CN215766849U

CN215766849U - Device for quickly and accurately measuring whether chamfer size is qualified or not

Info

Publication number: CN215766849U
Application number: CN202121878919.2U
Authority: CN
Inventors: 刘奎丰; 李凤权; 郭可新; 李涵洋; 郑启明; 张松涛; 孟凌宇
Original assignee: Harbin Dongan Auto Engine Co Ltd
Current assignee: Harbin Dongan Auto Engine Co Ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-02-08
Anticipated expiration: 2031-08-11

Abstract

A device for rapidly and accurately measuring whether the size of a chamfer is qualified belongs to the technical field of mechanical cold machining. The device is used for solving the problems of high measurement cost and low measurement efficiency, and further providing a device for quickly and accurately measuring whether the chamfer size is qualified; each side of the polygonal structure consists of a reference side and a measuring side, wherein part of the sides of the polygonal structure is set to be a through end, the other part of the sides is set to be a front end, the side, close to the minimum limit size of the measured chamfer, of the distance H between the reference side and the measuring side is a through end, and the side, close to the maximum limit size of the measured chamfer, of the distance H between the reference side and the measuring side is a stop end. The device avoids the defects that when the caliper is used for measuring in the existing measuring method, the measuring result is influenced by personal skills and eyesight, so that the measuring error is large, and the quality hidden danger of judging unqualified products as qualified products is large, and can completely avoid the quality hidden danger of judging the unqualified products as qualified products; the measurement cost is low, and the measurement efficiency is improved by about 12 times.

Description

Device for quickly and accurately measuring whether chamfer size is qualified or not

Technical Field

The utility model belongs to the technical field of mechanical cold machining, and particularly relates to a device for quickly and accurately measuring whether the size of a chamfer is qualified or not.

Background

At present, two measurement methods are mainly used for measuring the size of the chamfer, one method is a common caliper, the measurement method is influenced by the vision and skill of an operator, the measurement error is large (about 0.2mm on average), the quality hidden trouble that unqualified products flow out due to the fact that the unqualified products are judged to be qualified products is large, the measurement efficiency is low, and 2 minutes is required for measuring once; the other method is to use a chamfering caliper, the measuring method has higher cost, each chamfering caliper can only measure the size of the chamfer with a single angle, the chamfering calipers with different angles are required to be ordered according to the chamfer with different angles, the efficiency is lower, and the measuring time is about 2 minutes.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems of high measurement cost and low measurement efficiency, and further provides a device for quickly and accurately measuring whether the chamfer size is qualified;

the technical scheme adopted by the utility model is as follows: a device for rapidly and accurately measuring whether the size of a chamfer is qualified or not comprises a main body; the main part is polygonized structure, and every limit of this polygonized structure comprises benchmark limit and measurement limit two parts, and benchmark limit and measurement limit parallel arrangement, the length on benchmark limit is greater than the size of quilt measuring the chamfer, the part limit that sets up this polygonized structure is for leading to the end, part limit top, distance H between benchmark limit and the measurement limit is for leading to the end with the limit that the minimum limit dimension of quilt measuring the chamfer is close, distance H between benchmark limit and the measurement limit is close with the limit that the maximum limit dimension of quilt measuring the chamfer is close for ending the end.

Compared with the prior art, the utility model has the following beneficial effects:

the device avoids the defects that the measurement error is large (about 0.2mm on average) and the quality hidden trouble of judging unqualified products as qualified products is large due to the fact that the measurement result is influenced by personal skills and eyesight when a caliper is used for measuring in the existing measurement method, and can completely avoid the quality hidden trouble of judging the unqualified products as the qualified products; compared with the measurement by using a chamfer caliper, the measurement cost is low, the time for one-time measurement is reduced from about 2 minutes to about 10 seconds, and the measurement efficiency is improved by about 12 times.

Drawings

FIG. 1 is a schematic structural view of the present invention;

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

FIG. 3 is a schematic illustration of a no-go gauge measurement of the present invention;

FIG. 4 is a schematic view of a gauge measurement of the present invention;

wherein: 1. a reference edge; 2. measuring the edges; 3. a through end; 4. stopping the end; 5. a main body; 6. a slope surface.

Detailed Description

The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 4, and the embodiment provides a device for rapidly and accurately measuring whether the chamfer size is qualified, which comprises a main body 5; the main body 5 is a polygonal structure, each side of the polygonal structure is composed of a reference side 1 and a measuring side 2, the reference side 1 and the measuring side 2 are arranged in parallel, the length of the reference side 1 is larger than the size of a measured chamfer, part of the sides of the polygonal structure is set to be a through end 3, a part of the sides is set to be a front end 4, the side, close to the minimum limit size of the measured chamfer, of the distance H between the reference side 1 and the measuring side 2 is set to be the through end 3, specific values can be designed according to relevant standards of measuring tool design, and can also be designed according to experience, the side, close to the maximum limit size of the measured chamfer, of the distance H between the reference side 1 and the measuring side 2 is set to be the front end 4, and the specific values can be designed according to the standard of measuring tool design and can also be designed according to experience.

The second embodiment is as follows: the present embodiment will be described with reference to fig. 1 to 4, and the present embodiment further defines a first specific embodiment, and in the present embodiment, the polygonal structure is an even-numbered polygon or an odd-numbered polygon. Other components and connection modes are the same as those of the first embodiment.

The third concrete implementation mode: the present embodiment is described with reference to fig. 1 to 4, and is further limited to the second specific embodiment, in the present embodiment, the through end 3 and the stop end 4 of the polygonal structure are symmetrically or asymmetrically arranged along the center of the polygonal structure, and the remaining sides of the polygon may or may not be designed as the through end and the stop end chamfered with other dimensions. The other components and the connection mode are the same as those of the second embodiment.

In the fourth embodiment, the present embodiment is described with reference to fig. 2, and the third embodiment is further limited, and in the present embodiment, a slope surface 6 is provided on each of the measuring edge 2 on one side surface of the main body 5 and the transition edge connected thereto.

The basic operation steps are as follows:

1) the reference edge 1 of the through end 3 is attached to one edge of the chamfer to be measured,

2) the device is moved to make the measuring edge 2 of the through end 3 contact with the other edge of the chamfer,

3) and (4) comparing the distance from the chamfer to the reference edge 1 to the measuring edge 2 by visual inspection or by using a pencil or other tools, and if the chamfer size is larger than the distance from the reference edge 1 to the measuring edge 2, continuing to perform operations 4) -6), otherwise, judging that the chamfer size is unqualified. As shown in fig. 4, the workpiece chamfer edge is not covered by the edge of the through end 3, which indicates that the workpiece chamfer dimension is larger than the through gauge (minimum limit dimension), at this time, the through end 3 is measured to be qualified, otherwise, the through end 3 is measured to be unqualified.

4) Attaching the reference edge 1 of the end stop 4 to one edge with a measuring chamfer,

5) moving the device to make the measuring edge 2 of the end stop 4 contact with the other edge of the chamfer,

6) and visually comparing the chamfer size with the distance from the reference edge 1 to the measuring edge 2, judging that the chamfer size is qualified if the chamfer size is smaller than the distance from the reference edge 1 to the measuring edge 2, and otherwise judging that the chamfer size is unqualified. As shown in fig. 3, the chamfered edge of the workpiece is covered by the edge of the end stop 4, which indicates that the chamfered dimension of the workpiece is smaller than the end stop 4 (maximum limit dimension), at this time, the end stop 4 is measured to be qualified, otherwise, the end stop 4 is measured to be unqualified.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a device whether qualified of quick accurate measurement chamfer size which characterized in that: comprises a main body (5); main part (5) are polygonized structure, every limit of this polygonized structure comprises benchmark limit (1) and measurement limit (2) two parts, and benchmark limit (1) and measurement limit (2) parallel arrangement, the length of benchmark limit (1) is greater than the size of being surveyed the chamfer, the part limit that sets up this polygonized structure is for leading to end (3), the part limit is ending end (4), distance H between benchmark limit (1) and the measurement limit (2) is for leading to end (3) with the limit that the minimum limit size of being surveyed the chamfer is close, distance H between benchmark limit (1) and the measurement limit (2) is ending end (4) with the limit that the maximum limit size of being surveyed the chamfer is close.

2. The device for rapidly and accurately measuring the chamfer size according to claim 1, wherein the device comprises: the polygonal structure is an even-numbered polygon or an odd-numbered polygon.

3. The device for rapidly and accurately measuring whether the chamfer size is qualified or not according to claim 2, is characterized in that: the through end (3) and the stop end (4) of the polygonal structure are symmetrically or asymmetrically arranged along the center of the polygonal structure.

4. The device for rapidly and accurately measuring the chamfer size according to claim 3, wherein the device comprises: a ramp surface (6) is arranged on each measuring edge (2) on one side of the main body (5) and at the transition edge connected with the measuring edge.