CN206330516U - A kind of device of inspection multi-hole position part dimension - Google Patents

Abstract

The utility model provides a device for inspecting the size of porous parts, which includes a base and a guide column. The base is provided with a screw hole along the axial direction, and the guide column is connected with the base through the screw hole. The cross-section is rectangular, the upper and lower sides of the base are provided with screw holes and scales, the cross-section of the guide post is circular, the longitudinal section is stepped, the bottom end is provided with threads, and the base is provided with scales, which can quickly detect Whether the dimensions between the hole positions of the components are qualified, especially the size of the porous mechanical parts supported by the DC converter valve module, which can minimize the inevitable measurement error and improve the measurement efficiency and quality. The distance between the guide post and the base of the device Threaded connection is adopted, and the guide post can be replaced with the parts to be tested. By setting guide posts with different diameters and different positions, the conversion of various inspection devices can be realized to test different parts.

Description

A device for inspecting the dimensions of porous parts

Technical field:

The utility model relates to a device for inspecting dimensions, in particular to a device for inspecting the dimensions of porous parts.

Background technique:

Among the mechanical parts supported by the DC converter valve module, many mechanical parts have a lot of holes, and the distance between the holes is uneven. When checking whether the size of this mechanical part is qualified, the size from the center of each hole to the top or bottom of the part needs to be measured. Excluding the errors of measuring tools such as vernier calipers and tapes and personal measurement errors, the measurement task itself has caused a certain degree of waste in manpower, material resources and time, and there are also many error factors piled up. The waste is completely unnecessary and does not achieve a good measure.

Invention content:

In order to solve the above-mentioned shortcomings of the prior art, the utility model discloses a device for inspecting the size of porous parts, including a base and a guide post, the base is provided with a screw hole along the axial direction, and the guide post passes through the screw hole Connect to the base.

The first preferred technical solution is that the cross-section of the base is rectangular, and the upper and lower sides of the base are provided with screw holes and scales.

The second preferred technical solution is that the cross section of the guide post is circular, the longitudinal section is stepped, and the bottom end is provided with threads.

The third preferred technical solution is that the diameter of the first step of the guide post is the lower limit of the tolerance of the surface to be measured in the hole of the component.

The fourth preferred technical solution is that the lower limit of the tolerance is the standard value of the surface to be measured of the component hole plus the lower deviation of the surface to be measured of the component hole.

The fifth preferred technical solution is that the second stepped diameter of the guide post is the upper tolerance limit of the measured surface of the component hole.

The sixth preferred technical solution is that the upper tolerance value is the standard value of the surface to be measured of the component hole plus the upper deviation of the surface to be measured of the component hole.

A seventh preferred technical solution is that the cross-section of the guide post includes but is not limited to a circle, and its shape matches the hole shape of the component to be detected.

The eighth preferred technical solution is that the guide post is provided with a scale, and the edges of the first step and the second step of the guide post are provided with chamfers.

Compared with the closest prior art, the technical solution provided by the present invention has the following excellent effects:

1. There is a scale on the base, which can quickly detect whether the size between the hole positions of the parts is qualified, especially the size of the mechanical parts supporting the porous position of the DC transmission converter valve module, and can minimize the inevitable measurement error and improve the measurement efficiency. and measurement quality.

2. The guide post and the base of this device are connected by threads, and the guide post can be replaced with the parts to be tested. By setting guide posts with different diameters and different positions, the conversion of various inspection devices can be realized to test different parts.

3. The design of the stepped guide column can be detected more according to the upper and lower limits of the tolerance. This detection method is simple and accurate, and the cost is low, and it can be mass-produced to reduce the labor intensity of workers.

4. The rounded corner design of the edge of the guide post can effectively protect the hole to be tested, avoid scratching the surface to be tested, and prolong the service life of the device.

5. The guide post can be connected to the upper and lower surfaces of the base, and both sides are used for measurement, which improves the working efficiency of the device.

Description of drawings

Fig. 1 is the structural representation of this device;

Fig. 2 is the top view of this device base;

Fig. 3 is a sectional view of the guide post of the device.

Explanation of reference signs:

1-base; 2-guide pillar; 3-screw hole; 4-first step; 5-second step.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described The embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without creative efforts belong to the protection scope of the present utility model. The technical scheme provided by the utility model is described in detail below in conjunction with the accompanying drawings.

Embodiment one

As shown in Figure 1-2, the utility model provides a device for inspecting the size of porous parts, including a base 1 and a guide post 2, the base 1 is provided with a screw hole 3 along the axial direction, and the guide post 2 passes through the The screw hole 3 is connected with the base 1, the cross section of the bottom 1 is rectangular, the upper and lower sides of the base 1 are provided with a screw hole 3 and a scale, and the position of the screw hole 3 can be determined according to the hole of the component to be measured. The position of the position is set correspondingly. The scale is set on the base 1, which can detect the distance between the holes of the porous position part at the same time. , and the lower two surfaces, both of which are used for measurement, which improves the working efficiency of the device.

As shown in Figure 3, the cross-section of the guide post 2 is circular, the longitudinal section is stepped, and the bottom end is provided with threads. The diameter of the first step 4 of the guide post is below the tolerance of the surface to be measured in the hole of the component. The lower limit of the tolerance is the standard value of the surface to be measured in the component hole plus the lower deviation of the surface to be measured in the component hole. The tolerance upper limit value of the measuring surface, the tolerance upper limit value is the standard value of the surface to be measured for the component hole plus the upper deviation of the surface to be measured for the component hole.

The cross-section of the guide post 2 includes a circle but is not limited to a circle, and its shape matches the hole shape of the component to be detected, and the size of the guide post 2 also matches the hole size of the component to be detected. There is a scale on the column 2, which can detect the depth of the component hole at the same time. The edges of the first step 4 and the second step 5 of the guide column are provided with chamfers, which can effectively protect the hole to be measured and avoid scratching the surface to be tested. Extend device life.

Embodiment two

When the device provided by the utility model is in use, the diameter of the first step 4 of the guide post 2 is first set to the tolerance lower limit of the surface to be measured in the hole of the component to be detected, and the diameter of the second step 5 of the guide post 2 is first set. The tolerance upper limit value of the surface to be measured for the hole of the component to be detected, when the surface to be detected of the hole of the component to be detected is inserted into the first step 4 of the guide post 2, if the hole of the component to be detected can fully enter the first step 4 and does not If it falls into the second step 5, it means that the surface to be tested meets the standard. When the hole of the component to be tested cannot enter the first step 4, it means that the surface to be tested is too small, which is an unqualified product. When the hole of the component to be tested can enter the second step 5 , and there are gaps, indicating that the surface to be detected is too large, and it is also a substandard product.

In this technical solution, the surface to be measured of each component hole to be tested has a standard value, but it is impossible for the size of each surface to be measured to be equal to the standard value, and if it is not equal to the standard value, it is a substandard product , which not only costs the enterprise a lot, but also is difficult to realize. Among them, the standard value of the surface to be measured plus the upper deviation of the surface to be measured is the upper limit of the hole tolerance of the component to be tested, that is to say, the production to be tested The maximum size of the component hole cannot exceed the tolerance, that is, the influence of human measurement error factors and the labor intensity of workers are reduced, and the size measurement device can be used for batch measurement of the component holes to be inspected, thereby improving the measurement efficiency and product quality.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application rather than to limit its protection scope. Although the present application has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: After reading this application, those skilled in the art can still make various changes, modifications or equivalent replacements to the specific implementation methods of the application, but these changes, modifications or equivalent replacements are all within the protection scope of the pending claims of the application.

Claims (9)

1. A device for inspecting the dimensions of porous parts, comprising a base and a guide post, characterized in that the base is provided with screw holes along the axis, and the guide post is connected to the base through the screw holes. 2. The device according to claim 1, wherein the cross-section of the base is rectangular, and the upper and lower sides of the base are provided with screw holes and scales. 3 . The device according to claim 1 , wherein the cross section of the guide post is circular, the longitudinal section is stepped, and the bottom end is provided with threads. 4 . 4 . The device according to claim 1 , wherein the diameter of the first step of the guide post is the lower limit of the tolerance of the surface to be measured in the hole of the component. 4 . 5 . The device according to claim 4 , wherein the lower tolerance limit is the standard value of the surface to be measured in the component hole plus the lower deviation of the surface to be measured in the component hole. 6 . 6 . The device according to claim 1 , wherein the diameter of the second step of the guide post is the upper tolerance limit of the measured surface of the component hole. 7 . 7 . The device according to claim 6 , wherein the upper tolerance value is the standard value of the surface to be measured for the component hole plus the upper deviation of the surface to be measured for the component hole. 8 . 8 . The device according to claim 4 , wherein the cross-section of the guide post includes but is not limited to a circle, and its shape matches the hole shape of the component to be detected. 9. The device according to claim 4, wherein the guide post is provided with a scale, and the edges of the first step and the second step of the guide post are provided with chamfers.