CN213631928U - Profile tolerance measuring tool - Google Patents

Abstract

The utility model discloses an utensil is surveyed to profile tolerance, including surveying the utensil base, survey utensil base upper surface both sides fixed mounting and have the locating pin, survey utensil base upper surface both sides all install through the locating pin and be the angle each other, and two locating pieces of symmetry, two locating pieces are inboard detachable of angle and install standard component or surveyed the part, survey utensil base upper surface, and two locating pieces are one side fixed mounting of the inboard orientation of angle has the supporting shoe, and this supporting shoe center is located two locating piece symmetry lines, the supporting shoe has the screw hole with the coincidence of symmetry line, this screw hole threaded connection has the holding pin, the head of a nail end of holding pin is kept away from standard component and is stretched out the supporting shoe, the other end can withstand standard component or surveyed the part. The utility model discloses can carry out quick assembly, use more convenient, through comparing standard component and detection station, can realize measuring the standard component fast, improve work efficiency.

Description

Profile tolerance measuring tool

Technical Field

The utility model relates to a measuring equipment technical field specifically is a profile tolerance measuring tool.

Background

The main index for describing the dimensional accuracy of the curved surface is the profile tolerance error, which refers to the variation of the measured actual profile relative to the ideal profile. May or may not be referenced; a three-coordinate measuring machine is an instrument capable of expressing measuring capabilities such as geometric shapes, lengths, circumferential graduation and the like in a hexahedral space range, and is also called as a three-coordinate measuring machine or a three-coordinate scalar bed. A coordinate measuring machine can be defined as "an instrument having a three-axis displacement measuring system (e.g. optical ruler) which calculates coordinates (X, Y, Z) of each point of a workpiece and measures each function thereof by a data processor or a computer, and a three-direction movable probe which is movable on three mutually perpendicular guide rails and transmits signals in a contact or non-contact manner". The measurement functions of the three-coordinate measuring instrument include dimensional accuracy, positioning accuracy, geometric accuracy, contour accuracy and the like.

However, the existing profilometry has the following disadvantages:

the existing profile tolerance measuring tool is inconvenient to rapidly assemble in the using process, and meanwhile, when a standard part is measured, the standard of the measured part is not a conventional straight line or plane, the conventional method is difficult to measure, three-coordinate measurement is needed, the three-coordinate measurement efficiency is extremely low, and the cost is very high because the part is large in quantity and cannot be subjected to selective inspection, and the measurement requirement cannot be met within a specified time.

Disclosure of Invention

An object of the utility model is to provide an utensil is surveyed to profile degree to in solving above-mentioned background art, the inconvenient assembly that carries out fast to surveying the utensil of utensil is surveyed to current profile degree survey utensil in the use, when measuring standard component simultaneously, because the benchmark of being surveyed the part is not conventional straight line or plane, the difficulty is measured to conventional method, need measure with the help of the three-coordinate, three-coordinate measurement efficiency is extremely low, because this part is in large quantity, and can not the selective examination, can not satisfy the measurement requirement in the stipulated time, very high problem of cost.

In order to achieve the above object, the utility model provides a profile tolerance measuring tool, including measuring tool base 1, wherein:

positioning pins 7 are fixedly arranged on two sides of the upper surface of the measuring tool base 1,

two symmetrical positioning blocks 2 which are mutually in an angle are arranged on both sides of the upper surface of the measuring tool base 1 through positioning pins 7,

the inner sides of the two positioning blocks 2 which form an angle are detachably provided with standard components 8 or tested parts,

a supporting block 3 is fixedly arranged on the upper surface of the measuring tool base 1 and on one side of the two positioning blocks 2 which is in the angle and faces the inner side, the center of the supporting block 3 is positioned on the symmetrical line of the two positioning blocks 2,

the supporting block 3 is provided with a threaded hole coincident with the symmetry line, the threaded hole is in threaded connection with a compression nail 4, the head end of the compression nail 4 is far away from the standard part 8 and extends out of the supporting block 3, and the other end of the compression nail 4 can prop against the standard part 8 or a part to be measured.

Optionally, the positioning block 2 is fixed to the base 1 by a screw 6.

Optionally, two side edges of the measuring tool base 1 close to the two positioning blocks 2 form two measuring tool benchmarks, and the two side edges are parallel to the inner sides of the two positioning blocks 2 which are in an angle.

The utility model provides a profile tolerance measuring tool possesses following beneficial effect:

(1) the utility model discloses it has the locating pin to survey utensil base upper surface both sides fixed mounting, it all installs the locating piece through the locating pin to survey utensil base upper surface both sides, locating piece inner chamber detachable installs the standard component, it has the supporting shoe to survey utensil base upper surface one side fixed mounting, and the supporting shoe is located standard component one side, the equal threaded connection in locating piece both ends has M5 screw, it has the holding-down pin to peg graft in the activity of supporting shoe inner chamber, and holding-down pin and standard component mutually support, can promote the installation accuracy to the locating piece through the locating pin, can carry out quick installation fixed to the locating piece through rotatory M screw simultaneously, can carry out quick assembly to the profile survey utensil, it is more.

(2) The utility model discloses to survey the utensil and arrange in flatness 0.005 mm's platform on, and prepare two percentage tables, use two respectively and survey the utensil benchmark, in the embodiment measurement benchmark B, measurement benchmark C pastes tight platform, two by survey limit percentage table readings of calibration standard block should be within +/-0.001, later use the standard part replacement standard block, screw and compress tightly the nail, let the briquetting compress tightly the standard part, make the standard part both sides hug closely the locating piece, use and survey utensil benchmark B and percentage table measurement size, use and survey utensil benchmark C and percentage table measurement size, percentage table reading +/-0.004 is for being qualified promptly, through comparing standard part and detection station, can realize measuring the standard part fast, solve the not enough problem of three-coordinate productivity, and improve work efficiency, realize mass production, guarantee product quality.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;

fig. 3 is a schematic structural diagram of the standard component of the present invention.

In the figure: 1. a measuring tool base; 2. positioning blocks; 3. a support block; 4. pressing nails; 5. briquetting; 6. a screw; 7. positioning pins; 8. a standard component; 10. a measuring tool reference B; 11. and (5) measuring a reference C.

Detailed Description

In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.

In the description that follows, reference is made to the terms "first \ second \ third, etc. or module a, module B, module C, etc. merely for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order, it being understood that specific orders or sequences may be interchanged if permitted to implement embodiments of the invention described herein in other than the order illustrated or described herein.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing embodiments of the invention only and is not intended to be limiting of the invention.

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Example one

As shown in fig. 1-3, the utility model provides a technical scheme: the utility model provides a profile tolerance surveys utensil, includes surveys utensil base 1, survey 1 upper surface both sides fixed mounting of utensil base has locating pin 7, survey 1 upper surface both sides of utensil base and all install through locating pin 7 and be angle each other, two locating piece 2 that just symmetry, two the inboard detachable that locating piece 2 is the angle installs standard component 8 or surveyed the part, survey 1 upper surface of utensil base, and two locating piece 2 is one side fixed mounting of the inboard orientation of angle has supporting shoe 3, and this supporting shoe 3 center is located on two locating piece 2 lines of symmetry, supporting shoe 3 has the screw hole with the coincidence of line of symmetry, and this screw hole threaded connection has clamp pin 4, and the standard component 8 is kept away from to clamp pin 4's head end and stretches out supporting shoe 3, and the other end can withstand standard component 8 or surveyed the part.

The utility model provides a profile tolerance surveys utensil, includes surveys utensil base 1, survey utensil base 1 upper surface both sides fixed mounting has locating pin 7, survey utensil base 1 upper surface both sides all install locating piece 2 through locating pin 7, 2 inboard detachable of locating piece install standard component 8, survey utensil base 1 upper surface one side fixed mounting has supporting shoe 3, and supporting shoe 3 is located standard component 8 one side. The positioning block 2 is fixed on the base 1 through a screw 6.

Two side edges of the measuring tool base 1, which are close to the two positioning blocks 2, form two measuring tool benchmarks, and the two side edges are parallel to the inner sides of the two positioning blocks 2 which are in an angle. The two measuring tool references are respectively a measuring tool reference B and a measuring tool reference C.

It should be noted that, when the profile tolerance measuring tool works, the theoretical size of the standard block is the same as the theoretical size of the standard component 8, positioning pins 7 are fixedly installed on two sides of the upper surface of the measuring tool base 1, positioning blocks 2 are installed on two sides of the upper surface of the measuring tool base 1 through the positioning pins 7, the standard component 8 is detachably installed on the inner side of the positioning blocks 2, a supporting block 3 is fixedly installed on one side of the upper surface of the measuring tool base 1, the supporting block 3 is located on one side of the standard component 8, screws 6 are connected to two ends of the positioning blocks 2 in a threaded manner, pressing nails 4 are movably inserted into inner cavities of the supporting blocks 3, the supporting blocks 3 and the pressing nails 4 can be in threaded connection, the tops of the pressing nails 4 are matched with each other through pressing blocks 5 and the standard component 8, the installation precision of the positioning blocks 2 can be improved through the positioning pins 7, preparing two dial indicators, respectively adhering a measuring tool reference B and a measuring tool reference C to the platform, wherein the reading of the dial indicators on two measured sides of the calibration standard block is within +/-0.01, then replacing the standard block with a standard part 8, screwing a compression nail 4, enabling a pressing block 5 to compress the standard part 8, enabling two sides of the standard part 8 to be tightly adhered to the positioning block 2, measuring the dimension 14 by using the measuring tool reference B and the dial indicator, measuring the dimension 15 by using the measuring tool reference C and the dial indicator, and taking the reading of the dial indicator of +/-0.04 as being qualified.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (3)

1. The utility model provides a profile tolerance measuring tool, includes measuring tool base (1), its characterized in that:

positioning pins (7) are fixedly arranged on two sides of the upper surface of the measuring tool base (1),

two symmetrical positioning blocks (2) which form an angle with each other are arranged on the two sides of the upper surface of the measuring tool base (1) through positioning pins (7),

the inner sides of the two positioning blocks (2) which are in an angle are detachably provided with standard parts (8) or parts to be measured,

a supporting block (3) is fixedly arranged on the upper surface of the measuring tool base (1) and on one side of the inner sides of the two positioning blocks (2) which are in an angle direction, the center of the supporting block (3) is positioned on the symmetrical line of the two positioning blocks (2),

the supporting block (3) is provided with a threaded hole coincident with the symmetry line, the threaded hole is in threaded connection with a compression nail (4), the head end of the compression nail (4) is far away from the standard part (8) and extends out of the supporting block (3), and the other end of the compression nail can be propped against the standard part (8) or a part to be measured.

2. The profilometry tool of claim 1 wherein: the positioning block (2) is fixed on the base (1) through a screw (6).

3. The profilometry tool of claim 1 wherein: two side edges of the measuring tool base (1) close to the two positioning blocks (2) form two measuring tool benchmarks, and the two side edges are parallel to the inner sides of the two positioning blocks (2) which are in an angle.

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