Special measuring tool for rapidly measuring long-distance size of special structural part

Abstract

According to the structure of the special measuring tool, a dial indicator is installed at the front end of a measuring tool support through a gauge stand, the rear end of the measuring tool support is a measuring positioning end, and the dial indicator is zeroed through an inside micrometer; the measuring tool support is horizontally placed on the detection flat plate or on a plane of a detection part coplanar with the front-end detected part, and the measuring positioning surface or the rear-end detected part is arranged on the rear side of the detection flat plate or the detection part; the rear-end positioning surface of the measuring tool support is close to the measuring positioning surface or a rear-end measured part, and the measuring rod of the dial indicator is forwardly abutted against the front-end measured part. According to the utility model, the dimension precision of the distance length between two positioning surfaces of a part with a special structure or two measured parts can be rapidly and accurately detected, the production efficiency can be greatly improved, the waste is reduced, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to a geometric measuring tool, in particular to a special measuring tool for quickly measuring the long-distance dimensions of special structural parts. Background Art

[0002] Dimensional inspection is essential for ensuring the quality of machined parts during the manufacturing process and for verifying that they meet process dimensions. The effectiveness of the dimensional inspection method determines the efficiency of the inspection and, consequently, affects production efficiency. Therefore, effective and rapid relative or actual measurement is a practical issue that all machining manufacturers urgently need to address.

[0003] At present, for the measurement of multiple length distance dimensions of special structural parts exceeding 400 mm, a Type I vernier caliper or an inside micrometer with a specification of 0 to 500 or 0 to 600 is used. Each time the actual size of the measured object is measured, there are many and cumbersome operating steps, and it takes a long time, resulting in low detection efficiency.

[0004] Traditional detection methods take a long time in large-scale production lines or when multiple measurements of the object are required, which is the main reason for the reduction in production efficiency. Utility Model Content

[0005] In order to solve the deficiencies of the prior art, the utility model proposes a special measuring tool for quickly measuring the long-distance dimensions of special structural parts.

[0006] A special measuring tool for quickly measuring the long-distance dimensions of special structural parts that can solve the existing technical problems. Its technical solution includes a dial indicator. The difference is:

[0007] 1. The dial indicator is installed on the front end of the measuring tool bracket through the dial base. The rear end of the measuring tool bracket is the measurement positioning end. The dial indicator is adjusted to zero using an inside micrometer.

[0008] 2. The measuring tool bracket is placed flat on the detection plate or on the plane of the detection part that is coplanar with the front end of the detection part, and the measuring positioning surface or the rear end of the detection part is set on the rear side of the detection plate or the detection part.

[0009] 3. The rear end positioning surface of the measuring tool bracket is close to the measuring positioning surface or the rear end measured part, and the measuring rod of the dial indicator is forward against the front end measured part.

[0010] Furthermore, the base structure includes an upper square body and a lower cylindrical body, wherein the cylindrical body is fitted into a circular hole provided in the measuring tool support, and a locking screw is screwed into the side of the measuring tool support to tighten the cylindrical body.

[0011] Furthermore, the front end measuring sleeve of the dial indicator is fitted into a through hole provided on the square body, and a braking screw for tightening the measuring sleeve is screwed into the top of the square body.

[0012] Beneficial effects of the utility model:

[0013] 1. The utility model is a special measuring tool for quickly measuring the long-distance dimensions of special structural parts. It can quickly and accurately detect the relative measurement of special parts or the distance dimension accuracy between two planes in the length direction, which can greatly improve production efficiency, reduce waste and reduce manufacturing costs.

[0014] 2. The utility model can be used to perform relative or actual measurements on special parts or the distance between two planes in the length direction that need to be performed multiple times, with a fast detection speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the first embodiment of the present utility model.

[0016] Figure 2 for Figure 1 Top view of an embodiment.

[0017] Figure 3 This is a schematic structural diagram of the second embodiment of the present utility model.

[0018] Figure 4 for Figure 3 Top view of an embodiment.

[0019] Figure 5 for Figure 1 、 Figure 3 Schematic diagram of the installation structure of the dial indicator in the implementation method.

[0020] Figure number identification: 1. Dial indicator; 1-1. Measuring sleeve; 1-2. Measuring rod; 1-3. Small pointer; 1-4. Large pointer; 2. Measuring tool bracket; 3. Front part to be measured; 4. Testing plate; 5. Rear part to be measured; 6. Indicator base; 6-1. Square body; 7. Locking screw; 8. Braking screw. DETAILED DESCRIPTION

[0021] The technical solution of the present utility model will be further described below with reference to the embodiments shown in the accompanying drawings.

[0022] The utility model is a special measuring tool for quickly measuring the long-distance dimensions of special structural parts, comprising a long strip measuring tool bracket 2 in the front and rear directions. The front end of the measuring tool bracket 2 is a measuring end on which a dial indicator 1 is mounted through a table base 6, and the rear end of the measuring tool bracket 2 is a measuring positioning end formed into a hook shape downwards, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4shown.

[0023] The table base 6 includes a square body 6-1 on the upper part and a cylindrical body in the center of the lower part. The cylindrical body is downwardly fitted into a circular hole vertically opened in the center of the front end of the measuring tool bracket 2. A threaded hole I vertically connected to the circular hole is provided on the side surface of the measuring tool bracket 2. A locking screw 7 is screwed into the threaded hole I. Tighten the locking screw 7 to tighten the cylindrical body against the circular hole, thereby locking the table base 6 on the measuring tool bracket 2; a front and rear through hole is centrally provided on the square body 6-1. The measuring sleeve 1-1 of the dial indicator 1 is forwardly passed through the through hole. A threaded hole II vertically connected to the through hole is provided on the top of the table base 6. A brake screw 8 is screwed into the threaded hole II. Tighten the brake screw 8 to tighten the measuring sleeve 1-1 into the through hole, thereby locking the dial indicator 1 on the table base 6. Figure 5 shown.

[0024] Use an internal micrometer of appropriate size to adjust the dial indicator 1 (range 0-10mm, graduation value 0.01mm) to zero. The zeroing method is as follows:

[0025] 1-3, point to 50, and the small pointer 1-3 should point to 5, that is, the probe of the dial indicator 1 is compressed by 5mm. Then tighten the brake nail 8; gently remove the inside micrometer. The distance between the rear end positioning surface of the measuring tool bracket 2 and the probe is the maximum size of the measuring range of this special measuring tool. In this way, the zero adjustment of the dial indicator 1 is completed.

[0026] The detection method of the present utility model is:

[0027] Position the front end part 3 to be measured with its bottom surface positioned on the detection plate 4 or the detection part coplanar with the front end part 3 to be measured, place the rear end part 5 on the rear side of the detection plate 4, and place the bottom positioning surface of the measuring tool bracket 2 close to the detection plate 4 or the detection part coplanar with the front end part 3 to be measured, and make the rear end positioning surface of the measuring tool bracket 2 contact the measured surface or the rear end part 1 to be measured, and the measuring rod 1-2 of the dial indicator 1 is moved forward perpendicular to the front end part 3 to achieve continuous measurement or continuously push a front end part 3 to be measured from front to back toward the measuring rod 1-2 and make the rear end positioning surface of the measuring tool bracket 2 close to the rear end part 5 to be measured or the measured plane. At this time, the probe of the measuring rod 1-2 may be compressed, and the value of the dial indicator 1 at this time is read.

[0028] Repeating the above steps can quickly read multiple sets of data. Subtracting the read data from the zero data is the measured value. Comparing the required process dimension tolerance with the read data can detect whether the actual dimension between the two measurement positions is qualified.

[0029] The utility model adopts the data after the dial indicator 1 is adjusted to zero, continuously measures the distance between two measured positions, or continuously pushes the front end measured part 3 and places the rear end measured part 5 close to the rear end positioning surface of the measuring tool bracket 2. The front end measured part 3 contacts or compresses the probe of the measuring rod 1-2, thereby reading the value of the dial indicator 1. According to the process size, it can be determined whether the distance between the two measured positions is qualified, thereby achieving the purpose of quickly detecting relative measurement or actual measurement.

[0030] When the utility model is used to measure the length dimension of a special part or the distance between two measured surfaces, by observing the reading after the dial indicator 1 is zeroed, it is possible to determine whether the accuracy of the part dimension or the distance dimension is qualified, which can achieve the purpose of rapid detection of relative measurement, simplify the detection technique, greatly shorten the time spent on detection, and realize batch detection of the length dimension between two positions of special parts that require processing technology, thereby achieving the purpose of rapid detection of relative measurement using the measuring tool bracket 2 and the dial indicator 1.

[0031] This utility model proposes two measuring tools with different specifications and positioning surface structures according to different measuring ranges and measuring objects:

[0032] like Figure 1 As shown, its measuring range is 400 mm to 410 mm, and the measuring positioning end face of the measuring tool bracket 2 is concave in the rear end face of the measuring tool bracket 2 .

[0033] like Figure 3 As shown, the measuring range is 525 mm to 535 mm, and the measuring positioning end face of the measuring tool bracket 2 is convex to the rear end face of the measuring tool bracket 2 .

Claims

1. A special measuring tool for quickly measuring the long-distance dimensions of special structural parts, including a dial indicator (1), characterized by: The dial indicator (1) is mounted on the front end of the measuring tool bracket (2) via a dial base (6); the rear end of the measuring tool bracket (2) is a measuring positioning end, and the dial indicator (1) is zeroed using an inside micrometer; The measuring tool bracket (2) is placed flat on the detection plate (4) or on the plane of the detection part coplanar with the front end detection part (3), and the measuring positioning surface or the rear end detection part (5) is arranged on the detection plate (4) or the rear side of the detection part; The rear end positioning surface of the measuring tool bracket (2) is close to the measuring positioning surface or the rear end measured part (5), and the measuring rod (1-2) of the dial indicator (1) is forwardly pressed against the front end measured part (3).

2. The special measuring tool for rapid long-distance measurement of special structural parts according to claim 1 is characterized by: The table base (6) comprises an upper square body (6-1) and a lower cylindrical body. The cylindrical body is fitted into a circular hole provided on the measuring tool bracket (2). A locking screw (7) is screwed into the side surface of the measuring tool bracket (2) to tighten the cylindrical body.

3. The special measuring tool for rapid long-distance measurement of special structural parts according to claim 2 is characterized by: The front end measuring sleeve (1-1) of the dial indicator (1) is fitted into a through hole provided on the square body (6-1), and a braking screw (8) for tightening the measuring sleeve (1-1) is screwed into the top of the square body (6-1).

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