Tool for rapidly detecting size of oblong hole

Abstract

The utility model relates to the technical field of detection tools, and discloses an oblong hole size rapid detection tool which comprises a handle and a hole to be detected, one end of the handle is provided with a hole diameter detection mechanism, the other end of the handle is provided with a stop end, and one end, away from the handle, of the stop end is provided with a go end. According to the invention, the plane of the go end is inserted into the planes at the two ends in the to-be-detected hole, and the maximum width of the plane of the go end is smaller than the minimum size between the planes at the two sides in the to-be-detected hole, so that the go end can be smoothly inserted into the to-be-detected hole, and at the moment, the no-go end does not pass through the through hole of the to-be-detected hole; if the minimum size of the stop end is larger than the minimum size of the hole to be detected, the size of the hole to be detected is qualified or not, the size of the oblong hole is convenient to use, and whether the sizes of the short axis and the long axis of the oblong hole meet the tolerance requirement or not can be rapidly and accurately judged.

Description

Technical Field

[0001] The invention relates to the technical field of detection tools, and in particular to a tool for quickly detecting the size of an oblong hole. Background Art

[0002] In the measurement of oblong holes, three-jaw inside diameter micrometers, pneumatic and electrical meters, three-coordinate gauges, depth gauges and other tools are generally used for inspection. However, these measurement methods have high measurement costs, low inspection efficiency, and high technical requirements for personnel using measuring tools. They require professional operators and have high production costs. In addition, standard plug pins and calipers are used to detect the pinhole size, but when inspecting complex castings, they have the following disadvantages: there are many plug pin specifications and they are not easy to find. There are many sizes and they are prone to errors. The inspection efficiency is low and it cannot be used on the production site.

[0003] Therefore, it is necessary to solve the above problems through a tool for rapid detection of oblong hole size. Summary of the invention

[0004] The purpose of the present invention is to provide a tool for quickly detecting the size of an oblong hole to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: comprising a handle, one end of which is equipped with an aperture detection mechanism, the other end of which is equipped with a stop end, and the end of the stop end away from the handle is equipped with a through end.

[0006] Preferably, the through end is a waist-shaped column, and the two ends of the through end are divided into a plane end and arc ends on both sides, and the maximum size of the plane end group of the through end is smaller than the minimum size between the two side planes inside the hole to be detected.

[0007] Preferably, the stop end is a waist-shaped column, and the minimum size of the stop end is larger than the minimum size of the hole to be detected.

[0008] Preferably, the aperture detection mechanism comprises a connecting column, the connecting column is 8 cm in length, and an insertion section is provided at one end of the connecting column away from the handle.

[0009] Preferably, the size of the insertion section is equal to the size of the hole to be detected.

[0010] Technical effects and advantages of the present invention:

[0011] 1. In the present invention, the plane of the through end is inserted into the planes at both ends of the inside of the hole to be detected. If the maximum dimension of the plane width of the through end is smaller than the minimum dimension between the planes on both sides of the inside of the hole to be detected, the through end can be smoothly inserted into the inside of the hole to be detected. At this time, the stop end does not pass through the through hole of the hole to be detected, and the minimum dimension of the stop end is larger than the minimum dimension of the hole to be detected, indicating that the size of the hole to be detected is qualified, otherwise it is unqualified. This oblong hole size is convenient to use and can quickly and accurately determine whether the minor axis and major axis dimensions of the oblong hole meet the tolerance requirements.

[0012] 2. The length of the connecting column of the present invention is 12 cm, which is convenient for touching or visually judging the fit between the insertion section and the hole to be tested during measurement, thereby increasing the openness. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 It is a schematic diagram of the structure of the frame assembly of the present invention.

[0015] In the figure: 1. handle; 2. stop end; 3. through end; 4. connecting column; 5. insertion section; 6. hole to be tested. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0017] In the measurement of oblong holes, three-jaw inside diameter micrometer, gas and electric quantity meter, three-coordinate measuring instrument, depth gauge and other tools are generally used for inspection.

[0018] The existing oblong hole plug gauge has an integrated design of long and short axis through and stop. During use on the production site, it was found that when one of the dimensions of the short axis or long axis is smaller than the lower difference, the stop gauge will stop, and the unqualified size cannot be quickly identified. A standard plug needle and caliper are used to detect the pinhole size, but when inspecting complex castings, it has the following disadvantages: there are many plug needle specifications and it is not easy to find; there are many sizes and it is easy to make mistakes; the detection efficiency is low, and it cannot be used on the production site.

[0019] The present invention provides Figure 1 to Figure 2 The tool shown is a tool for quickly detecting the size of an oblong hole, comprising a handle 1, one end of which is provided with an aperture detection mechanism, the other end of which is provided with a stop end 2, and the end of the stop end 2 away from the handle 1 is provided with a through end 3.

[0020] When in use, the staff holds the handle 1 in position, inserts the through end 3 into the hole 6 to be detected, and at this time, the stop end 2 is located above the hole 6 to be detected, and measures the data inside the hole 6 to be detected through the through end 3.

[0021] Use scenario 1

[0022] Both the through end 3 and the stop end 2 are waist-shaped columns, both ends of which are flat and both sides are arc surfaces. The plane of the through end 3 is inserted into the planes at both ends of the inside of the hole 6 to be detected. The maximum dimension of the plane width of the through end 3 is smaller than the minimum dimension between the planes on both sides of the inside of the hole 6 to be detected. Then, the through end 3 can be smoothly inserted into the inside of the hole 6 to be detected. At this time, the stop end 2 does not pass through the through hole of the hole 6 to be detected, and the minimum dimension of the stop end 2 is larger than the minimum dimension of the hole 6 to be detected, indicating that the size of the hole 6 to be detected is qualified, otherwise it is unqualified.

[0023] Use scenario 2

[0024] The connecting column 4 connects the insertion section 5 and the handle 1 together. The handle 1 is held to pass the insertion section 5 through the through hole of the hole 6 to be detected. The insertion section 5 is a convex shape with flat surfaces at both ends and arc-shaped surfaces on both sides. The hole 6 to be detected is a groove with flat surfaces at both ends and arc-shaped surfaces on both sides. The length of the plane of the convexity is equal to that of the plane of the groove, and the bending angle of the arc of the convexity is the same as that of the arc of the groove. If the insertion section 5 is inserted into the hole 6 to be detected, it indicates that the hole 6 to be detected is qualified, otherwise it is unqualified.

[0025] The specific process of using the detection tool of the utility model to detect the pinhole size of the casting blank will be described in detail below.

[0026] Place the workpiece with the hole 6 to be detected on the detection table, and the staff holds the handle 1, brings one end of the through end 3 close to the hole 6 to be detected, and inserts the plane of the through end 3 into the planes at both ends of the inside of the hole 6 to be detected. If the maximum dimension of the plane width of the through end 3 is smaller than the minimum dimension between the two side planes of the inside of the hole 6 to be detected, the through end 3 can be smoothly inserted into the inside of the hole 6 to be detected. At this time, the stop end 2 does not pass through the through hole of the hole 6 to be detected, and the minimum dimension of the stop end 2 is larger than the minimum dimension of the hole 6 to be detected, indicating that the size of the hole 6 to be detected is qualified, otherwise it is unqualified. Then turn the handle 1 90 degrees to make the distance between the arcs on both sides of the through end 3 detect the hole to be detected. The width of the hole 6 is not contracted by the surface, otherwise it is not contracted. Then turn the handle 1180 degrees, and move the insertion section 5 close to the hole 6 to be tested. The plane of the protrusion is equal to the plane length of the groove, and the bending angle of the arc shape of the protrusion is the same as that of the arc shape of the groove. The insertion section 5 is inserted into the hole 6 to be tested, which indicates that the hole 6 to be tested is qualified, otherwise it is unqualified. After insertion, the length of the connecting column 4 is 12 cm, which is convenient for touching or visually judging the fit between the insertion section 5 and the hole 6 to be tested during measurement, and the openness is increased. This oblong hole size is easy to use, and can quickly and accurately determine whether the short axis and long axis dimensions of the oblong hole meet the tolerance requirements.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tool for quickly detecting the size of an oblong hole, comprising a handle (1), characterized in that: An aperture detection mechanism is installed at one end of the handle (1), a stop end (2) is installed at the other end of the handle (1), and a through end (3) is installed at the end of the stop end (2) away from the handle (1); The through end (3) is a waist-shaped column, and the two ends of the through end (3) are divided into a plane end and arc ends on both sides, and the maximum size of the plane end group of the through end (3) is smaller than the minimum size between the planes on both sides of the hole to be detected (6); The stop end (2) is a waist-shaped column, and the minimum size of the stop end (2) is larger than the minimum size of the hole to be detected (6); The aperture detection mechanism comprises a connecting column (4), the connecting column (4) has a length of 8-15 cm, and an insertion section (5) is provided at one end of the connecting column (4) away from the handle (1); The size of the insertion section (5) is equal to the size of the hole to be detected (6).

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