Threaded hole detection device

Abstract

The utility model relates to the technical field of assembly detection, in particular to a threaded hole detection device. A threaded hole detection device provided by the present disclosure comprises a detection sleeve, a detection member and a comparison member, the detection sleeve is movably sleeved on the detection member, one end of the detection sleeve is provided with a threaded connection portion, the detection member is provided with a detection end and a reading end, the detection end and the threaded connection portion are arranged at the same side, and the comparison member is arranged on the threaded connection portion. The reading end is provided with scale lines, and the length of the detection member is larger than that of the detection sleeve. The comparison piece is provided with a plurality of comparison holes, and the depths of the plurality of comparison holes are arranged in an arithmetic progression. According to the technical scheme, the installation depth can be accurately positioned in a narrow space, and it is ensured that the installation size is accurate.

Description

Technical Field

[0001] The present disclosure relates to the technical field of assembly detection, and particularly to a threaded hole detection device. Background Art

[0002] In the field of control systems, the state of a motion mechanism is mainly transmitted to the control system by signals collected by various sensors, so as to realize the control of the motion state and motion position of the mechanism. The proximity switch sensor is a commonly used sensor in the control system. The sensor sends out signals through the induction surface. Metals entering the magnetic field area will absorb energy. When a metal target approaches this magnetic field and reaches the induction distance, the sensor gives a signal indicating that the target is in place. Such sensors are mainly in the form of a cylindrical structure, with external threads and are installed and fixed by screwing. The induction surface of the proximity switch sensor is at the end face, and there are electrical components inside.

[0003] When the sensor works, the closer the distance between the induction end face of the sensor and the sensed part, the more stable the induction signal. In actual operation of the sensor, it is necessary to ensure both the stability of the induction signal and prevent the induction end face of the sensor from colliding with the sensed part. Therefore, it is necessary to reasonably arrange the installation dimensions of the sensor. In some cases where the installation space is limited, it is difficult to control the installation dimensions of the sensor. It is necessary to first accurately detect the depth of the sensor installation hole, and then fix the installation depth of the sensor and then install the sensor in place to ensure the stable and reliable operation of the sensor. Utility Model Content

[0004] The present disclosure aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0005] To this end, the present disclosure provides a threaded hole detection device, including a detection sleeve, a detection piece, and a comparison piece. The detection sleeve is movably sleeved on the detection piece. One end of the detection sleeve is provided with a threaded connection portion. The detection piece has a detection end and a reading end. The detection end is arranged on the same side as the threaded connection portion. The reading end is provided with scale lines, and the length of the detection piece is greater than the length of the detection sleeve. The comparison piece is provided with a plurality of comparison holes, and the depths of the plurality of comparison holes are arranged in an arithmetic progression.

[0006] In a feasible implementation manner, the threaded connection portion is provided with a plurality of length adjustment segments, and the plurality of length adjustment segments are integrally formed or detachably connected.

[0007] In a feasible implementation manner, the threaded connection portion is arranged as a segmented structure, including a plurality of threaded connectors, and the plurality of threaded connectors are screwed or clamped and fixed.

[0008] In a feasible implementation manner, the threaded connection part is arranged as a telescopic structure, including a plurality of threaded connectors, and a telescopic member is arranged between every two of the threaded connectors, and the telescopic member is used to move adjacent threaded connectors closer to or farther away from each other.

[0009] In a feasible implementation manner, the detection sleeve is provided with a first bending part, and the detection member is provided with a second bending part. In the assembled state of the detection sleeve and the detection member, the positions of the first bending part and the second bending part correspond to each other.

[0010] In a feasible implementation manner, a fixing member is further included, and the fixing member is arranged on the detection sleeve, and the fixing member is used to fix the relative positions of the detection member and the detection sleeve.

[0011] In a feasible implementation manner, the detection member is arranged as a detection screw, and the detection screw includes a screw body and a screw head, and the scale line is arranged on one side of the screw body close to the screw head, and the end of the detection screw is arranged as a flat head.

[0012] In a feasible implementation manner, the length of the detection screw is adjustable.

[0013] In a feasible implementation manner, a flexible protection pad is arranged on the surface of the detection end in contact with the moving mechanism.

[0014] In a feasible implementation manner, the spacing of the scale lines is a fixed value.

[0015] The above description is only an overview of the technical solutions provided by the present disclosure. In order to be able to understand the technical means of the present disclosure more clearly, it can be implemented according to the content of the description. And in order to make the above and other features and effects of the present disclosure more obvious and understandable, the following specifically gives embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure.

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0018] Upon reading the following detailed description of the exemplary embodiments, various other advantages and benefits will become apparent to those of ordinary skill in the art. The drawings are only for the purpose of illustrating the exemplary embodiments and are not considered to be a limitation of the present application. Also, throughout the drawings, the same reference numerals are used to denote the same components. In the drawings:

[0019] Figure 1 is a schematic structural diagram of the detection state of the present disclosure;

[0020] Figure 2 is a schematic structural diagram of the detection sleeve and the detection piece of the present disclosure;

[0021] Figure 3 is a schematic structural diagram of the detection piece of the present disclosure;

[0022] Figure 4 is a schematic structural diagram of the comparison piece of the present disclosure;

[0023] Figure 5 is a schematic structural diagram of the sensor assembled in the sensor mounting hole.

[0024] Wherein, Figures 1 to 5 the corresponding relationship between the reference numerals and the component names in the figure is:

[0025] 100 - sensor; 200 - positioning nut; 300 - locking nut; 400 - motion mechanism;

[0026] 1 - detection sleeve; 11 - threaded connection part; 22 - detection piece; 21 - detection end; 22 - reading end; 23 - scale line; 24 - nail head; 3 - comparison piece; 31 - comparison hole. Detailed Embodiments

[0027] In order to be able to more clearly understand the above - mentioned objects, features, and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0028] In the following description, many specific details are set forth in order to fully understand the present disclosure, but the present disclosure can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present disclosure, rather than all of the embodiments.

[0029] When the sensor is working, the closer the distance between the sensing end face of the sensor and the sensed part, the more stable the sensing signal. When the sensor is actually working, it is necessary to ensure the stability of the sensing signal and prevent the sensing end face of the sensor from colliding with the sensed part. Therefore, it is necessary to reasonably arrange the installation dimensions of the sensor. In some cases where the installation space is limited, it is difficult to control the installation dimensions of the sensor. It is necessary to first accurately detect the depth of the sensor installation hole, and then fix the installation depth of the sensor and install the sensor in place to ensure the stable and reliable operation of the sensor. Existing ranging tools such as probes are restricted when entering a narrow space and may even be unable to enter. Even if they can enter the space, the depth data of the hole measured by the hand-held alignment method has poor accuracy. When the clearance between the sensor and the moving mechanism is in the millimeter range, this inaccurate depth data of the hole cannot meet the assembly requirements.

[0030] Based on this, the embodiments of the present disclosure provide a threaded hole detection device. One end of the detection sleeve 1 of the present disclosure is provided with a threaded connection portion 11, and the threaded connection portion 11 is used for screwing with the sensor installation hole to be detected, thereby realizing the fixation of the relative position, and solving the problem that the detection data is inaccurate due to the inability of the detection personnel to fix the detection part in a narrow space or a limited space. During the detection, the detection sleeve 1 is sleeved on the detection part 2, and the two can be connected by means of sliding fit, damping fit or screwing, etc. The present disclosure specifically selects the damping fit method, so that when the detection part 2 is detected in cooperation with the detection sleeve 1, the position of the detection part 2 relative to the detection sleeve 1 can be fixed, so that the detection personnel do not need to always hold the detection part 2 and the moving mechanism 400, which is convenient for accurate reading. When the detection part 2 measures the depth data of the sensor installation hole to be detected, the comparison holes 31 arranged in an arithmetic progression on the comparison part 3 are used for assembly with the sensor, and the positioning nut 200 is used to fix the installation position, and then it is installed on the sensor installation hole to be detected.

[0031] The following will specifically describe the threaded hole detection device through specific embodiments:

[0032] Refer to Figures 1 to 5 As shown, the present disclosure provides a threaded hole detection device, including a detection sleeve 1, a detection part 2 and a comparison part 3. The detection sleeve 1 is movably sleeved on the detection part 2. One end of the detection sleeve 1 is provided with a threaded connection portion 11. The detection part 2 has a detection end 21 and a reading end 22. The detection end 21 is arranged on the same side as the threaded connection portion 11. The reading end 22 is provided with scale lines 23, and the length of the detection part 2 is greater than the length of the detection sleeve 1; the comparison part 3 is provided with a plurality of comparison holes 31, and the depths of the plurality of comparison holes 31 are arranged in an arithmetic progression.

[0033] One end of the detection sleeve 1 of the present disclosure is provided with a threaded connection portion 11, and the threaded connection portion 11 is used for screwing connection with the installation hole of the sensor to be detected, thereby realizing the fixation of the relative position, and solving the problem that the detection personnel cannot fix the detection piece in a narrow space or a restricted space, resulting in inaccurate detection data. During detection, the detection sleeve 1 is sleeved on the detection piece 2, and the two can be connected by means of sliding fit, damping fit or screwing, etc. The present disclosure specifically selects the damping fit method, so that when the detection piece 2 cooperates with the detection sleeve 1 for detection, the position of the detection piece 2 relative to the detection sleeve 1 can be fixed, so that the detection personnel do not have to always hold the detection piece 2 and the moving mechanism 400, which is convenient for accurate reading. When the detection piece 2 measures the depth data of the installation hole of the sensor to be detected, the comparison holes 31 arranged in an arithmetic progression on the comparison piece 3 are used for assembling with the sensor, and the positioning nut 200 is used to fix the installation position, and then it is installed on the installation hole of the sensor to be detected.

[0034] Specifically, as Figure 1 shown, before detecting the installation hole of the sensor to be detected, first press the sensing end face of the moving mechanism 400 against the end face of the installation hole of the sensor to be detected and keep it. Install the detection sleeve 1 on the installation hole of the sensor to be detected, ensure that the end face of the thread root of the detection sleeve 1 is in close contact with the end face of the installation hole of the sensor to be detected, then install the detection piece 2 through the internal thread of the detection sleeve 1, and press the end face of the detection piece 2 against the end face of the moving mechanism 400. At this time, there is a certain gap between the reading end 22 at the root of the detection piece 2 and the end face of the detection sleeve 1. This gap is as Figure 1 shown, set as the reading value C, and this reading value C can be directly obtained according to the position of the scale line 23 of the detection piece 2. Specifically, the distance between the scale lines 23 can be set as a fixed value or other numerical arrangement methods. The present disclosure specifically selects the setting method of a fixed value. Further, when the accuracy of the depth detection value of the installation hole of the sensor to be detected is relatively high, a feeler gauge can be used to fill the gap, and by calculating the number and specifications of the thin steel plates used by the feeler gauge, a more accurate reading value C can be calculated. According to Figures 1 to 3 shown, the depth L of the installation hole of the sensor to be detected = A - B - C. According to the calculated depth L of the threaded hole, select a threaded hole with an appropriate depth on the comparison piece 3 to ensure that the difference between the calculated depth L of the threaded hole and the depth of the threaded hole on the comparison piece 3 is within the stable sensing range of the sensor. Screw the sensor into the threaded hole of the comparison piece 3 to ensure that the end face of the sensor is flush with the lower end face of the threaded hole of the comparison piece 3, then screw the positioning nut 200 on the sensor into a position flush with the upper end face of the threaded hole of the comparison piece 3. After the positioning nut 200 is locked with thread glue, take out the whole sensor 100 from the comparison piece 3, and then install the sensor 100 in the sensor installation hole until the end face of the threaded hole is in close contact with the end face of the positioning nut. Finally, use the locking nut 300 and the installation sleeve to lock and fix the installation size of the sensor.

[0035] In some embodiments, the threaded connection portion 11 is provided with a plurality of length adjustment segments, and the plurality of length adjustment segments are integrally formed or detachably connected.

[0036] In this embodiment, in order to increase the adaptability of the threaded connection portion 11 and be able to match the mounting holes of the sensors to be detected with more hole depths, the present disclosure provides the threaded connection portion 11 with a plurality of adjustment segments, and the plurality of length adjustment segments are integrally formed or detachably connected. Specifically, the integrally formed plurality of length segments described in the present disclosure are non-detachable structures, and the plurality of length adjustment segments are connected in the same axial direction by using telescopic members and clamping methods; the split connection method of the present disclosure is a detachable type, and the plurality of length adjustment segments are screwed or clamped in the same axial direction. Taking the split connection as an example, when the hole depth is relatively deep, all the length adjustment segments are connected together and screwed with the mounting hole of the sensor to be detected to ensure that the front end of the threaded connection portion 11 does not exceed the other orifice of the mounting hole of the sensor to be detected when screwed in to the maximum extent, so as to ensure that the sensing surface of the moving mechanism 400 can be in close contact with the mounting hole of the sensor to be detected. When the hole depth is relatively shallow, one or more length adjustment segments can be assembled to adapt to the hole depth. Further, the threaded connection portion 11 is provided as a segmented structure, including a plurality of threaded connectors, and the plurality of threaded connectors are screwed or clamped and fixed.

[0037] In some embodiments, the threaded connection portion 11 is provided as a telescopic structure, including a plurality of threaded connectors, and a telescopic member is provided between every two threaded connectors, and the telescopic member is used to move adjacent threaded connectors closer or farther away.

[0038] In some embodiments, the detection sleeve 1 is provided with a first bending portion, and the detection member 2 is provided with a second bending portion. In the assembled state of the detection sleeve 1 and the detection member 2, the positions of the first bending portion and the second bending portion correspond to each other.

[0039] In this embodiment, in order to be able to meet the detection operations in narrow spaces and restricted spaces, the detection sleeve 1 of the present disclosure is provided with a first bending portion, and the detection member 2 is provided with a second bending portion. In the assembled state of the detection sleeve 1 and the detection member 2, the positions of the first bending portion and the second bending portion correspond to each other. When in use, such as Figure 1As shown, there are obstructions in front of and behind the operable space. At this time, if the present disclosure is a monolithic rigid structure and is to be placed in this part, the insertion angle may not be satisfied, resulting in the present disclosure being unable to enter this narrow space. Therefore, the present disclosure is provided with a first bending portion and a second bending portion, that is to say, both the detection sleeve 1 and the detection member are bendable structures, and can be bent when passing through a narrow entrance to enter this space. In the assembled state of the detection sleeve 1 and the detection member 2, the positions of the first bending portion and the second bending portion correspond to each other to facilitate simultaneous bending when both are stressed for easy operation. Specifically, the first bending portion can be selected from components such as rubber sleeves or springs that have the ability to bend and are hollow; the second bending portion can be selected from rubber posts or the detection member can be set as a structure in which two parts are hinged. It can be understood that the second bending portion provided on the detection member 2 requires a certain supporting force, and shaking or an overly soft bending state should be avoided.

[0040] In some embodiments, it further includes a fixing member. The fixing member is provided on the detection sleeve 1, and the fixing member is used to fix the relative position of the detection member 2 and the detection sleeve 1. In this embodiment, in order to achieve better accuracy of detection data, the present disclosure provides a fixing member on the detection sleeve 1. The fixing member can be selected from fasteners such as clamps or snap connectors such as clips. For example, a clamp is used to increase the resistance between the detection sleeve 1 and the detection member 2 to fix it, or a second clip directly passes through the wall of the detection sleeve 1 to contact the detection member 2 to achieve snap fixation.

[0041] In some embodiments, the detection member 2 is set as a detection screw. The detection screw includes a screw body and a screw head 24. A scale line 23 is provided on the side of the screw body close to the screw head 24, and the end of the detection screw is set as a flat head. In this embodiment, setting the detection member 2 as a detection screw can be screwed and fixed with the detection sleeve 1, that is, screwed in and out in the detection sleeve 1, and the screw head 24 serves as the driving part for the rotation of the screw body. The screwing connection method can better fix the relative position of the detection member 2 and the detection sleeve 1, improving the accuracy of detection. Further, in order to better adapt to the depths of various types of holes to be detected, the length of the detection screw is adjustable to avoid inaccurate readings when the hole depth is too large or too small.

[0042] In some embodiments, a flexible protective pad is provided on the surface of the detection end 21 in contact with the moving mechanism. In this embodiment, a flexible protective pad is provided on the surface of the detection end 21 of the present disclosure in contact with the moving mechanism 400, thereby protecting the moving mechanism 400 from the rigid damage caused by the detection end 21 to the moving mechanism 400 during detection. It should be noted that in order to improve the accuracy of detection, the thickness of the flexible protective pad needs to be calculated in the detection data, and the flexible protective pad can also not be a separate part protruding from the detection member 2, but be a part of the length A of the detection member 2.

[0043] In the present disclosure, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "plural" means two or more, unless otherwise clearly defined. Terms such as "installed", "connected", "joined", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "joined" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0044] In the description of the present disclosure, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present disclosure.

[0045] In the description of this specification, the description of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0046] The above are only the preferred embodiments of the present disclosure and are not used to limit the present disclosure. For those skilled in the art, the present disclosure can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A threaded hole detection device, characterized in that: It includes a detection sleeve, a detection piece and a comparison piece, wherein the detection sleeve is movably mounted on the detection piece, and a threaded connection portion is provided at one end of the detection sleeve, wherein: The detection member has a detection end and a reading end, the detection end is arranged on the same side as the threaded connection portion, the reading end is provided with a scale line, and the length of the detection member is greater than the length of the detection sleeve; The contrast piece is provided with a plurality of contrast holes, and the depths of the plurality of contrast holes are arranged in an arithmetic progression.

2. The threaded hole detection device according to claim 1, characterized in that: The threaded connection portion is provided with a plurality of length adjustment sections, and the plurality of length adjustment sections are integrally formed or separately connected.

3. The threaded hole detection device according to claim 1, characterized in that: The threaded connection portion is configured as a segmented structure, including a plurality of threaded connections, and the plurality of threaded connections are screwed or clamped together for fixation.

4. The threaded hole detection device according to claim 1, characterized in that: The threaded connection part is configured as a telescopic structure, including a plurality of threaded connection members, a telescopic member is disposed between every two threaded connection members, and the telescopic member is used to move adjacent threaded connection members closer to or farther away from each other.

5. The threaded hole detection device according to claim 1, characterized in that: The detection sleeve is provided with a first bending portion, and the detection member is provided with a second bending portion. When the detection sleeve and the detection member are assembled, the positions of the first bending portion and the second bending portion correspond to each other.

6. The threaded hole detection device according to claim 1, characterized in that: It also includes a fixing member, which is arranged on the detection sleeve and is used to fix the relative position of the detection member and the detection sleeve.

7. The threaded hole detection device according to claim 1, characterized in that: The detection piece is configured as a detection screw, which includes a screw body and a nail cap. The scale line is arranged on a side of the screw body close to the nail cap, and the end of the detection screw is configured as a flat head.

8. The threaded hole detection device according to claim 7, characterized in that: The length of the detection screw is adjustable.

9. The threaded hole detection device according to any one of claims 1 to 8, characterized in that: A flexible protective pad is arranged on the surface of the detection end that contacts the motion mechanism.

10. The threaded hole detection device according to claim 1, characterized in that: The interval between the scale lines is a fixed value.

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