CN215639229U - Checking fixture for rapidly checking profile tolerance of inner hole of part - Google Patents
Checking fixture for rapidly checking profile tolerance of inner hole of part Download PDFInfo
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- CN215639229U CN215639229U CN202122290293.XU CN202122290293U CN215639229U CN 215639229 U CN215639229 U CN 215639229U CN 202122290293 U CN202122290293 U CN 202122290293U CN 215639229 U CN215639229 U CN 215639229U
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Abstract
The utility model discloses a checking fixture for rapidly checking the profile tolerance of an inner hole of a part, which comprises a checking fixture main body, wherein the checking fixture main body is formed by connecting a guide section, a lower difference section, an upper difference section and a handle in sequence from front to back; the main body of the guide section is in a conical structure gradually increasing from front to back, and the guide planes are symmetrically arranged at the front end of the outer side face of the main body of the guide section in a cutting mode. Compared with a three-coordinate measuring machine sorting mode, the method has the advantages that the influence of human factors on measurement can be greatly reduced, the reliability is greatly improved, and the measurement result is highly credible.
Description
Technical Field
The utility model relates to the field of automobile parts, in particular to a checking fixture for quickly checking the profile degree of an inner hole of a part.
Background
The traditional measurement of the inner hole of the part adopts a special measuring instrument such as a three-coordinate measuring machine and the like, which can be measured, but the operation is complex and is difficult to be mastered by non-professionals, and the detection time of the method is long, each part needs at least 3 minutes, the efficiency is low, and the operator needs to watch in the whole process, the labor intensity is high, for products of tens of thousands of parts, if the products need to be checked one by one, the operator can repeatedly perform mechanical labor for a long time, and the eyes, hands, shoulders and other parts are very tired; secondly, the sorting efficiency is low, and each person can approximately complete the inspection of about 200 products every day; in addition, the projector for measurement belongs to a precise optical instrument, and is expensive and high in use cost. The production measurement requirements of tens of thousands of products are difficult to meet.
In view of the above situation, a convenient and fast inspection means is urgently needed in the production field.
SUMMERY OF THE UTILITY MODEL
The present invention aims to overcome the above-mentioned shortcomings and provide a technical solution to solve the above-mentioned problems.
A checking fixture for rapidly checking the profile tolerance of an inner hole of a part comprises a checking fixture main body, wherein the checking fixture main body is formed by connecting a guide section, a lower difference section, an upper difference section and a handle in sequence from front to back;
the guide section, the lower differential section, the upper differential section and the handle are coaxially arranged;
the main body of the guide section is in a conical structure gradually increasing from front to back, two guide planes are symmetrically arranged at the front end of the outer side surface of the main body of the guide section in a cutting mode, the guide planes are used for enabling the front end of the guide section to form a tooth-shaped structure, the structure is used for enabling the checking fixture to smoothly enter an inner hole of a workpiece to be checked, and the working efficiency can be greatly improved in the process of large-batch checking; the inferior difference section is the same with the inferior difference section structure, and inferior difference section main part size is less than the inferior difference section, be equipped with the step of fillet shape between inferior difference section and the inferior difference section, appear the dead condition of card when avoiding detecting.
As a further scheme of the utility model: be equipped with the part on the surface of lower poor section and be planar spigot surface, the spigot surface provides the guide effect, improves inspection efficiency to and avoid waiting to detect the condition that appears rotating the lock card relatively between instrument and the work piece.
As a further scheme of the utility model: the length of the guide section is 4mm-7mm, and the length design of 5mm is preferably selected.
The utility model has the beneficial effects that: the utility model can quickly and accurately detect wrong parts, greatly simplifies the measurement work compared with other measurement modes, relieves the measurement sorting personnel from monotonous and repeated simple work, reduces the labor intensity of the personnel and improves the labor efficiency of the personnel. Compared with a three-coordinate measuring machine sorting mode, the method has the advantages that the influence of human factors on measurement can be greatly reduced, the reliability is greatly improved, and the measurement result is highly credible.
Additional aspects and advantages of the utility model will be set forth in the description which follows, or may be learned by practice of the utility model.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a perspective view of the present invention.
In the figure: 1-guide section, 2-lower difference section, 3-upper difference section, 4-handle and 5-guide surface.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, in the embodiment of the utility model, a gauge for rapidly checking the profile tolerance of an inner hole of a part comprises a gauge main body, wherein the gauge main body is formed by connecting a guide section 1, a lower differential section 2, an upper differential section 3 and a handle 4 in sequence from front to back;
the guide section 1, the lower differential section 2, the upper differential section 3 and the handle 4 are coaxially arranged;
the main body of the guide section 1 is in a conical structure gradually increasing from front to back, two guide planes are symmetrically arranged at the front end of the outer side surface of the main body of the guide section 1 in a cutting mode, the guide planes are used for enabling the front end of the guide section 1 to form a tooth-shaped structure, the structure is used for enabling the checking fixture to smoothly enter an inner hole of a workpiece to be checked, and the working efficiency can be greatly improved in the process of large-batch checking;
Be equipped with the part on the surface of lower difference section 2 and be planar spigot surface 5, spigot surface 5 provides the guide effect, improves inspection efficiency to and avoid waiting to detect the condition that appears rotating the lock card relatively between instrument and the work piece.
The length of the guide section 1 is 4mm-7mm, and the length design of 5mm is preferably selected.
The working principle of the utility model is as follows: the checking fixture and the part to be detected are respectively held by two hands, the checking fixture is inserted into an inner hole of the part to be detected, and the judgment is carried out according to the following phenomena:
the detected part stays in the guide section 1 and cannot enter the profile tolerance lower difference detection part of the detection tool, and the part is judged to be unqualified;
the part to be detected can enter the detection part of the profile tolerance upper difference section 3 of the detection tool, and is judged to be unqualified;
the part to be detected can enter the detection part of the profile degree lower difference section 2 of the detection tool, but can not enter the detection part of the profile degree upper difference section 3, and the part is judged to be qualified.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. A checking fixture for rapidly checking the profile tolerance of an inner hole of a part comprises a checking fixture main body and is characterized in that the checking fixture main body is formed by connecting a guide section, a lower difference section, an upper difference section and a handle in sequence from front to back; the main body of the guide section is of a conical structure gradually increasing from front to back, two guide planes are symmetrically arranged at the front end of the outer side face of the main body of the guide section in a cutting mode, the structure of the lower difference section is the same as that of the upper difference section, and the size of the main body of the lower difference section is smaller than that of the upper difference section.
2. The tool for rapidly inspecting the profile of the inner hole of the part according to claim 1, wherein a partially planar guide surface is arranged on the outer surface of the lower differential section.
3. The tool for rapidly inspecting the profile of the inner hole of the part according to claim 1, wherein the guide section, the lower differential section, the upper differential section and the handle are coaxially arranged.
4. The inspection device for rapidly inspecting the profile of the inner hole of the part according to claim 1, wherein a fillet-shaped step is arranged between the lower differential section and the upper differential section.
5. The tool for rapidly inspecting the profile of the inner hole of the part according to claim 1, wherein the length of the guide section is 4mm to 7 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122290293.XU CN215639229U (en) | 2021-09-22 | 2021-09-22 | Checking fixture for rapidly checking profile tolerance of inner hole of part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122290293.XU CN215639229U (en) | 2021-09-22 | 2021-09-22 | Checking fixture for rapidly checking profile tolerance of inner hole of part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215639229U true CN215639229U (en) | 2022-01-25 |
Family
ID=79918369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122290293.XU Active CN215639229U (en) | 2021-09-22 | 2021-09-22 | Checking fixture for rapidly checking profile tolerance of inner hole of part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215639229U (en) |
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2021
- 2021-09-22 CN CN202122290293.XU patent/CN215639229U/en active Active
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