrument can be disassembled simply and quickly, and is simple to move and store and small in occupied space.
When in actual use, the rectangular groove deviation measuring instrument is only required to be assembled, and the assembly is simple and convenient.
When the rectangular groove deviation measuring instrument is assembled, the process is as follows:
The first step, two transverse installation seats 4 are respectively installed on the transverse measuring scale 1, and two guide seats 3 are respectively installed on the two transverse installation seats 4;
step two, mounting a handle 6 on the transverse measuring scale 1;
And thirdly, respectively disassembling and assembling the two support rods 2 (the triangular plate 5 with the right angle at the bottom and the bottom plate 16) into the two guide seats 3 from bottom to top, and locking and fixing all locking bolts (also called locking screws).
In this embodiment, the flat ruler is a first measuring ruler.
As shown in fig. 1, the lower part of the front side wall of the first measuring ruler is provided with length scale marks.
A rectangular slot deviation measuring method as shown in fig. 4, the method comprising the steps of:
Step one, preparing work before measurement: according to the depth of the rectangular groove 7 to be measured, the supporting heights of the two supporting rods 2 are respectively adjusted, so that the transverse measuring ruler 1 is horizontally placed on the rectangular groove 7 to be measured, and the two supporting rods 2 are both supported at the bottom of the rectangular groove 7 to be measured; simultaneously, the distance between the two supporting rods 2 is adjusted by adjusting the transverse mounting seat 4, so that the outer ends of the two supporting pieces are respectively supported on the bottoms of the left side wall and the right side wall of the rectangular groove 7 to be detected; the transverse measuring ruler 1 is a first measuring ruler;
Step two, measuring: the first measuring ruler is adopted to measure the upper width D3 of the rectangular groove 7 to be measured, the distance D2 between the outer side walls of the two supporting rods 2, the distance D4 between the upper part of the left side wall of the rectangular groove 7 to be measured and the left side wall of the left supporting rod, and the distance D5 between the upper part of the right side wall of the rectangular groove 7 to be measured and the right side wall of the right supporting rod;
Step three, deviation judgment and deviation direction and deviation value determination: calculating to obtain a left deviation judgment parameter s1 of the rectangular groove 7 to be measured according to a formula s1=d4-L1; judging whether deviation exists on the left side wall of the rectangular groove 7 to be detected or not according to the calculated s 1: when s1=0, judging that the left side wall of the rectangular groove 7 to be detected has no deviation, and the left side wall of the rectangular groove 7 to be detected and the bottom of the rectangular groove 7 to be detected are vertically arranged; otherwise, judging that the left side wall of the rectangular groove 7 to be detected has deviation, and determining the deviation direction and the deviation value of the left side wall according to the s 1: when s1 > 0, it is indicated that the deviation direction of the left side wall of the rectangular groove 7 to be measured is gradually inclined outwards from bottom to top, and the deviation value d1=s1 of the left side wall of the rectangular groove 7 to be measured; when s1 is less than 0, the deviation direction of the left side wall of the rectangular groove 7 to be detected is gradually inclined inwards from bottom to top, and the deviation value d1= |s1| of the left side wall of the rectangular groove 7 to be detected, wherein |s1| is the absolute value of s1;
Meanwhile, according to a formula s2=d5-L2, calculating a right deviation judgment parameter s2 of the rectangular groove 7 to be measured; judging whether deviation exists on the right side wall of the rectangular groove 7 to be detected or not according to the calculated s 2: when s2=0, judging that the right side wall of the rectangular groove 7 to be detected has no deviation, and the right side wall of the rectangular groove 7 to be detected and the bottom of the rectangular groove 7 to be detected are vertically arranged; otherwise, judging that the right side wall of the rectangular groove 7 to be detected has deviation, and determining the deviation direction and the deviation value of the right side wall according to the s 2: when s2 is greater than 0, the deviation direction of the right side wall of the rectangular groove 7 to be measured is gradually inclined outwards from bottom to top, and the deviation value d2=s2 of the right side wall of the rectangular groove 7 to be measured; when s2 is less than 0, it is indicated that the deviation direction of the right side wall of the rectangular groove 7 to be measured is gradually inclined inwards from bottom to top, and the deviation value d2= |s2| of the right side wall of the rectangular groove 7 to be measured is the absolute value of s 2.
Therefore, by adopting the measuring method shown in fig. 4, the width D3 of the upper portion of the rectangular groove 7 to be measured, the distance D2 between the outer side walls of the two struts 2, the distance D4 between the upper portion of the left side wall of the rectangular groove 7 to be measured and the left side wall of the left strut, the distance D5 between the upper portion of the right side wall of the rectangular groove 7 to be measured and the right side wall of the right strut, the deviation direction and the deviation value of the left side wall when the left side wall of the rectangular groove 7 to be measured has a deviation, the deviation direction and the deviation value of the right side wall when the right side wall of the rectangular groove 7 to be measured has a deviation, and the like can be measured simply, accurately and rapidly.
In the embodiment, before the preparation work before the measurement in the first step, the locking bolts required by the rectangular groove deviation measuring instrument are unscrewed; after the preparation work before the measurement is completed, the locking bolts required by the rectangular groove deviation measuring instrument are locked and fixed, the rectangular groove deviation measuring instrument is stably arranged in the rectangular groove 7 to be measured, and the bottoms of the front side and the rear side of the handle 6 are in close surface contact with the upper part of the left side wall of the rectangular groove 7 to be measured.
In this embodiment, after the preparation work before the measurement is completed in the first step, the upper parts of the rectangular grooves 7 to be measured are all located in the measuring range of the first measuring scale.
In the embodiment, after the deviation determination and the determination of the deviation direction and the deviation value in the third step are completed, the bottom width D1 of the rectangular groove 7 to be measured is calculated according to the formula d1=d2+l1+l2.
From the above, two supporting rods 2 perpendicular to the transverse measuring ruler 1 are symmetrically arranged on the transverse measuring ruler 1, and the rectangular groove deviation measuring instrument is directly placed into the rectangular groove 7 to be measured in the measuring process, so that the measuring method is simple and convenient, the measuring precision is high, the work efficiency can be effectively improved, the operation is convenient, the labor intensity can be effectively reduced, and the measuring efficiency can be improved.
During actual use, through all being provided with a top piece that outer end propped up in the bottom of the lateral wall of the rectangular channel 7 that awaits measuring in the bottom outside of every branch 2 for interval D1 between the top of two top pieces is the same with the bottom width of the rectangular channel 7 that awaits measuring, and the top width (also referred to as upper portion width) D3 of the rectangular channel 7 that awaits measuring accessible transverse measuring scale 1 directly measures. During measurement, the transverse measuring ruler 1 is placed on the rectangular groove 7 to be measured, the supporting rod 2 stretches into the bottom of the rectangular groove 7 to be measured, the supporting piece on the outer side of the supporting rod 2 is tightly propped against the bottom of the side wall of the rectangular groove 7 to be measured, and the dimensional deviation between the top and the bottom of the left side wall and the right side wall of the rectangular groove 7 to be measured can be accurately measured, so that the dimensional deviation can be corrected in time, and the standard requirement can be met.
Example 2
As shown in fig. 5, 6 and 7, in the present embodiment, the rectangular groove deviation measuring instrument employed is different from embodiment 1 in that: the flat ruler is a second measuring ruler;
The lower part of the front side wall of the second measuring ruler is provided with a left end measuring scale mark 9 and a main measuring scale mark 10, the left end measuring scale mark 9 and the main measuring scale mark 10 are length scale marks, and zero scale marks of the left end measuring scale mark 9 and the main measuring scale mark 10 are overlapped, as shown in fig. 6; the left end measuring scale mark 9 is positioned at the lower part of the left end of the second measuring ruler, the main measuring scale mark 10 is positioned at the right side of the left end measuring scale mark 9, the scale value of the main measuring scale mark 10 is gradually increased from left to right, and the scale value of the left end measuring scale mark 9 is gradually increased from right to left; the zero graduation line of the main measurement graduation line 10 is positioned at the left side of the left side supporting rod, and the interval between the zero graduation line of the main measurement graduation line 10 and the left side wall of the left side supporting rod is the same as the transverse length L1 of the left supporting rod top piece; all scale marks positioned on the left side of the left side supporting rod in the left end measuring scale mark 9 and the main measuring scale mark 10 form a left deviation measuring scale mark for measuring the left deviation d1 of the rectangular groove 7 to be measured, wherein d1 is a deviation value of the left side wall of the rectangular groove 7 to be measured, and d1 is a distance between the bottom and the upper part of the left side wall of the rectangular groove 7 to be measured;
As shown in fig. 7, a right deviation measuring scale for measuring a right deviation d2 of the rectangular groove 7 to be measured is mounted on the right mounting seat, the right deviation measuring scale comprises a vertical scale body which is arranged in parallel with the second measuring scale, the vertical scale body is positioned at the front side of the second measuring scale and is provided with a right deviation measuring scale line 17 for measuring d2, wherein d2 is a deviation value of a right side wall of the rectangular groove 7 to be measured, and d2 is a distance between the bottom and the upper part of the right side wall of the rectangular groove 7 to be measured; the area where the right deviation measurement scale mark 17 is located on the vertical scale body is a scale area, a zero scale mark of the right deviation measurement scale mark 17 is located in the middle of the scale area, and the distance between the zero scale mark of the right deviation measurement scale mark 17 and the right side wall of the right support rod is the same as the transverse length L2 of the right support top piece; the scale value of the scale line positioned on the left side of the zero scale line in the scale zone is gradually increased from right to left, and the scale value of the scale line positioned on the right side of the zero scale line in the scale zone is gradually increased from left to right;
The bottom of the vertical ruler body is flush with the bottom of the left ruler body.
The scale units of the left end measuring scale line 9, the main measuring scale line 10 and the right side deviation measuring scale line 17 are all mm.
In this embodiment, as shown in fig. 7, for further measurement simplicity and convenience, the vertical ruler body is an indication baffle plate 8 mounted on the right mounting seat, the indication baffle plate 8 is a rectangular flat plate vertically arranged, a lower reading window 11 for reading the scale value of the main measurement scale line 10 is opened on the indication baffle plate 8, and the lower reading window 11 is located above the right deviation measurement scale line 17; the indicating baffle 8 is provided with a groove bottom width indicator 12 for indicating the scale value of the main measuring scale line 10, the groove bottom width indicator 12 is positioned in the lower reading window 11, and the groove bottom width indicator 12 is positioned right above the zero scale line of the right deviation measuring scale line 17.
In actual use, the scale value of the main measurement scale line 10 indicated by the groove bottom width indicator 12 is the bottom width D1 of the rectangular groove 7 to be measured.
In this embodiment, an upper measurement scale line 13 for measuring D2 is disposed on the upper portion of the front side wall of the second measuring scale, a zero scale line of the upper measurement scale line 13 coincides with the left side wall of the left side supporting rod, and scale values of the upper measurement scale line 13 gradually increase from left to right; an upper reading window 14 for reading the scale value of the upper measurement scale line 13 is arranged on the indication baffle plate 8, and the upper reading window 14 is positioned above the lower reading window 11; an upper indicator 15 for indicating the scale value of the upper measurement scale line 13 is arranged on the indicating baffle 8, the upper indicator 15 is positioned in the upper reading window 14, and the upper indicator 15 is positioned right in front of the right side wall of the right side supporting rod.
In actual use, the scale value of the upper measurement scale line 13 indicated by the upper indicator 15 is the distance D2 between the outer side walls of the two struts 2.
In this embodiment, the structure, connection relation, and disassembly and assembly methods of the remaining parts of the rectangular groove deviation measuring apparatus are the same as those of embodiment 1.
A rectangular slot deviation measuring method as shown in fig. 8, the method comprising the steps of:
Step 101, preparation work before measurement: according to the depth of the rectangular groove 7 to be measured, the supporting heights of the two supporting rods 2 are respectively adjusted, so that the transverse measuring ruler 1 is horizontally placed on the rectangular groove 7 to be measured, the two supporting rods 2 are both supported at the bottom of the rectangular groove 7 to be measured, at the moment, the left end of the transverse measuring ruler 1 is supported above the left side of the rectangular groove 7 to be measured, and the right mounting seat is supported above the right side of the rectangular groove 7 to be measured; simultaneously, the distance between the two supporting rods 2 is adjusted by adjusting the transverse mounting seat 4, so that the outer ends of the two supporting pieces are respectively supported on the bottoms of the left side wall and the right side wall of the rectangular groove 7 to be detected; the transverse measuring ruler 1 is a second measuring ruler;
Step 102, deviation measurement: measuring by using the left deviation measuring scale mark to obtain a deviation value d1 of the left side wall of the rectangular groove 7 to be measured, wherein d1 is a scale value of the position of the upper part of the left side wall of the rectangular groove 7 to be measured, which is read by using the left deviation measuring scale mark; judging whether deviation exists on the left side wall of the rectangular groove 7 to be detected according to the obtained d 1: when d1=0, judging that the left side wall of the rectangular groove 7 to be detected has no deviation, and the left side wall of the rectangular groove 7 to be detected and the bottom of the rectangular groove 7 to be detected are vertically distributed; otherwise, judging that the left side wall of the rectangular groove 7 to be measured has deviation, and determining the deviation direction of the left side wall by combining the position of the zero scale line of the main measurement scale line 10: when the upper part of the left side wall of the rectangular groove 7 to be measured is positioned at the left side of the zero scale line of the main measuring scale line 10, the deviation direction of the left side wall of the rectangular groove 7 to be measured is gradually inclined outwards from bottom to top; when the upper part of the left side wall of the rectangular groove 7 to be measured is positioned on the right side of the zero scale line of the main measurement scale line 10, the deviation direction of the left side wall of the rectangular groove 7 to be measured is gradually inclined inwards from bottom to top;
Meanwhile, the deviation value d2 of the right side wall of the rectangular groove 7 to be measured is obtained by using the right deviation measuring ruler, wherein d2 is a scale value of the position of the upper part of the right side wall of the rectangular groove 7 to be measured, which is read by using the right deviation measuring scale mark 17; judging whether deviation exists on the right side wall of the rectangular groove 7 to be detected according to the obtained d 2: when d2=0, judging that the right side wall of the rectangular groove 7 to be detected has no deviation, and the right side wall of the rectangular groove 7 to be detected and the bottom of the rectangular groove 7 to be detected are vertically distributed; otherwise, judging that the right side wall of the rectangular groove 7 to be measured has deviation, and determining the deviation direction of the right side wall by combining the position of the zero scale line of the right deviation measurement scale line 17: when the upper part of the right side wall of the rectangular groove 7 to be measured is positioned on the right side of the zero scale mark of the right deviation measurement scale mark 17, the deviation direction of the right side wall of the rectangular groove 7 to be measured is gradually inclined outwards from bottom to top; otherwise, when the upper part of the right side wall of the rectangular groove 7 to be measured is positioned at the left side of the zero scale line of the right deviation measurement scale line 17, the deviation direction of the right side wall of the rectangular groove 7 to be measured is gradually inclined inwards from bottom to top.
In this embodiment, when the deviation is measured in step 102, the bottom width D1 of the rectangular groove 7 to be measured is also measured by using the main measurement scale mark 10, where D1 is the scale value of the position where the groove bottom width indicator 12 is located, which is read by using the main measurement scale mark 10.
The upper width D3 of the rectangular groove 7 to be measured can be simply, conveniently and quickly measured by using the left end measuring scale line 9 and the main measuring scale line 10.
When the bottom width D1 of the rectangular groove 7 to be measured is actually determined, the distance D2 between the outer side walls of the two supporting rods 2 can be measured by using the upper measuring scale mark 13, wherein D2 is a scale value at the position of the upper indicator 15 read by using the upper measuring scale mark 13; and calculating the bottom width D1 of the rectangular groove 7 to be measured according to the formula d1=d2+l1+l2.
Therefore, by adopting the measuring method shown in fig. 8, the width D3 of the upper portion of the rectangular groove 7 to be measured, the distance D2 between the outer side walls of the two struts 2, the distance D4 between the upper portion of the left side wall of the rectangular groove 7 to be measured and the left side wall of the left strut, the distance D5 between the upper portion of the right side wall of the rectangular groove 7 to be measured and the right side wall of the right strut, whether the left side wall of the rectangular groove 7 to be measured has deviation, the deviation direction of the left side wall and the deviation value D1 when the deviation exists, whether the right side wall of the rectangular groove 7 to be measured has deviation, the deviation direction of the right side wall and the deviation value D2 when the deviation exists, and the like can be simply, accurately and quickly measured, the D1, D2, D1 and D2 can be directly read, the measuring result is reliable, and the deviation directions of the two side walls of the rectangular groove 7 to be measured can be directly judged.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any simple modification, variation and equivalent structural changes made to the above embodiment according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.

Claims (5)

1. A rectangular groove deviation measuring method is characterized in that: the device adopted by the method is a rectangular groove deviation measuring instrument, the rectangular groove deviation measuring instrument comprises a transverse measuring ruler (1) horizontally arranged on a rectangular groove (7) to be measured and two supporting rods (2) respectively supported on the left side and the right side of the transverse measuring ruler (1), the two supporting rods (2) are arranged in parallel and are perpendicular to the transverse measuring ruler (1), the transverse measuring ruler (1) is arranged along the width direction of the rectangular groove (7) to be measured, and the bottoms of the two supporting rods (2) are both supported at the bottom of the rectangular groove (7) to be measured; two transverse installation seats (4) for installing the supporting rods (2) are arranged on the transverse measuring ruler (1), a supporting piece with the outer end propped against the bottom of the side wall of the rectangular groove (7) to be measured is arranged on the outer side of the bottom of each supporting rod (2), and the supporting piece is arranged in parallel with the transverse measuring ruler (1) and the outer end of the supporting piece is a supporting top end; the two supporting pieces and the two supporting rods (2) are uniformly distributed on the same plane, and the distance D1 between the supporting top ends of the two supporting pieces is the same as the width of the bottom of the rectangular groove (7) to be detected; the inner ends of the supporting pieces are fixed at the bottoms of the outer side walls of the supporting rods (2), the inner ends of the supporting pieces are fixed ends, and the distance D2 between the fixed ends of the two supporting pieces is the same as the distance between the outer side walls of the two supporting rods (2);
The transverse measuring ruler (1) is a flat ruler which is vertically arranged with the rectangular groove (7) to be measured, the two transverse installation seats (4) and the two supporting rods (2) are positioned at the rear side of the flat ruler, and length scale marks are arranged on the front side wall of the flat ruler;
The transverse measuring ruler (1) is an L-shaped flat ruler and is divided into a left ruler body and a right ruler body, the width of the left ruler body is larger than that of the right ruler body, the left ruler body and the right ruler body are arranged on the same vertical surface, the left ruler body and the right ruler body are rectangular ruler, and the upper surfaces of the left ruler body and the right ruler body are flush;
the two transverse installation seats (4) are arranged on the same horizontal plane, the bottoms of the two transverse installation seats are flush, the two transverse installation seats (4) are both arranged on the right side ruler body, and the bottoms of the two transverse installation seats are flush with the bottom of the left side ruler body;
The flat ruler is a first measuring ruler;
the lower part of the front side wall of the first measuring ruler is provided with length scale marks;
The two supporting pieces are respectively a left supporting piece and a right supporting piece which are positioned below the left side and the right side of the transverse measuring scale (1), the two supporting rods (2) are respectively a left supporting rod and a right supporting rod which are supported on the left side and the right side of the transverse measuring scale (1), and the two transverse mounting seats (4) are respectively a left mounting seat for mounting the left supporting rod and a right mounting seat for mounting the right supporting rod; the left mounting seat is tightly attached to the left ruler body;
The supporting piece is a right-angle triangular plate (5), one right-angle side of the right-angle triangular plate (5) is fixed on the outer side wall of the supporting rod (2), and the other right-angle side of the right-angle triangular plate (5) is horizontally supported at the bottom of the rectangular groove (7) to be detected;
the method comprises the following steps:
Step one, preparing work before measurement: according to the depth of the rectangular groove (7) to be measured, the supporting heights of the two supporting rods (2) are respectively adjusted, so that the transverse measuring ruler (1) is horizontally arranged on the rectangular groove (7) to be measured, and the two supporting rods (2) are both supported at the bottom of the rectangular groove (7) to be measured; simultaneously, the distance between the two supporting rods (2) is adjusted by adjusting the transverse mounting seat (4), so that the outer ends of the two supporting pieces are respectively supported on the bottoms of the left side wall and the right side wall of the rectangular groove (7) to be detected; the transverse measuring ruler (1) is a first measuring ruler;
Step two, measuring: the upper width D3 of the rectangular groove (7) to be measured, the distance D2 between the outer side walls of the two supporting rods (2), the distance D4 between the upper part of the left side wall of the rectangular groove (7) to be measured and the left side wall of the left supporting rod and the distance D5 between the upper part of the right side wall of the rectangular groove (7) to be measured and the right side wall of the right supporting rod are respectively measured by adopting the first measuring ruler;
Step three, deviation judgment and deviation direction and deviation value determination: calculating left deviation judgment parameters s1 of the rectangular groove (7) to be detected according to a formula s1=D4-L1; judging whether deviation exists on the left side wall of the rectangular groove (7) to be detected or not according to the calculated s 1: when s1=0, judging that the left side wall of the rectangular groove (7) to be detected has no deviation, and the left side wall of the rectangular groove (7) to be detected and the bottom of the rectangular groove (7) to be detected are vertically distributed; otherwise, judging that the left side wall of the rectangular groove (7) to be detected has deviation, and determining the deviation direction and the deviation value of the left side wall according to the s 1: when s1 is more than 0, the deviation direction of the left side wall of the rectangular groove (7) to be detected is gradually inclined outwards from bottom to top, and the deviation value d1=s1 of the left side wall of the rectangular groove (7) to be detected; when s1 is less than 0, the deviation direction of the left side wall of the rectangular groove (7) to be detected is gradually inclined inwards from bottom to top, and the deviation value d1= |s1| of the left side wall of the rectangular groove (7) to be detected is shown, wherein |s1| is the absolute value of s1;
Meanwhile, according to a formula s2=D5-L2, calculating a right deviation judgment parameter s2 of the rectangular groove (7) to be detected; judging whether deviation exists on the right side wall of the rectangular groove (7) to be detected or not according to the calculated s 2: when s2=0, judging that the right side wall of the rectangular groove (7) to be detected has no deviation, and the right side wall of the rectangular groove (7) to be detected and the bottom of the rectangular groove (7) to be detected are vertically distributed; otherwise, judging that the right side wall of the rectangular groove (7) to be detected has deviation, and determining the deviation direction and the deviation value of the right side wall according to the s 2: when s2 is more than 0, the deviation direction of the right side wall of the rectangular groove (7) to be detected is gradually inclined outwards from bottom to top, and the deviation value d2=s2 of the right side wall of the rectangular groove (7) to be detected; when s2 is less than 0, the deviation direction of the right side wall of the rectangular groove (7) to be detected is gradually inclined inwards from bottom to top, and the deviation value d2= |s2| of the right side wall of the rectangular groove (7) to be detected is the absolute value of s 2.
2. A rectangular slot deviation measuring method as claimed in claim 1, wherein: the structure and the size of the two supporting pieces are the same and are symmetrically distributed, the supporting pieces are right-angle triangular plates (5), one right-angle side of each right-angle triangular plate (5) is fixed on the outer side wall of each supporting rod (2), and the other right-angle side of each right-angle triangular plate (5) is horizontally supported at the bottom of each rectangular groove (7) to be detected; the structure and the size of the two supporting rods (2) are the same.
3. A rectangular slot deviation measuring method as claimed in claim 1 or 2, characterized in that: each transverse mounting seat (4) is provided with a guide seat (3) for guiding the supporting rod (2), each supporting rod (2) is inserted into one guide seat (3) from bottom to top, and a guide hole for the supporting rod (2) to be inserted is formed in each guide seat (3); the transverse installation seat (4) and the transverse measuring ruler (1) and the supporting rod (2) and the guide seat (3) are locked and fixed through locking pieces.
4. A rectangular slot deviation measuring method as claimed in claim 1, wherein: the two transverse mounting seats (4) are mounting seats which are sleeved on the right side ruler body from back to front and have concave cross sections, the left mounting seat is a fixed mounting seat fixedly mounted on the right side ruler body, and the right mounting seat is a sliding seat capable of translating left and right along the right side ruler body and driving the right side supporting rod to translate synchronously.
5. A rectangular groove deviation measuring method is characterized in that: the device adopted by the method is a rectangular groove deviation measuring instrument, the rectangular groove deviation measuring instrument comprises a transverse measuring ruler (1) horizontally arranged on a rectangular groove (7) to be measured and two supporting rods (2) respectively supported on the left side and the right side of the transverse measuring ruler (1), the two supporting rods (2) are arranged in parallel and are perpendicular to the transverse measuring ruler (1), the transverse measuring ruler (1) is arranged along the width direction of the rectangular groove (7) to be measured, and the bottoms of the two supporting rods (2) are both supported at the bottom of the rectangular groove (7) to be measured; two transverse installation seats (4) for installing the supporting rods (2) are arranged on the transverse measuring ruler (1), a supporting piece with the outer end propped against the bottom of the side wall of the rectangular groove (7) to be measured is arranged on the outer side of the bottom of each supporting rod (2), and the supporting piece is arranged in parallel with the transverse measuring ruler (1) and the outer end of the supporting piece is a supporting top end; the two supporting pieces and the two supporting rods (2) are uniformly distributed on the same plane, and the distance D1 between the supporting top ends of the two supporting pieces is the same as the width of the bottom of the rectangular groove (7) to be detected; the inner ends of the supporting pieces are fixed at the bottoms of the outer side walls of the supporting rods (2), the inner ends of the supporting pieces are fixed ends, and the distance D2 between the fixed ends of the two supporting pieces is the same as the distance between the outer side walls of the two supporting rods (2);
The transverse measuring ruler (1) is a flat ruler which is vertically arranged with the rectangular groove (7) to be measured, the two transverse installation seats (4) and the two supporting rods (2) are positioned at the rear side of the flat ruler, and length scale marks are arranged on the front side wall of the flat ruler;
The transverse measuring ruler (1) is an L-shaped flat ruler and is divided into a left ruler body and a right ruler body, the width of the left ruler body is larger than that of the right ruler body, the left ruler body and the right ruler body are arranged on the same vertical surface, the left ruler body and the right ruler body are rectangular ruler, and the upper surfaces of the left ruler body and the right ruler body are flush;
the two transverse installation seats (4) are arranged on the same horizontal plane, the bottoms of the two transverse installation seats are flush, the two transverse installation seats (4) are both arranged on the right side ruler body, and the bottoms of the two transverse installation seats are flush with the bottom of the left side ruler body;
The two supporting pieces are respectively a left supporting piece and a right supporting piece which are positioned below the left side and the right side of the transverse measuring scale (1), the two supporting rods (2) are respectively a left supporting rod and a right supporting rod which are supported on the left side and the right side of the transverse measuring scale (1), and the two transverse mounting seats (4) are respectively a left mounting seat for mounting the left supporting rod and a right mounting seat for mounting the right supporting rod;
The flat ruler is a second measuring ruler;
The lower part of the front side wall of the second measuring ruler is provided with a left end measuring scale mark (9) and a main measuring scale mark (10), wherein the left end measuring scale mark (9) and the main measuring scale mark (10) are length scale marks and zero scale marks of the left end measuring scale mark and the main measuring scale mark (10) are overlapped; the left end measuring scale mark (9) is positioned at the lower part of the left end of the second measuring ruler, the main measuring scale mark (10) is positioned at the right side of the left end measuring scale mark (9), the scale value of the main measuring scale mark (10) is gradually increased from left to right, and the scale value of the left end measuring scale mark (9) is gradually increased from right to left; the zero graduation line of the main measurement graduation line (10) is positioned at the left side of the left side supporting rod, and the distance between the zero graduation line of the main measurement graduation line (10) and the left side wall of the left side supporting rod is the same as the transverse length L1 of the left supporting rod top piece; all scale marks positioned on the left side of the left side supporting rod in the left end measuring scale mark (9) and the main measuring scale mark (10) form a left deviation measuring scale mark for measuring left deviation d1 of the rectangular groove (7) to be measured, wherein d1 is a deviation value of the left side wall of the rectangular groove (7) to be measured, and d1 is a distance between the bottom and the upper part of the left side wall of the rectangular groove (7) to be measured;
the right mounting seat is provided with a right deviation measuring ruler for measuring the right deviation d2 of the rectangular groove (7) to be measured, the right deviation measuring ruler comprises a vertical ruler body which is arranged in parallel with the second measuring ruler, the vertical ruler body is positioned at the front side of the second measuring ruler and is provided with a right deviation measuring scale mark (17) for measuring the d2, d2 is a deviation value of the right side wall of the rectangular groove (7) to be measured, and d2 is a distance between the bottom and the upper part of the right side wall of the rectangular groove (7) to be measured; the area where the right deviation measurement scale mark (17) is positioned on the vertical scale body is a scale area, a zero scale mark of the right deviation measurement scale mark (17) is positioned in the middle of the scale area, and the distance between the zero scale mark of the right deviation measurement scale mark (17) and the right side wall of the right support rod is the same as the transverse length L2 of the right support top piece; the scale value of the scale line positioned on the left side of the zero scale line in the scale zone is gradually increased from right to left, and the scale value of the scale line positioned on the right side of the zero scale line in the scale zone is gradually increased from left to right;
the bottom of the vertical ruler body is flush with the bottom of the left ruler body;
The vertical ruler body is an indication baffle plate (8) arranged on the right mounting seat, the indication baffle plate (8) is a rectangular flat plate which is vertically distributed, a lower reading window (11) for reading scale values of a main measurement scale line (10) is formed in the indication baffle plate (8), and the lower reading window (11) is positioned above the right deviation measurement scale line (17); the indicating baffle (8) is provided with a groove bottom width indicator (12) for indicating the scale value of the main measuring scale line (10), the groove bottom width indicator (12) is positioned in the lower reading window (11), and the groove bottom width indicator (12) is positioned right above the zero scale line of the right deviation measuring scale line (17);
The supporting piece is a right-angle triangular plate (5), one right-angle side of the right-angle triangular plate (5) is fixed on the outer side wall of the supporting rod (2), and the other right-angle side of the right-angle triangular plate (5) is horizontally supported at the bottom of the rectangular groove (7) to be detected;
the method comprises the following steps:
Step 101, preparation work before measurement: according to the depth of the rectangular groove (7) to be measured, the supporting heights of the two supporting rods (2) are respectively adjusted, so that the transverse measuring ruler (1) is horizontally arranged on the rectangular groove (7) to be measured, the two supporting rods (2) are both supported at the bottom of the rectangular groove (7) to be measured, at the moment, the left end of the transverse measuring ruler (1) is supported above the left side of the rectangular groove (7) to be measured, and the right mounting seat is supported above the right side of the rectangular groove (7) to be measured; simultaneously, the distance between the two supporting rods (2) is adjusted by adjusting the transverse mounting seat (4), so that the outer ends of the two supporting pieces are respectively supported on the bottoms of the left side wall and the right side wall of the rectangular groove (7) to be detected; the transverse measuring ruler (1) is a second measuring ruler;
Step 102, deviation measurement: measuring by using the left deviation measuring scale mark to obtain a deviation value d1 of the left side wall of the rectangular groove (7) to be measured, wherein d1 is a scale value of the position of the upper part of the left side wall of the rectangular groove (7) to be measured, which is read by using the left deviation measuring scale mark; judging whether deviation exists on the left side wall of the rectangular groove (7) to be detected according to the obtained d 1: when d1=0, judging that the left side wall of the rectangular groove (7) to be detected has no deviation, and the left side wall of the rectangular groove (7) to be detected and the bottom of the rectangular groove (7) to be detected are vertically distributed; otherwise, judging that the left side wall of the rectangular groove (7) to be measured has deviation, and determining the deviation direction of the left side wall by combining the position of the zero scale line of the main measurement scale line (10): when the upper part of the left side wall of the rectangular groove (7) to be measured is positioned at the left side of the zero scale line of the main measuring scale line (10), the deviation direction of the left side wall of the rectangular groove (7) to be measured is gradually inclined outwards from bottom to top; when the upper part of the left side wall of the rectangular groove (7) to be measured is positioned on the right side of the zero scale line of the main measuring scale line (10), the deviation direction of the left side wall of the rectangular groove (7) to be measured is gradually inclined inwards from bottom to top;
Meanwhile, the deviation value d2 of the right side wall of the rectangular groove (7) to be measured is measured by using the right deviation measuring ruler, wherein d2 is a scale value of the position of the upper part of the right side wall of the rectangular groove (7) to be measured, which is read by using the right deviation measuring scale mark (17); judging whether deviation exists on the right side wall of the rectangular groove (7) to be detected according to the obtained d 2: when d2=0, judging that the right side wall of the rectangular groove (7) to be detected has no deviation, and the right side wall of the rectangular groove (7) to be detected and the bottom of the rectangular groove (7) to be detected are vertically distributed; otherwise, judging that the right side wall of the rectangular groove (7) to be measured has deviation, and determining the deviation direction of the right side wall by combining the position of the zero scale mark of the right deviation measurement scale mark (17): when the upper part of the right side wall of the rectangular groove (7) to be measured is positioned on the right side of the zero scale mark of the right deviation measurement scale mark (17), the deviation direction of the right side wall of the rectangular groove (7) to be measured is gradually inclined outwards from bottom to top; otherwise, when the upper part of the right side wall of the rectangular groove (7) to be measured is positioned at the left side of the zero scale line of the right deviation measurement scale line (17), the deviation direction of the right side wall of the rectangular groove (7) to be measured is gradually inclined inwards from bottom to top.
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CN111561165A (en) * 2020-04-30 2020-08-21 中国五冶集团有限公司 Movable formwork groove positioner
CN113413228B (en) * 2021-05-21 2023-11-10 惠州市口腔医院有限公司 Tooth-dividing depth measuring device

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