Stud structure interface measuring device and method thereof

Abstract

The invention relates to a stud structure interface measuring device and method. The stud structure interface measuring device comprises a main body structure, an upper limit value detection threaded hole is formed in the end face of an upper limit value measuring end, a lower limit value detection threaded hole is formed in the end face of a lower limit value measuring end, and an observation notch is formed in the side face of the main body structure. The bottom surface of the upper limit value detection threaded hole and the bottom surface of the lower limit value detection threaded hole are exposed in the observation gap. The upper limit value detection threaded hole and the lower limit value detection threaded hole are manufactured according to a go gauge, effective thread length detection of the stud structure is completed while go gauge detection is performed on the stud of the stud structure, multiple times of point selection and measurement are not needed, and the detection process and workload are reduced. The non-effective thread part of the stud structure to be detected cannot be screwed into the lower limit value detection threaded hole and the upper limit value detection threaded hole, whether the effective thread length is qualified or not is judged according to the number of threads exposed out of the main body structure after screwing, and the detection accuracy can be ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of stud structure measurement, and particularly to a stud structure interface measurement device and method thereof. Background Art

[0002] In engineering applications, for some stud structures in certain application scenarios, due to the need to avoid stress concentration points, the undercut machining method cannot be used, and only the machining method without an undercut can be adopted. Therefore, the thread obtained by this machining method includes an effective thread part and a non-effective thread part. At present, the common method for inspecting the length of the effective thread part is usually to use a caliper to take point measurements. However, this inspection method has the following problems: (1) When measuring the length of the effective thread, it is impossible to accurately determine the position of the non-effective thread part, resulting in inaccurate inspection; (2) In order to measure effectiveness, it is necessary to select different positions for multiple measurements, and the inspection workload is large, resulting in low efficiency; (3) It cannot be completed together with the thread go gauge inspection, resulting in an increase in inspection procedures and low efficiency. Summary of the Invention

[0003] Based on this, it is necessary to provide a stud structure interface measurement device and method thereof that can improve the inspection accuracy and efficiency of the effective thread length.

[0004] A stud structure interface measurement device includes a main body structure; the main body structure has an upper limit value measurement end and a lower limit value measurement end that are opposite to each other; an upper limit value detection thread hole made according to a go gauge is formed on the end face of the upper limit value measurement end; a lower limit value detection thread hole made according to a go gauge is formed on the end face of the lower limit value measurement end; the depth of the upper limit value detection thread hole is greater than the depth of the lower limit value detection thread hole; an observation notch is formed on the side surface of the main body structure; the bottom surfaces of the upper limit value detection thread hole and the lower limit value detection thread hole are both flat surfaces, and both are exposed in the observation notch.

[0005] In the above stud structure interface measuring device, the depth of the upper limit detection threaded hole and the depth of the lower limit detection threaded hole are respectively consistent with the maximum limit value and the minimum limit value of the effective thread length of the stud structure to be detected. Since both the upper limit detection threaded hole and the lower limit detection threaded hole are made according to the go gauge, the above stud structure interface measuring device combines the detection of the effective thread length and the thread go gauge inspection, and completes the inspection of the effective thread length of the stud structure while performing the go gauge inspection on the stud of the stud structure, without the need for multiple point selection measurements, reducing the inspection process and workload. Moreover, during the detection of the effective thread length, the non-effective thread part cannot be screwed into the lower limit detection threaded hole and the upper limit detection threaded hole, so the number of thread teeth exposed outside the main structure after tightening is used to determine whether the effective thread length is qualified, effectively ensuring the accuracy of the detection. Therefore, the use of the above stud structure interface measuring device effectively improves the detection accuracy and detection efficiency of the effective thread length of the stud structure.

[0006] A stud structure interface measuring method is applied to the stud structure interface measuring device as described above. The stud structure interface measuring method includes the steps:

[0007] Screw the stud end of the stud structure to be detected into the lower limit detection threaded hole and tighten it;

[0008] Through the observation notch, confirm whether the front end face of the stud of the stud structure to be detected is in full contact with the bottom surface of the lower limit detection threaded hole;

[0009] If not in contact, it means that the effective thread length of the stud structure to be detected is unqualified;

[0010] If in full contact, confirm whether the number of thread teeth of the stud of the stud structure to be detected exposed outside the main structure is greater than the preset number of teeth;

[0011] If the number of thread teeth of the stud of the stud structure to be detected exposed outside the main structure is less than or equal to the preset number of teeth, it means that the effective thread length of the stud structure to be detected is unqualified;

[0012] If the number of thread teeth of the stud of the stud structure to be detected exposed outside the main structure is greater than the preset number of teeth, screw the stud end of the stud structure to be detected into the upper limit detection threaded hole and tighten it;

[0013] Through the observation notch, confirm whether the front end face of the stud of the stud structure to be detected is in full contact with the bottom surface of the upper limit detection threaded hole;

[0014] If not in contact, it means that the effective thread length of the stud structure to be detected is qualified;

[0015] If there is full contact, check whether the number of thread teeth of the stud of the stud structure to be detected exposed outside the main body structure is greater than a preset number of teeth;

[0016] If the number of thread teeth of the stud of the stud structure to be detected exposed outside the main body structure is greater than the preset number of teeth, it indicates that the effective thread length of the stud structure to be detected is unqualified;

[0017] If the number of thread teeth of the stud of the stud structure to be detected exposed outside the main body structure is less than or equal to the preset number of teeth, it indicates that the effective thread length of the stud structure to be detected is qualified.

[0018] In the above stud structure interface measurement method, since both the upper limit detection thread hole and the lower limit detection thread hole are made according to the go gauge, the above stud structure interface measurement device combines the effective thread length detection and the thread go gauge inspection, and completes the inspection of the effective thread length of the stud structure while performing the go gauge inspection on the stud of the stud structure, without the need for multiple point selection measurements, reducing the inspection process and workload. Moreover, during the effective thread length detection process, the non-effective thread part cannot be screwed into the lower limit detection thread hole and the upper limit detection thread hole, so the number of thread teeth exposed outside the main body structure after tightening is used to determine whether the effective thread length is qualified, effectively ensuring the accuracy of the detection. Therefore, by executing the above stud structure interface measurement method, the detection accuracy and efficiency of the effective thread length of the stud structure can be effectively improved. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the stud structure interface measurement device in a preferred embodiment of the present invention;

[0020] Figure 2 is Figure 1 A state schematic diagram when the stud structure interface measurement device shown performs effective thread length detection on the stud structure to be detected;

[0021] Figure 3 is Figure 1 A cross-sectional view of the stud structure interface measurement device shown;

[0022] Figure 4 is Figure 3 An A-A cross-sectional view of the stud structure interface measurement device shown;

[0023] Figure 5 It is a schematic flow diagram of the stud structure interface measurement method in an embodiment of the present invention.

[0024] Description of the reference numerals in the specific implementation manner: 100, stud structure interface measuring device; 110, main body structure; 111, upper limit value measuring end; 112, lower limit value measuring end; 120, upper limit value detecting threaded hole; 130, lower limit value detecting threaded hole; 140, observation notch; 150, first groove; 160, second groove; 170, anti-slip portion; 180, chamfer; 190, weight-reducing hole; 200, stud structure to be detected. Specific implementation manner

[0025] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0027] When describing the positional relationship, unless otherwise specified, when an element is referred to as being "on" another element, it can be directly on the other element or there can also be an intermediate element. It can also be understood that when an element is referred to as being "between" two elements, it can be the only one between the two elements or there can also be one or more intermediate elements.

[0028] When using "including", "having", and "comprising" described herein, unless a clear limiting term is used, such as "only", "consisting of", etc., another component can also be added. Unless otherwise mentioned, terms in the singular form can include the plural form and should not be understood as having a quantity of one.

[0029] Please refer to Figures 1 to 4, in the preferred embodiment of the present invention, the stud structure interface measuring device 100 includes a main structure 110. The main structure 110 has an upper limit measuring end 111 and a lower limit measuring end 112 which are opposite to each other. An upper limit detection threaded hole 120 made according to a go gauge is formed on the end face of the upper limit measuring end 111. A lower limit detection threaded hole 130 made according to a go gauge is formed on the end face of the lower limit measuring end 112. The depth of the upper limit detection threaded hole 120 is greater than the depth of the lower limit detection threaded hole 130. An observation notch 140 is formed on the side surface of the main structure 110. The bottom surfaces of the upper limit detection threaded hole 120 and the lower limit detection threaded hole 130 are both flat surfaces, and both are exposed in the observation notch 140. Specifically, a plane perpendicular to the depth direction of the observation notch 140 is defined as a projection plane, and the orthographic projections of the bottom surfaces of the upper limit detection threaded hole 120 and the lower limit detection threaded hole 130 on the projection plane are both located within the orthographic projection of the observation notch 140 on the projection plane, so that the staff can clearly see the bottom surfaces of the upper limit detection threaded hole 120 and the lower limit detection threaded hole 130 above and on the side of the observation notch 140 without looking for an observation angle.

[0030] Among them, the depth of the upper limit detection threaded hole 120 and the depth of the lower limit detection threaded hole 130 are respectively consistent with the maximum limit value and the minimum limit value of the effective thread length in the stud structure 200 to be detected. Since the bottom surfaces of the upper limit detection threaded hole 120 and the lower limit detection threaded hole 130 are both exposed in the observation notch 140, the staff can check the conditions of the bottom surface of the upper limit detection threaded hole 120 and the bottom surface of the lower limit detection threaded hole 130 through the observation notch 140.

[0031] Since the stud in the stud structure 200 to be detected cannot be processed by a threading method with a relief groove, during the threading process of the stud, the thread depth of the non-effective thread part will be shallower, and both the upper limit detection threaded hole 120 and the lower limit detection threaded hole 130 are made according to the go gauge, so only the effective thread part of the stud structure 200 to be detected can be screwed into the upper limit detection threaded hole 120 and the lower limit detection threaded hole 130. Therefore, when the stud end of the stud structure 200 to be detected is screwed into the upper limit detection threaded hole 120 or the lower limit detection threaded hole 130 and tightened, the non-effective thread part of the stud structure 200 to be detected can only be outside the main structure 110. At this time, the staff can determine whether the front end face of the stud of the stud structure 200 to be detected is in full contact with the bottom surface of the upper limit detection threaded hole 120 and the bottom surface of the lower limit detection threaded hole 130 respectively through the observation notch 140, and determine the number of thread teeth exposed outside the main structure 110 to determine whether the effective thread length is qualified.

[0032] Therefore, the above-mentioned stud structure interface measuring device 100 combines the inspection of the effective thread length and the go-gauge inspection. While performing the go-gauge inspection on the stud of the stud structure, it completes the inspection of the effective thread length of the stud structure, eliminating the need for multiple point selections for measurement, reducing the inspection procedures and workload. Moreover, during the detection of the effective thread length, the non-effective thread part cannot be screwed into the lower limit detection thread hole 130 and the upper limit detection thread hole 120. Therefore, whether the effective thread length is qualified is determined by the number of thread teeth exposed outside the main structure 110 after tightening, effectively ensuring the accuracy of the detection. Therefore, the use of the above-mentioned stud structure interface measuring device 100 effectively improves the detection accuracy and efficiency of the effective thread length of the stud structure.

[0033] In some embodiments, the upper limit detection thread hole 120 and the lower limit detection thread hole 130 are coaxially arranged. Coaxially arranging the upper limit detection thread hole 120 and the lower limit detection thread hole 130 not only reduces the volume of the main structure 110 and improves the convenience of using the stud structure interface measuring device 100, but also enables the bottom surfaces of the upper limit detection thread hole 120 and the lower limit detection thread hole 130 to be clearly visible even when the observation notch 140 formed on the main structure 110 is small.

[0034] In some embodiments, a first groove 150 is circumferentially formed at the bottom of the upper limit detection thread hole 120. The bottom surface of the upper limit detection thread hole 120 serves as part of the inner wall of the first groove 150. A second groove 160 is circumferentially formed at the bottom of the lower limit detection thread hole 130. The bottom surface of the lower limit detection thread hole 130 serves as part of the inner wall of the second groove 160. Among them, the first groove 150 and the second groove 160 are actually the relief grooves of the upper limit detection thread hole 120 and the lower limit detection thread hole 130 respectively. Therefore, the setting of the first groove 150 and the second groove 160 not only makes the processing of the upper limit detection thread hole 120 and the lower limit detection thread hole 130 more convenient, but also expands the bottom surfaces of the upper limit detection thread hole 120 and the lower limit detection thread hole 130. Thus, during the inspection of the effective thread length of the stud structure, the operator can more easily and accurately determine whether the front end face of the stud of the stud structure 200 to be detected after tightening is in full contact with the bottom surface of the upper limit detection thread hole 120 or the bottom surface of the lower limit detection thread hole 130 through the observation notch 140, improving the simplicity of the inspection of the effective thread length of the stud structure.

[0035] In an embodiment of the present invention, the main body structure 110 is a columnar structure. In the longitudinal direction of the main body structure 110, the length of the observation notch 140 is less than the length of the main body structure 110. Thus, the observation notch 140 is a groove formed in the middle of the main body structure 110 and is located between the end faces of the upper limit measurement end 111 and the lower limit measurement end 112. The outer wall shapes of the upper limit measurement end 111 and the lower limit measurement end 112 are both columnar, so as to facilitate the staff to place the stud structure 200 to be detected

[0036] In another embodiment of the present invention, the observation notch 140 penetrates through the end face of the upper limit measurement end 111 and the end face of the lower limit measurement end 112. Thus, during the processing of the observation notch 140, only a part of the side surface of the main body structure 110 needs to be completely cut off, which is convenient for processing and simplifies the processing technology of the stud structure interface measuring device 100.

[0037] In some embodiments, the main body structure 110 is a cylindrical structure. An anti-slip portion 170 is formed on the outer surface of the main body structure 110. Among them, the anti-slip portion 170 can be a convex rib, a convex point, a groove, a pattern, etc. formed on the outer surface of the main body structure 110, or an anti-slip layer such as an elastic rubber layer laid on the outer surface of the main body structure 110, or a protective structure such as a rubber sleeve sleeved on the outer surface of the main body structure 110. The setting of the anti-slip portion 170 facilitates the staff to screw the stud end of the stud structure 200 to be detected into the upper limit detection threaded hole 120 and the lower limit detection threaded hole 130, and avoids the situation of hand slipping during the screwing process, which may cause hitting the hand or the stud structure interface measuring device 100 to fall, thereby improving the use safety of the above-mentioned stud structure interface measuring device 100.

[0038] Specifically, the anti-slip portion 170 is an anti-slip pattern formed on the surface of the main body structure 110. More specifically, the protective portion is an anti-slip mesh pattern. Setting the anti-slip portion 170 as an anti-slip pattern not only improves the firmness of the protective portion on the main body structure 110, reduces the probability of the protective portion falling off, wearing and falling off from the main body structure 110, extends the service life, but also makes the processing of the anti-slip portion 170 relatively simple.

[0039] In some embodiments, a weight-reducing hole 190 communicating with the lower limit detection threaded hole 130 is opened at the bottom surface of the upper limit detection threaded hole 120. Among them, the diameter of the weight-reducing hole 190 is respectively smaller than the bottom diameters of the upper limit detection threaded hole 120 and the lower limit detection threaded hole 130. The weight-reducing hole 190 is mainly used to reduce the weight of the main body structure 110, so that the above-mentioned stud structure interface measuring device 100 is lighter and improves the use convenience of the stud structure interface measuring device 100.

[0040] In some embodiments, chamfers 180 are provided along the circumferential direction of the upper limit value measurement end 111 and the lower limit value measurement end 112 to remove sharpness at the corners of the upper limit value measurement end 111 and the lower limit value measurement end 112, reducing the probability of the sharpness of the upper limit value measurement end 111 and the lower limit value measurement end 112 scratching the staff during use and improving the safety of using the stud structure interface measuring device 100.

[0041] Based on the same invention, an embodiment of the present application also provides a method for measuring a stud structure interface. The implementation solution provided by this method to solve the problem is similar to the implementation solution described in the above stud structure interface measuring device 100. Therefore, the specific limitations in the embodiment of the stud structure interface measuring method provided below can refer to the limitations on the stud structure interface measuring device 100 in the above text, and will not be elaborated here.

[0042] Please refer to Figure 5 , in an exemplary embodiment, a method for measuring a stud structure interface is provided. The method is applied to the stud structure interface measuring device 100. The stud structure interface measuring method includes steps S10 to step S102.

[0043] Step S10, screw the stud end of the stud structure 200 to be detected into the lower limit value detection threaded hole 130 and tighten it.

[0044] Step S20, confirm whether the front end face of the stud of the stud structure 200 to be detected is in full contact with the bottom surface of the lower limit value detection threaded hole 130 by observing the notch 140.

[0045] Step S30, if not in contact, it means that the effective thread length of the stud structure 200 to be detected is unqualified.

[0046] When the stud end of the stud structure 200 to be detected is screwed into the lower limit value detection threaded hole 130 and tightened, if the front end face of the stud of the stud structure 200 to be detected is not in contact with the bottom surface of the lower limit value detection threaded hole 130, it means that the effective thread length of the stud structure 200 to be detected is less than the depth of the lower limit value detection threaded hole 130, that is, the effective thread length is less than the minimum limit value, so it is unqualified.

[0047] Step S40, if in full contact, confirm whether the number of thread teeth of the stud of the stud structure 200 exposed outside the main body structure 110 is greater than the preset number of teeth.

[0048] It should be noted that the preset number of teeth here is determined according to the processing accuracy of the current stud processing equipment, and the preset number of teeth is also related to the tail withdrawal amount of the non-effective thread part, and usually approaches or is slightly greater than the number of thread teeth of the non-effective thread part.

[0049] Step S50, if the number of thread teeth of the stud of the stud structure 200 to be detected exposed outside the main body structure 110 is less than or equal to the preset number of teeth, it indicates that the effective thread length of the stud structure 200 to be detected is unqualified.

[0050] After the front end face of the stud of the stud structure 200 to be detected is in full contact with the bottom surface of the lower limit detection threaded hole 130, if the number of thread teeth of the stud structure 200 to be detected exposed outside the main body structure 110 is less than or equal to the preset number of teeth, it indicates that the effective thread length of the stud structure 200 to be detected is still less than the minimum limit value and is unqualified.

[0051] Step S60, if the number of thread teeth of the stud of the stud structure 200 to be detected exposed outside the main body structure 110 is greater than the preset number of teeth, screw the stud end of the stud structure 200 to be detected into the upper limit detection threaded hole 120 and tighten it.

[0052] Step S70, confirm whether the front end face of the stud of the stud structure 200 to be detected is in full contact with the bottom surface of the upper limit detection threaded hole 120 by observing the notch 140.

[0053] Step S80, if not in contact, it indicates that the effective thread length of the stud structure 200 to be detected is qualified.

[0054] After the stud end of the stud structure 200 to be detected is screwed into the upper limit detection threaded hole 120 and tightened, if the front end face of the stud of the stud structure 200 to be detected is not in contact with the bottom surface of the upper limit detection threaded hole 120, it indicates that the effective thread length of the stud structure 200 to be detected is less than the depth of the upper limit detection threaded hole 120, that is, the effective thread length is less than the maximum limit value, so it is qualified.

[0055] Step S90, if in full contact, confirm whether the number of thread teeth of the stud of the stud structure 200 to be detected exposed outside the main body structure 110 is greater than the preset number of teeth.

[0056] Step S101, if the number of thread teeth of the stud of the stud structure 200 to be detected exposed outside the main body structure 110 is greater than the preset number of teeth, it indicates that the effective thread length of the stud structure 200 to be detected is unqualified.

[0057] After the front end face of the stud of the stud structure 200 to be detected is in full contact with the bottom surface of the upper limit detection threaded hole 120, if the number of thread teeth of the stud structure 200 to be detected exposed outside the main body structure 110 is greater than the preset number of teeth, it indicates that the effective thread length of the stud structure 200 to be detected is greater than the maximum limit value, so it is unqualified.

[0058] Step S102, if the number of thread teeth of the stud of the stud structure 200 to be detected exposed outside the main body structure 110 is less than or equal to the preset number of teeth, it indicates that the effective thread length of the stud structure 200 to be detected is qualified.

[0059] When the front end face of the stud of the stud structure 200 to be detected is in full contact with the bottom surface of the upper limit detection threaded hole 120, and the number of thread teeth of the stud structure 200 exposed outside the main structure 110 is less than or equal to the preset number of teeth, it indicates that the effective thread length of the stud structure 200 to be detected is less than the maximum limit value, so it is qualified.

[0060] In practical applications, according to the machining accuracy of existing CNC machine tools, the tail withdrawal amount of the non-effective thread part generally does not exceed two thread teeth, so the preset number of teeth is two.

[0061] The above-mentioned stud structure interface measurement method, by executing steps S10 to S102, is used to check whether the effective thread length of the stud structure 200 to be detected is between the designed maximum limit value and minimum limit value, so as to achieve the purpose of checking the effective thread length of the stud structure 200 to be detected.

[0062] Since both the upper limit detection threaded hole 120 and the lower limit detection threaded hole 130 are made according to the go gauge, the above-mentioned stud structure interface measurement device 100 combines the effective thread length detection and the thread go gauge inspection, and completes the inspection of the effective thread length of the stud structure while performing the go gauge inspection on the stud of the stud structure, without the need for multiple point selection measurements, reducing the inspection process and workload. Moreover, during the effective thread length detection process, the non-effective thread part cannot be screwed into the lower limit detection threaded hole 130 and the upper limit detection threaded hole 120, so it is determined whether the effective thread length is qualified by the number of thread teeth exposed outside the main structure 110 after tightening, effectively ensuring the accuracy of the detection. Therefore, by executing the above-mentioned stud structure interface measurement method, the detection accuracy and detection efficiency of the effective thread length of the stud structure can be effectively improved.

[0063] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0064] The above-described embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A stud structure interface measurement device, characterized in that, It includes a main body structure; the main body structure has opposite upper limit measurement ends and lower limit measurement ends; on the end face of the upper limit measurement end, an upper limit detection threaded hole made according to a go gauge is formed; on the end face of the lower limit measurement end, a lower limit detection threaded hole made according to a go gauge is formed; the depth of the upper limit detection threaded hole is greater than the depth of the lower limit detection threaded hole; an observation notch is formed on the side surface of the main body structure; the bottom surfaces of the upper limit detection threaded hole and the lower limit detection threaded hole are both flat surfaces, and both are exposed within the observation notch.

2. The stud structure interface measuring device according to claim 1, characterized in that The upper limit detection threaded hole and the lower limit detection threaded hole are coaxially arranged.

3. The stud structure interface measuring device according to claim 1, wherein, A first groove is circumferentially formed at the bottom of the upper limit detection threaded hole; the bottom surface of the upper limit detection threaded hole serves as part of the inner wall of the first groove; a second groove is circumferentially formed at the bottom of the lower limit detection threaded hole; the bottom surface of the lower limit detection threaded hole serves as part of the inner wall of the second groove.

4. The stud structure interface measuring device according to claim 1, wherein The main body structure is a columnar structure; in the longitudinal direction of the main body structure, the length of the observation notch is less than the length of the main body structure.

5. The stud structure interface measuring device according to claim 1, characterized in that The observation notch penetrates through the upper limit measurement end face and the lower limit measurement end face.

6. The stud structure interface measuring device according to claim 1, characterized in that, The main body structure is a cylindrical structure; an anti-slip portion is formed on the outer surface of the main body structure.

7. The stud structure interface measuring device according to claim 6, characterized in that, The anti-slip portion is formed by anti-slip lines on the surface of the main body structure.

8. The stud structure interface measuring device according to claim 1, wherein, A weight-reducing hole communicating with the lower limit detection threaded hole is formed at the bottom surface of the upper limit detection threaded hole.

9. The stud structure interface measuring device according to claim 1, wherein, Chamfers are circumferentially provided at both the upper limit measurement end and the lower limit measurement end.

10. A measuring method for a stud structure interface, characterized in that, Applied to the stud structure interface measuring device according to any one of claims 1 to 9, the stud structure interface measuring method includes the steps: Screw the stud end of the stud structure to be detected into the lower limit detection threaded hole and tighten it. Through the observation notch, confirm whether the front end face of the stud of the stud structure to be detected is in full contact with the bottom surface of the lower limit detection threaded hole. If not in contact, it means that the effective thread length of the stud structure to be detected is unqualified. If in full contact, confirm whether the number of thread teeth of the stud of the stud structure to be detected exposed outside the main body structure is greater than a preset number of teeth. If the number of thread teeth of the stud of the stud structure to be detected exposed outside the main body structure is less than or equal to the preset number of teeth, it means that the effective thread length of the stud structure to be detected is unqualified. If the number of thread teeth of the stud of the stud structure to be detected exposed outside the main body structure is greater than the preset number of teeth, screw the stud end of the stud structure to be detected into the upper limit detection threaded hole and tighten it. Through the observation notch, confirm whether the front end face of the stud of the stud structure to be detected is in full contact with the bottom surface of the upper limit detection threaded hole. If not in contact, it means that the effective thread length of the stud structure to be detected is qualified. If in full contact, confirm whether the number of thread teeth of the stud of the stud structure to be detected exposed outside the main body structure is greater than a preset number of teeth. If the number of thread teeth of the stud of the stud structure to be detected exposed outside the main body structure is greater than the preset number of teeth, it means that the effective thread length of the stud structure to be detected is unqualified. If the number of thread teeth of the stud of the stud structure to be detected exposed outside the main body structure is less than or equal to the preset number of teeth, it means that the effective thread length of the stud structure to be detected is qualified.

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