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CN216954344U - Miniature angle groove angle measuring device - Google Patents

Miniature angle groove angle measuring device Download PDF

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Publication number
CN216954344U
CN216954344U CN202122988614.3U CN202122988614U CN216954344U CN 216954344 U CN216954344 U CN 216954344U CN 202122988614 U CN202122988614 U CN 202122988614U CN 216954344 U CN216954344 U CN 216954344U
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China
Prior art keywords
angle
groove
universal
measuring
ruler
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Active
Application number
CN202122988614.3U
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Chinese (zh)
Inventor
刘万春
陈掣
温玉旺
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Beijing Xinghang Electromechanical Equipment Co Ltd
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Beijing Xinghang Electromechanical Equipment Co Ltd
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Abstract

The utility model discloses a micro angle groove angle measuring device which mainly comprises an adapter plate (2), a universal angle gauge (3), a micrometer support (4), an adjusting knob (5) and a lever micrometer (6); the adapter plate (2) is fixedly connected with one end of a universal angle ruler, the universal angle ruler (3) is used for measuring the included angle between two straight surfaces of the miniature angle groove and a workpiece reference surface, and the micrometer support (4) is used for connecting the lever micrometer (6) with the movable measuring surface of the universal angle ruler; the adjusting knob (5) is arranged on the dial indicator support (4) and is used for adjusting the upper and lower positions of a measuring head of the lever dial indicator on the surface to be measured of the angle groove; the utility model can measure the more accurate angle value of the micro angle groove which is difficult to accurately measure by adopting common measuring methods such as a common angle ruler, an angle sample plate and the like, thereby improving the angle detection and processing precision of the parts and the processing quality of products.

Description

Miniature angle groove angle measuring device
Technical Field
The utility model belongs to the technical field of angle measurement, and particularly relates to a micro angle groove angle measuring device which is used for accurately measuring an included angle between two straight surfaces of an angle groove with shallow depth.
Background
At present, a part of a certain product is provided with an angle groove with shallow depth, the length of two straight sides of the angle groove is short and generally does not exceed 5mm, the angle tolerance of the angle groove is strict, generally is +/-10', and is an important size, 100% of actual measurement values need to be detected and recorded, and the typical angle groove size is shown in figure 1. Because the angle groove is shallow, the angle between two straight sides of the angle groove cannot be detected by a general angle ruler, and an angle measured value cannot be obtained by measuring by using an angle sample plate.
SUMMERY OF THE UTILITY MODEL
The utility model provides a micro angle groove angle measuring device, which aims to solve the technical problems that: the included angle of the two straight surfaces of the angle groove with shallow depth can be accurately measured.
In order to solve the technical problems, the utility model provides a micro angle groove angle measuring device, which is characterized in that: the universal angle gauge mainly comprises an adapter plate 2, a universal angle gauge 3, a micrometer support 4, an adjusting knob 5 and a lever micrometer 6; the adapter plate 2 is fixedly connected with one end of a universal angle ruler, the universal angle ruler 3 is used for measuring the included angle between two straight surfaces of the miniature angle groove and a workpiece reference surface, and the micrometer support 4 is used for connecting the lever micrometer 6 with the movable measuring surface of the universal angle ruler; the adjusting knob 5 is arranged on the dial indicator support 4 and used for adjusting the upper position and the lower position of a measuring head of the lever dial indicator on the surface to be measured of the angle groove.
Has the advantages that: the utility model can measure the more accurate angle value of the micro angle groove which is difficult to accurately measure by adopting common measuring methods such as a common angle ruler, an angle sample plate and the like, thereby improving the angle detection and processing precision of the parts and the processing quality of products.
Drawings
FIG. 1 schematic view of an angular slot
FIG. 2 is a schematic view of an angle measuring device;
fig. 3 is a side view of an angle measuring device.
1. The device comprises a workpiece to be measured 2, an adapter plate 3 and a universal angle ruler; 4. dial gauge support 5, adjusting knob 6, lever dial gauge
Detailed Description
In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention is provided.
The utility model provides a micro angle groove angle measuring device which mainly comprises an adapter plate 2, a universal angle ruler 3, a micrometer support 4, an adjusting knob 5 and a lever micrometer 6;
the length of two straight sides of the micro angle groove is shorter, generally not more than 5mm, the transition round angle of the intersection of the two straight sides is smaller, generally not more than R0.5, and the angle tolerance value of the angle groove is more strict, generally +/-10'. A typical angled slot configuration is shown in fig. 1.
The adapter plate 2 is fixedly connected with one end of the universal angle ruler, and the adapter plate 2 can be rigidly connected with a workpiece to be measured, so that the position fixation of the fixed measuring surface of the universal angle ruler and the reference surface of the workpiece is ensured; the universal angle ruler 3 is used for measuring the included angles between two straight surfaces of the miniature angle groove and the reference surface of the workpiece, so that the included angle of the angle groove is calculated; the micrometer gauge support 4 is used for connecting the lever micrometer gauge 6 with a movable measuring surface of the universal angle ruler and enabling the lever micrometer gauge to perform fine adjustment movement of the up and down position along the axis of the support; the adjusting knob 5 is arranged on the dial indicator support 4 and is used for adjusting the upper and lower positions of a measuring head of the dial indicator on the surface to be measured of the angular groove, and the dial indication value of the dial indicator is kept consistent at the upper and lower limit positions of the surface to be measured of the angular groove by moving the dial indicator up and down and adjusting the angle value of the universal angle gauge, so that the angle value of the surface to be measured and the workpiece reference surface is measured; the lever dial indicator 6 is a measuring tool for directly detecting a surface to be measured of an angle groove, the dial indicator with higher precision needs to be selected as much as possible according to the angle tolerance to be measured, when the precision of the dial indicator is 0.001mm and the length of the surface to be measured is 2mm, the measurement precision of the angle is about arcsin (0.001/2) ═ 1.72 ', and according to the tolerance range +/-10 ' of the angle groove, the theoretical measurement deviation is 1.72 '/20 ' ≈ 1/11.6, so that the angle measurement precision requirement of the angle tolerance +/-10 ' can be completely met. The measuring head of the lever dial indicator needs to be selected according to the size of a groove to be measured and the fillet at the sharp corner, the transition fillet of the angle groove shown in figure 1 is only R0.30-0.1mm, and a hard alloy ball head measuring head with the ball head diameter of phi 0.5mm needs to be adopted.
The measuring method comprises the following steps: when the angle measuring device is used, a fixed measuring surface of the universal angle ruler needs to be fixed on a workpiece to be measured by the adapter plate, and then the lever micrometer is fixed on a movable measuring surface of the universal angle ruler by the support; the angle of the universal angle gauge is roughly adjusted to be consistent with one straight side of the angle groove, the ball head part of the measuring head is enabled to be divided on the straight side of the angle groove by adjusting the upper position and the lower position of the lever dial gauge and the angle of the measuring head, and the dial plate of the lever dial gauge can read out an effective indicating value; then, rotating an adjusting knob to enable the ball head part of the measuring head to move up and down on the straight edge of the angle groove, finely adjusting the angle of the universal angle ruler according to the change condition of the indicating value of the lever micrometer until the indicating value of the lever micrometer is consistent when the measuring head moves in the effective measuring range of the straight edge of the angle groove, and recording the angle reading of the universal angle ruler as A1; then roughly adjusting the angle value of the universal angle ruler to be consistent with the other straight edge of the angle groove, repeating the steps until the lever dial indicator value is consistent when the measuring head moves in the effective measuring range of the other straight edge of the angle groove, and recording the angle reading of the universal angle ruler as A2; and finally, calculating the difference value A of the two angles to be A2-A1 to obtain the angle measured value of the angle groove to be measured.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (4)

1. The utility model provides a miniature angle groove angle measuring device which characterized in that: the universal angle gauge mainly comprises an adapter plate (2), a universal angle gauge (3), a dial indicator support (4), an adjusting knob (5) and a lever dial indicator (6); the adapter plate (2) is fixedly connected with one end of a universal angle ruler, the universal angle ruler (3) is used for measuring the included angle between two straight surfaces of the miniature angle groove and a workpiece reference surface, and the micrometer support (4) is used for connecting the lever micrometer (6) with the movable measuring surface of the universal angle ruler; the adjusting knob (5) is arranged on the dial indicator support (4) and is used for adjusting the upper and lower positions of a measuring head of the lever dial indicator on the surface to be measured of the angle groove.
2. The micro angular groove angle measuring device of claim 1, wherein: the length of two straight sides of the miniature angle groove is not more than 5mm, the radius of a transition fillet formed by the intersection of the two straight sides is not more than 0.5mm, and the angle tolerance value of the angle groove is +/-10'.
3. The micro angular groove angle measuring device of claim 1, wherein: the adapter plate (2) is rigidly connected with a workpiece to be measured.
4. The micro angular groove angle measuring device of claim 1, wherein: the measuring head of the lever dial indicator needs to be selected according to the size of the groove to be measured and the fillet at the sharp corner.
CN202122988614.3U 2021-12-01 2021-12-01 Miniature angle groove angle measuring device Active CN216954344U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122988614.3U CN216954344U (en) 2021-12-01 2021-12-01 Miniature angle groove angle measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122988614.3U CN216954344U (en) 2021-12-01 2021-12-01 Miniature angle groove angle measuring device

Publications (1)

Publication Number Publication Date
CN216954344U true CN216954344U (en) 2022-07-12

Family

ID=82307205

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122988614.3U Active CN216954344U (en) 2021-12-01 2021-12-01 Miniature angle groove angle measuring device

Country Status (1)

Country Link
CN (1) CN216954344U (en)

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