CN217384066U

CN217384066U - Multipurpose measuring device

Info

Publication number: CN217384066U
Application number: CN202122680339.9U
Authority: CN
Inventors: 杜孟军; 强欢; 张二艳; 陆爱萍
Original assignee: Avic Tianshui Aviation Industry Co ltd
Current assignee: Avic Tianshui Aviation Industry Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-09-06
Anticipated expiration: 2031-11-04

Abstract

The utility model provides a multipurpose measuring device improves the marking off claw appearance structure of digital display height slide caliper rule, increases its measurement function. The novel measuring head of the device can be used for measuring the wall thickness inside the deep hole of the part and the depth of the groove inside the part. The device is used for measuring and collecting the size of the part on a plane workbench, and the shape and position sizes such as coaxiality of the part are evaluated through collected size data. Novel gauge head can with the marking off claw alternate use, it is convenient to change, changes this novel gauge head of digital display height caliper marking off claw and can carry out multi-functional measurement, and according to the size of the part of surveying, can order the gauge head of different length, makes measuring result more accurate. The digital display height caliper is convenient to use, low in cost, multiple in measuring function, suitable for all digital display height calipers and convenient to popularize and use.

Description

Multipurpose measuring device

Technical Field

The utility model belongs to the measurement field of machining part, in particular to multipurpose measuring device.

Background

In the existing part measurement, the traditional measuring tool can only measure the overall dimension of the part and cannot go deep into the part to measure the geometric dimensions such as the wall thickness and the coaxiality of the deep hole of the part.

Disclosure of Invention

The utility model provides a technical problem be: in order to solve the defect that the existing measuring tool cannot go deep into the inside of the part to measure the geometric dimensions such as the wall thickness of the deep hole of the part, the coaxiality and the like, the novel detection device combined with the novel space dimension measurement equipment has the advantages that the multipurpose measuring device is provided, the self-made part is used for a long time to verify, the measuring result is accurate, the reliability is high, and the expected effect is achieved.

The technical scheme of the utility model is that: a multipurpose measuring device comprises a novel measuring head and a digital display height caliper,

the novel measuring head is Z-shaped, one end of the novel measuring head is connected with the digital display height caliper, the other end of the novel measuring head extends downwards to form a bulge, and the axis of the bulge is perpendicular to a Z-shaped linear rod; the protruding end is connected with a ball, and the outer diameter of the ball is smaller than the width of the groove to be measured; the axial length of the linear rod is greater than the axial length of the groove to be measured from the initial port of the part to be measured; the length of the protruding end is larger than the depth of the groove to be measured.

The utility model discloses further technical scheme is: when the novel measuring head extends into the cylindrical part to be measured, the digital display height caliper records the numerical value, continues to axially extend, and subtracts the two numerical values when the numerical value changes, so that the groove depth of the groove is obtained.

The utility model discloses further technical scheme is: the novel measuring head can also be used for measuring the coaxiality of the annular part.

The utility model discloses further technical scheme is: when the novel measuring head is positioned on the inner ring surface of the annular part to be measured, the part is rotated, and when numerical value fluctuation on the digital display height caliper is within a threshold range, the coaxiality of the outer ring surface and the inner ring surface is proved to be consistent, otherwise, the coaxiality is not consistent.

Effects of the invention

The technical effects of the utility model reside in that: the digital display height caliper has the advantages that the appearance structure of the marking claw of the digital display height caliper is improved, and the measuring function is increased. The novel measuring head of the device can be used for measuring the wall thickness inside the deep hole of the part and the depth of the groove inside the part. The device is used for measuring and collecting the size of the part on a plane workbench, and the shape and position sizes such as coaxiality of the part are evaluated through collected size data.

The novel measuring head can be used with the marking off claw in turn, and is convenient to replace, and the digital display height caliper marking off claw is changed to be the novel measuring head, so that multifunctional measurement can be carried out, and according to the size of a measured part, measuring heads with different lengths can be customized, so that the measuring result is more accurate.

The device is convenient to use, low in cost, multiple in measuring function, suitable for all digital display height calipers and convenient to popularize and use.

Drawings

FIG. 1 is a schematic view of a novel probe structure

FIG. 2 is a schematic view of the installation structure of the novel measuring head and the digital display height caliper

FIG. 3 is a cross-sectional view of the novel probe

FIG. 4 is a schematic view of the prior art digital display height caliper with the ruling claw detached

FIG. 5 is a schematic view of a novel measuring head for installing a digital height caliper

FIG. 6 is a schematic view of a first structure of the device for measuring groove depth

FIG. 7 is a schematic view of a second structure of the device for measuring groove depth

FIG. 8 is a schematic view of a first structure of the device for coaxiality assessment

FIG. 9 is a second structural diagram of the device for coaxiality assessment

Description of reference numerals: 1-new side head; 2-digital display height calipers; 3-ball

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Referring to fig. 1-9, a multifunctional measuring device comprises a novel measuring head 1 and a digital display height caliper 2, wherein the installation process is that a marking claw of the existing digital display height caliper is taken off, and one end of the novel measuring head 1 is connected with the digital display height caliper.

The following is a further explanation of the use of the device by means of two embodiments, respectively.

Example 1: measuring the depth of the inner groove of the columnar part:

the part to be detected is a cylindrical body with openings at two ends, and the inner cavity is a multi-step inner cavity; the annular groove to be measured is positioned in the middle of the part; placing the spherical end of the novel measuring head 1 on the inner wall of one end of the part to be measured, and reading wall thickness data by the digital display height caliper at the moment; continuously axially extending the novel measuring head, keeping the spherical end in contact with the inner wall all the time in the extending process, and recording the wall thickness data when the spherical end of the novel measuring head 1 is in contact with the bottom of the annular groove to be measured; and subtracting the wall thickness data of the front part and the rear part to obtain the groove depth inside the measuring part.

Example 2: measuring the coaxiality of the annular part:

the fork is fixed to the measuring table, wherein the fork passes through in the shape of a ring at both ends. The novel side head ball end is placed on the inner wall of the first ring-shaped piece, the fork-shaped piece is rotated to drive the ring-shaped piece to rotate, and the coaxiality of the outer ring and the inner ring of the ring-shaped piece is proved to be consistent if the data change of the digital display height caliper is observed within the allowable numerical range, otherwise, the coaxiality is inconsistent. The same method was used to perform the inspection of another annular part.

Claims

1. A multipurpose measuring device is characterized by comprising a novel measuring head (1) and a digital display height caliper (2),

the novel measuring head (1) is Z-shaped, one end of the novel measuring head is connected with the digital display height caliper (2), the other end of the novel measuring head extends downwards to form a bulge, and the axis of the bulge is perpendicular to a Z-shaped linear rod; the protruding end is connected with a round ball (3), and the outer diameter of the round ball is smaller than the width of the groove to be measured; the axial length of the linear rod is greater than the axial length of the groove to be measured from the initial port of the part to be measured; the length of the protruding end is larger than the depth of the groove to be measured.

2. A multipurpose measuring device as claimed in claim 1, characterized in that when the novel measuring head (1) is inserted into the cylindrical part to be measured, the digital display height caliper (2) records the value, and continues to be inserted axially, and when the value changes, the value is subtracted from the two values to obtain the groove depth of the groove.

3. A multipurpose measuring device according to claim 1, characterized in that the new probe (1) can also be used to measure the coaxiality of annular parts.

4. A multi-purpose measuring device according to claim 3, characterized in that when said new measuring head (1) is positioned on the inner annular surface of the annular element to be measured, rotating the element, when the value fluctuation on the digital height caliper (2) is within the threshold value range, it is verified that the coaxiality of the outer annular surface and the inner annular surface is consistent, otherwise it is inconsistent.