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Adjustable calibrating device for measuring intermediate diameter of internal thread of oil casing

A technology of diameter measurement and proofreading device, which is applied in the direction of mechanical diameter measurement, etc., can solve the problems of users who are easy to make mistakes and reverse adjustment, lack of flexibility, single use, etc., and achieve the effects of wide application range, improved measurement efficiency and convenient maintenance

Inactive Publication Date: 2011-11-02
WUXI SEAMLESS OIL PIPE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The dimensional deviation required by the original device process exists permanently and cannot be adjusted. It is single-used and lacks flexibility. Every time it is used, it must be adjusted from the dial indicator of the pitch gauge. It is easy for the user to make a reverse adjustment by mistake, which may easily lead to quality accidents. occur

Method used

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  • Adjustable calibrating device for measuring intermediate diameter of internal thread of oil casing
  • Adjustable calibrating device for measuring intermediate diameter of internal thread of oil casing
  • Adjustable calibrating device for measuring intermediate diameter of internal thread of oil casing

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0019] Such as Figure 1~Figure 2 Shown: the present invention comprises micrometer differential head 1, movable measuring rod 2, micrometer differential head fixed bracket 3, movable measuring rod fixed bracket 4, fixed bracket base 5, movable measuring rod locking screw 6, micrometer differential head locking screw 7 , fixed bracket locking screw 8, bracket base screw 9, standard proofreading rod 10, proofreading positioning end 11, proofreading adjustment groove 12 and movable measuring rod measuring surface 13.

[0020] Such as figure 1 As shown: the fixed bracket base 5 is provided with proofreading and adjusting grooves 12 , and the proofreading and adjusting grooves 12 are distributed along the length of the fixing bracket base 5 . One end of the fixed support base 5 is provided with a micrometer differential head fixed support 3 , and the other end of...

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Abstract

The invention relates to an adjustable calibrating device for measuring the intermediate diameter of an internal thread of an oil casing. The adjustable calibrating device comprises a fixing bracket base, wherein one end of the fixing bracket base is provided with a micrometer head fixing bracket, and the other end of the fixing bracket base is provided with a movable measuring rod fixing bracket; the micrometer head fixing bracket is provided with a micrometer head; the movable measuring rod fixing bracket is provided with a movable measuring rod; and the movable measuring rod and the micrometer head are distributed in parallel with the fixing bracket base. The adjustable calibrating device is convenient to use, and the processing cost on various specifications and a single size is greatly saved; the intermediate diameter size can be adjusted optionally between 50 millimeters and 550 millimeters, and the technical requirement is met; the accuracy is high and is almost equal to that of a micrometer, and conversion and adjustment of positive and negative sizes on a dial indicator of the intermediate diameter gauge are not required in the using process of the adjustable calibrating device; and the adjustable calibrating device has a simple and reliable structure, high stability, wide application range and high measuring accuracy, is very convenient to maintain, is easy to operate and is safe and reliable, and the measuring efficiency is increased.

Description

technical field [0001] The invention relates to an adjustable calibrating device, in particular to an adjustable calibrating device for measuring the pitch diameter of the internal thread of an oil casing, which is provided with the technical field of measuring the internal thread of the oil pipe. Background technique [0002] At present, the measurement of the pitch diameter of the inner thread of the oil casing is mostly realized by a calibration rod. It turns out that the calibration rod is a single size fixed by processing, and the measurement accuracy is not high. It is used for calibration when the pitch gauge measures the pitch diameter of the internal thread, and then adjusts the mask of the dial indicator on the pitch gauge to make the pointer point to zero. Sometimes the zero position of the dial indicator needs to be corrected due to the deviation between the size of the calibration rod and the size required by the process. [0003] The dimensional deviation requ...

Claims

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Application Information

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IPC IPC(8): G01B5/08
Inventor 冯波闫永军胡罡
Owner WUXI SEAMLESS OIL PIPE
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