CN212806898U - Concentricity detects and uses mould - Google Patents
Concentricity detects and uses mould Download PDFInfo
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- CN212806898U CN212806898U CN202021502018.9U CN202021502018U CN212806898U CN 212806898 U CN212806898 U CN 212806898U CN 202021502018 U CN202021502018 U CN 202021502018U CN 212806898 U CN212806898 U CN 212806898U
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Abstract
The utility model discloses a concentricity testing mold, which comprises a base and two mounting columns, wherein the base is a rectangular plate, a plurality of mounting holes are arranged on the base, two mounting holes are in one group, and the distances among the mounting holes in different groups are different; the mounting post is mounted in the mounting hole and comprises a connecting part and a butting part, wherein the connecting part is cylindrical and is inserted in the mounting hole, the butting part is used for butting against the outer wall of the part, the butting part is positioned above the connecting part and is integrally formed with the connecting part, and the diameter of the connecting part is smaller than that of the butting part; compared with the prior art, the utility model discloses simple structure makes the low price, can satisfy the requirement of the detection of numerical control equipment and numerical control processing simultaneously.
Description
Technical Field
The utility model relates to a supporting spare part field of high-grade numerical control equipment specifically is a mould is used in concentricity detection.
Background
Coaxiality is an important technical index for evaluating a cylindrical workpiece, and coaxiality errors directly influence the assembly and use of the workpiece. However, when the measured element axis of the workpiece is extremely short, it is very difficult to evaluate the coaxiality of the workpiece, and the concentricity is usually used for evaluation. The coaxiality error directly influences the matching precision and the use condition of the workpiece. The concentricity error is the eccentricity which is the eccentricity of the circle center reflected by the coaxiality error on the section, and the concentricity error is the offset degree of the circle center. Concentricity is a special form of coaxiality. When the measured element is the circle center (point), the hole on the thin workpiece or the axis of the shaft, the measured axis is regarded as the measured point, and the coaxiality of the measured axis and the hole on the thin workpiece to the reference axis is the concentricity. The measurement of concentricity allows for projection measurements.
When the concentricity of the circular ring-shaped part is detected, expensive equipment such as a yaw meter is not needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a concentricity detects and uses mould to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a mould for detecting concentricity comprises a base and two mounting columns, wherein the base is a rectangular plate, a plurality of mounting holes are formed in the base, two mounting holes are in one group, and the distances between the mounting holes in different groups are different; install the erection column in the mounting hole, the erection column is including being columniform connecting portion and butt portion, and wherein connecting portion are used for pegging graft in the mounting hole, and butt portion is used for with the outer wall butt of part, and wherein butt portion is located connecting portion top and butt portion and connecting portion integrated into one piece setting, and the diameter of connecting portion is less than the diameter of butt portion.
Further, the diameter of the connecting part is consistent with the inner diameter of the mounting hole.
Furthermore, the bottom of the base is provided with a pressure relief groove, wherein the pressure relief groove is connected to the bottom of each mounting hole and communicated with each mounting hole.
Compared with the prior art, the beneficial effects of the utility model are that:
when the multifunctional table is used, the base is horizontally placed on the workbench, the mounting columns are inserted into the mounting holes of the group, the part is placed on the base, the outer wall of the part is abutted against the two mounting columns, the gauge head of the dial indicator with the seat is abutted against the outer wall or the inner wall of the part, the part is rotated, the outer wall of the part is abutted against the two mounting columns, and the concentricity of the part can be observed by observing the jumping of the dial indicator with the seat;
simple structure, low manufacturing cost and can meet the detection requirement.
Drawings
Fig. 1 is a plan view of a concentricity testing mold.
Fig. 2 is a cross-sectional view of a concentricity testing mold taken along the direction a-a.
Fig. 3 is a bottom view of a concentricity testing mold.
FIG. 4 is a schematic diagram of a concentricity testing mold used in conjunction with a dial gauge with a seat.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Referring to fig. 1-4, a mold for concentricity detection includes a base 100 and two mounting posts 300, wherein the base 100 is a rectangular plate, the base 100 is provided with a plurality of mounting holes 200, two of the mounting holes 200 are a group, and correspond to circular ring-shaped parts to be detected with different outer diameters, and the distances between the mounting holes 200 in different groups are different; the mounting post 300 is mounted in the mounting hole 200, the mounting post 300 comprises a connecting portion 301 and an abutting portion 302 which are cylindrical, the connecting portion 301 is used for being inserted into the mounting hole 200, the abutting portion 302 is used for abutting against the outer wall of a part, the abutting portion 302 is located above the connecting portion 301, the abutting portion 302 and the connecting portion 301 are integrally formed, the diameter of the connecting portion 301 is smaller than that of the abutting portion 302, and the diameter of the connecting portion 301 is consistent with the inner diameter of the mounting hole 200;
furthermore, the bottom of the base 100 is provided with a pressure relief groove 400, wherein the pressure relief groove 400 is connected to the bottom of each mounting hole 200 and is used for communicating with each mounting hole 200, when in use, the base 100 is placed on a horizontal plane, and the diameter of the connecting portion 301 is consistent with the inner diameter of the mounting hole 200, when the mounting post 300 is pulled out of the mounting hole 200, negative pressure exists in the mounting hole, so that a user is difficult to pull out, and the pressure relief groove 400 is provided at the bottom of the base 100, so that gas can flow into the mounting hole from the pressure relief groove from the adjacent mounting hole 200, so that the air pressure is kept balanced; the same is true when mounting the mounting hole 200.
During the use of the utility model, place base 100 level on the workstation, insert erection column 300 in the mounting hole 200 of a set of, place part 500 on base 100, make two erection columns 300 of part 500's outer wall butt, the gauge outfit butt part 500's of taking seat lever percentage table 600 outer wall or inner wall simultaneously, rotate part 500, keep two erection columns 300 of part 500's outer wall butt, through observing taking seat lever percentage table 600 beating, can observe the concentricity of part.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (3)
1. A concentricity detection die comprises a base and two mounting columns, and is characterized in that the base is a rectangular plate, a plurality of mounting holes are formed in the base, two mounting holes are in a group, and the distances between the mounting holes in different groups are different; install the erection column in the mounting hole, the erection column is including being columniform connecting portion and butt portion, and wherein connecting portion are used for pegging graft in the mounting hole, and butt portion is used for with the outer wall butt of part, and wherein butt portion is located connecting portion top and butt portion and connecting portion integrated into one piece setting, and the diameter of connecting portion is less than the diameter of butt portion.
2. The mold for detecting concentricity according to claim 1, wherein a diameter of the connecting portion coincides with an inner diameter of the mounting hole.
3. The mold for detecting concentricity according to claim 1, wherein a pressure relief groove is formed at a bottom of the base, and the pressure relief groove is connected to bottoms of the mounting holes and communicates with the mounting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021502018.9U CN212806898U (en) | 2020-07-27 | 2020-07-27 | Concentricity detects and uses mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021502018.9U CN212806898U (en) | 2020-07-27 | 2020-07-27 | Concentricity detects and uses mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212806898U true CN212806898U (en) | 2021-03-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021502018.9U Active CN212806898U (en) | 2020-07-27 | 2020-07-27 | Concentricity detects and uses mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212806898U (en) |
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2020
- 2020-07-27 CN CN202021502018.9U patent/CN212806898U/en active Active
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