Go gauge and stop gauge device for testing the middle diameter of multi-start rectangular threads
By designing the middle diameter detection gauge and stopping device for multi-head rectangular threads, the placement of the gauge detection column and stopping detection column in the thread spiral groove is solved, and the problem of low detection accuracy of the thread in the prior art is achieved, achieving efficient and accurate detection effects.
Patent Information
- Application Number
- CN202420600086.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-03-27
AI Technical Summary
The prior art is difficult to accurately detect the middle diameter of multi-head rectangular threads, resulting in low measurement accuracy, long periods, low efficiency and poor interchangeability.
A medium diameter detection gauge and stopping device for multi-head rectangular threads is designed. By placing a gauge detection column and a stopping detection column in the threaded spiral groove, the state between them is observed and the thread is intuitively judged whether the thread meets the tolerance requirements.
It realizes high-precision thread diameter detection, reduces detection cost, is easy to operate, and has high measurement accuracy, solving the problems of low accuracy and low efficiency in traditional methods.
Smart Images
Figure CN222703979U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of thread processing, in particular to a through gauge and a stop gauge device for detecting the middle diameter of multiple-start rectangular threads. Background Art
[0002] Rectangular multi-start threaded transmission has the characteristics of large load-bearing capacity, high speed, and good self-locking performance, but the screw rod is difficult to process. The traditional processing and inspection method used to use a tooth thickness caliper to measure the mean diameter. Since the two caliper angle measurement points are both spiral surfaces, accurate values cannot be obtained. It can only be compensated by the subsequent matching transmission nut matching, which has a long cycle, low efficiency, and poor interchangeability.
[0003] Therefore, a go gauge and a stop gauge device for detecting the middle diameter of multiple-start rectangular threads are proposed. Summary of the invention
[0004] The utility model aims to provide a go gauge and a stop gauge device for detecting the middle diameter of a multi-start rectangular thread, so as to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a through gauge device for detecting the middle diameter of multiple-start rectangular threads, comprising a through gauge plate body, a through gauge detection column integrally formed at the center of the lower surface of the through gauge plate body, and an outer diameter of the through gauge detection column being the minimum value of the normal spacing on the middle diameter of the thread.
[0006] Preferably, the lower surface of the go gauge plate is the go gauge measuring end surface.
[0007] Preferably, the axial dimension of the through gauge detection column is the measuring height of the thread pitch diameter.
[0008] A stop gauge device for detecting the middle diameter of multiple rectangular threads comprises a stop gauge plate body, a stop gauge detection column is integrally formed at the center of the lower surface of the stop gauge plate body, and the outer diameter of the stop gauge detection column is the maximum value of the normal spacing on the middle diameter of the thread.
[0009] Preferably, the lower surface of the stop gauge plate is the stop gauge measuring end surface.
[0010] Preferably, the axial dimension of the stop gauge detection column is the measuring height of the thread pitch diameter.
[0011] Compared with the prior art, the utility model has the following beneficial effects: by placing the go gauge detection column and the stop gauge detection column in the spiral groove of the thread and observing the state between the thread, it is possible to intuitively judge whether the thread meets the tolerance requirements. The device has low manufacturing cost, easy operation and high measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the use state of the utility model;
[0013] Figure 2 It is a schematic diagram of the cutaway structure of the utility model;
[0014] Figure 3 For this utility model Figure 2 A schematic diagram of the structure of the middle A area;
[0015] Figure 4 This is a schematic diagram of the structure of the through gauge detection column of the utility model;
[0016] Figure 5 For this utility model Figure 2 A schematic diagram of the structure of the middle B area;
[0017] Figure 6 It is a structural schematic diagram of the stop gauge detection column of the utility model.
[0018] In the figure: 1. go gauge plate; 11. go gauge detection column; 12. go gauge measurement end face; 2. stop gauge plate; 21. stop gauge detection column; 22. stop gauge measurement end face. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Example
[0020] like Figure 3 and Figure 4 As shown: a through gauge device for detecting the middle diameter of a multi-start rectangular thread has a stepped shaft shape, comprising a through gauge plate body 1, a through gauge detection column 11 being integrally formed at the center of the lower surface of the through gauge plate body 1, the outer diameter of the through gauge detection column 11 being the minimum value of the normal spacing on the middle diameter of the thread, the lower surface of the through gauge plate body 1 being the through gauge measuring end face 12, and the axial dimension of the through gauge detection column 11 being the measuring height of the middle diameter of the thread.
[0021] When testing the thread gauge, the gauge detection column 11 is tangent to the thread on one side at the mid-diameter point in the thread normal section, and there is a gap on the other side. At the same time, the gauge measuring end face 12 of the gauge plate 1 is tangent to the thread outer diameter generatrix in the thread axial section, which means that the thread mid-diameter meets the requirements.
[0022] like Figure 5 and Figure 6 As shown: a stop gauge device for detecting the middle diameter of a multi-start rectangular thread has a stepped shaft shape, comprising a stop gauge plate body 2, a stop gauge detection column 21 integrally formed at the center of the lower surface of the stop gauge plate body 2, the outer diameter of the stop gauge detection column 21 is the maximum value of the normal spacing on the middle diameter of the thread, the lower surface of the stop gauge plate body 2 is the stop gauge measuring end face 22, and the axial dimension of the stop gauge detection column 21 is the measuring height of the middle diameter of the thread.
[0023] When detecting the stop gauge, the stop gauge detection column 21 is tangent to the helical surfaces on both sides of the thread in the normal section of the thread. At the same time, there is a gap between the stop gauge measuring end face 22 and the thread outer diameter generatrix in the axial section of the thread, which means that the thread pitch diameter meets the requirements.
[0024] Working principle: According to the thread design requirements, Figure 4 and Figure 6 After the semi-finishing of the thread is completed, the go gauge detection column 11 is pressed Figure 3 As shown in the figure, it is placed in the spiral groove of the thread. If the through gauge measuring end face 12 cannot form a line contact with the outer circle of the major diameter of the thread (the operator uses light transmission detection), it means that the thread mid-diameter size does not meet the tolerance requirements. The thread surface continues to be processed, and the processing amount is the mid-diameter tolerance value. After the processing is completed, measure it in the same way as above until it meets the tolerance requirements. Figure 3 Requirements shown.
[0025] Then, press the stop gauge detection column 21. Figure 5 As shown, it is placed in the spiral groove of the thread, and then it meets the Figure 5 The requirements are shown. It proves that the thread diameter meets the tolerance requirements. This step is used as the inspection standard to determine the qualified parts.
[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A go gauge device for detecting the mid-diameter of a multi-start rectangular thread, comprising a go gauge plate (1), characterized in that: A go gauge detection column (11) is integrally formed at the center of the lower surface of the go gauge plate (1), and the outer diameter of the go gauge detection column (11) is the minimum value of the normal spacing on the thread pitch diameter.
2. The device for detecting the mid-diameter of a multi-start rectangular thread according to claim 1 is characterized in that: The lower surface of the go gauge plate body (1) is the go gauge measuring end surface (12).
3. The device for detecting the mid-diameter of multiple rectangular threads according to claim 1 is characterized in that: The axial dimension of the through gauge detection column (11) is the measuring height of the thread pitch diameter.
4. A stop gauge device for detecting the middle diameter of a multi-start rectangular thread, comprising a stop gauge plate (2), characterized in that: A stop gauge detection column (21) is integrally formed at the center of the lower surface of the stop gauge plate (2), and the outer diameter of the stop gauge detection column (21) is the maximum value of the normal spacing on the thread pitch diameter.
5. The device for detecting the mid-diameter stop gauge of multiple rectangular threads according to claim 4 is characterized in that: The lower surface of the stop gauge plate body (2) is a stop gauge measuring end surface (22).
6. The device for detecting the mid-diameter stop gauge of multiple rectangular threads according to claim 4, characterized in that: The axial dimension of the stop gauge detection column (21) is the measuring height of the thread pitch diameter.