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An internal thread verticality detection device and its use method

A detection device and verticality technology, which is applied in the field of internal thread verticality detection devices, can solve the problems of high frequency of false detection, low detection accuracy, and easy scratches on the workpiece, so as to reduce the difficulty of detection, solve technical problems, and improve reliability. Operational and economical effects

Active Publication Date: 2018-06-05
贵州凯星液力传动机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide an internal thread verticality detection device and its use method to solve the existing problems in the prior art, such as low detection accuracy, high frequency of false detection, easy scratches on the workpiece, easy wear and tear of the inspection tool and short service life. The problem

Method used

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  • An internal thread verticality detection device and its use method
  • An internal thread verticality detection device and its use method
  • An internal thread verticality detection device and its use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041]During detection, screw 1 is inserted into the threaded hole C2 opened in the middle of threaded sleeve 2 through external thread C1, the end of screw 1 does not exceed the lower end surface of threaded sleeve 2, and the distance between the end surface of screw 1 and the lower end surface of threaded sleeve 2 is 0mm, that is, the end surface of the screw 1 is flush with the lower end surface of the threaded sleeve 2; put the pad 4 into the φQ1 at the bottom of the threaded hole A1 on the workpiece 5 to be tested, and then put the reference block 3 into the φD1 on the workpiece 5 to be measured In the step hole; screw the assembly assembly of screw 1 and threaded sleeve 2 into the internal threaded hole of the workpiece 5 through the external thread A2, and ensure that there is a gap of 1 mm between the bottom end surface of the threaded sleeve 2 and the bottom end surface of the internal threaded hole A1 ; Rotate the screw 1 so that the ball end SR at the end is inserted...

Embodiment 2

[0043] During detection, screw 1 is inserted into the threaded hole C2 opened in the middle of threaded sleeve 2 through external thread C1, the end of screw 1 does not exceed the lower end surface of threaded sleeve 2, and the distance between the end surface of screw 1 and the lower end surface of threaded sleeve 2 is 2mm; put the block 4 into the φQ1 at the bottom of the threaded hole A1 on the workpiece 5 to be tested, and then put the reference block 3 into the stepped hole of φD1 on the workpiece 5 to be tested; put the screw 1 and the screw sleeve 2 assembly assembly Screw the external thread A2 into the internal thread hole of the workpiece 5 to ensure that there is a gap of 2 mm between the bottom end surface of the threaded sleeve 2 and the bottom end surface of the internal thread hole A1; rotate the screw 1 so that the ball head SR at the end is inserted into the spacer 4 In the tapered hole opened in the middle of the top, then tighten the screw 1; use a caliper or...

Embodiment 3

[0045] During detection, screw 1 is inserted into the threaded hole C2 opened in the middle of threaded sleeve 2 through external thread C1, the end of screw 1 does not exceed the lower end surface of threaded sleeve 2, and the distance between the end surface of screw 1 and the lower end surface of threaded sleeve 2 is 1mm; put the pad 4 into the φQ1 at the bottom of the threaded hole A1 on the workpiece 5 to be tested, and then put the reference block 3 into the stepped hole of φD1 on the workpiece 5 to be tested; put the screw 1 and the screw sleeve 2 assembly assembly Screw the external thread A2 into the internal thread hole of the workpiece 5 to ensure that there is a gap of 1.5 mm between the bottom end surface of the threaded sleeve 2 and the bottom end surface of the internal thread hole A1; rotate the screw 1 so that the ball head SR at the end is inserted into the pad In the tapered hole opened in the middle of the top of block 4, then tighten the screw 1; use a cali...

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Abstract

The invention discloses a device for detecting verticality of internal threads and a method for using the same. The device includes screws, threaded sleeves, reference blocks and pads. The center of the threaded sleeve is provided with an internal threaded hole C2, and the outer wall of the screw is provided with external threads C1. The screw is inserted into the threaded hole C2 through the external thread C1. The threaded sleeve is T-shaped and the outer wall is provided with an external thread A2 matching the internal threaded hole A1 on the workpiece to be tested. The reference block is ring-shaped and sleeved on the outer wall of the threaded sleeve. The spacer is placed at the bottom end of the threaded sleeve and a distance is left between the threaded sleeve. The invention converts the perpendicularity between the internal threaded hole and its end surface into the parallelism of the two parts of the threaded sleeve and the reference block, and the verticality can be obtained by measuring the maximum difference in the distance between the threaded sleeve and the reference block, which effectively solves the problem It solves the technical problem that the existing inspection tools cannot measure, reduces the detection difficulty, and improves the operability and economy.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to the field of threaded hole processing and detection, in particular to an internal thread verticality detection device and a use method thereof. Background technique [0002] In the field of mechanical processing technology, it is often necessary to process an internal threaded hole on a workpiece, such as figure 1 The workpiece shown is processed with an internally threaded hole A1, and the perpendicularity between the internally threaded hole A1 and its end face is required to be ≤0.05. Under normal circumstances, it is difficult to detect the perpendicularity between the internally threaded hole A1 and its end face by using conventional detection methods. The main reasons are: There are three aspects, one is that there are many factors that cause cumulative errors in thread processing, the other is that the pitch diameter of the thread has a large tolerance range,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/245
Inventor 胡志宇
Owner 贵州凯星液力传动机械有限公司
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