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Internal thread perpendicularity detecting device and using method thereof

A detection device and technology for verticality, applied to the field of internal thread verticality detection devices, can solve the problems of easy scratching of workpieces, high false detection frequency, low detection accuracy, etc., so as to improve operability and economy, and reduce detection Difficulty, the effect of solving technical problems

Active Publication Date: 2015-04-22
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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  • Internal thread perpendicularity detecting device and using method thereof
  • Internal thread perpendicularity detecting device and using method thereof
  • Internal thread perpendicularity detecting device and using method thereof

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 backing plate 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 head SR at the end ...

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 backing plate 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 be tested, and 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 backing plate 4 In the tapered hole opened in the middle of the top, then tighten...

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 backing plate 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; 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 Then tighten the screw 1 in the tapered hole opened in the middle of the top of the plate 4; use a caliper or an outer micrometer to measure the ga...

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Abstract

The invention discloses an internal thread perpendicularity detecting device and a using method of the internal thread perpendicularity detecting device. The internal thread perpendicularity detecting device comprises a screw, a threaded sleeve, a reference block and a cushion block, an internal threaded hole C2 is formed in the center of the whole threaded sleeve, external threads C1 are arranged on the outer wall of the screw, the screw is inserted in the threaded hole C2 through the external threads C1, the threaded sleeve is in a T shape, external threads A2 matched with an internal threaded hole A1 in a tested workpiece are arranged on the outer wall of the threaded sleeve, the reference block is annular and is connected to the outer wall of the threaded sleeve in a sleeving mode, the cushion block is arranged at the bottom end of the threaded sleeve, and a gap is reserved between the cushion block and the threaded sleeve. According to the internal thread perpendicularity detecting device and the using method of the internal thread perpendicularity detecting device, the perpendicularity of the internal threaded hole and the end face of the internal hole is transformed into the depth of parallelism of the end face of the threaded sleeve and the end face of the reference block, the perpendicularity can be obtained simply by measuring the maximum difference value of the distance between the threaded sleeve and the reference block, the technical problem that an existing gauge cannot conduct measurement is effectively solved, the detecting difficulty is lowered, and the operability and economy are improved.

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 Applications(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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