CN113503790B - Thread detection device - Google Patents
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- CN113503790B CN113503790B CN202110784249.6A CN202110784249A CN113503790B CN 113503790 B CN113503790 B CN 113503790B CN 202110784249 A CN202110784249 A CN 202110784249A CN 113503790 B CN113503790 B CN 113503790B
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- 238000001514 detection method Methods 0.000 title claims abstract description 133
- 238000006073 displacement reaction Methods 0.000 claims abstract description 46
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- 238000007689 inspection Methods 0.000 description 4
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
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Abstract
本申请实施例公开了一种螺纹检测装置，其包括支撑机构、控制装置、位移检测机构、转动驱动装置、转动机构、浮动机构和螺纹检测工具。所述转动机构可转动地设置在所述支撑机构上。所述转动驱动装置与所述转动机构传动连接。所述转动驱动装置与所述控制装置相连接。并且，所述转动机构包括一轴向浮动内轴。所述浮动机构可拆卸地设置在所述轴向浮动内轴上。所述螺纹检测工具连接在所述浮动机构上。所述位移检测机构设置在所述支撑机构上并与所述控制装置相连接。本申请实施例的螺纹检测装置能够通过将待检测工件与螺纹检测工具的初始旋合点位置作为检测螺纹参数的起始位置，可以大大提高螺纹参数检测的准确度、可靠性，保证检测质量；并且可以适用于不同种类螺纹(标准件和非标准件)的检测。
The embodiment of the present application discloses a thread detection device, which includes a support mechanism, a control device, a displacement detection mechanism, a rotation drive device, a rotation mechanism, a floating mechanism and a thread detection tool. The rotation mechanism is rotatably arranged on the support mechanism. The rotation drive device is transmission-connected to the rotation mechanism. The rotation drive device is connected to the control device. In addition, the rotation mechanism includes an axial floating inner shaft. The floating mechanism is detachably arranged on the axial floating inner shaft. The thread detection tool is connected to the floating mechanism. The displacement detection mechanism is arranged on the support mechanism and connected to the control device. The thread detection device of the embodiment of the present application can greatly improve the accuracy and reliability of thread parameter detection and ensure the detection quality by using the initial screwing point position of the workpiece to be detected and the thread detection tool as the starting position for detecting thread parameters; and can be applicable to the detection of different types of threads (standard parts and non-standard parts).
Description
Technical Field
The application relates to the technical field of thread detection, in particular to a thread detection device.
Background
The existing bolt has a chamfer at the end part, the thread at the chamfer is not a complete thread, and the existing thread detection equipment does not consider the problem, so that the detected thread parameter has a large deviation from the actual thread parameter, and the accuracy and the reliability of the thread detection result are poor.
Disclosure of Invention
Aiming at the defects of the prior art, the application provides a thread detection device.
The thread detection device comprises a supporting mechanism, a control device, a displacement detection mechanism, a rotation driving device, a rotation mechanism, a floating mechanism and a thread detection tool. The rotating mechanism is rotatably arranged on the supporting mechanism. The rotation driving device is in transmission connection with the rotation mechanism. The rotation driving device is connected with the control device. And, the rotating mechanism includes an axially floating inner shaft. The floating mechanism is detachably disposed on the axially floating inner shaft. The thread detection tool is connected to the floating mechanism. The displacement detection mechanism is arranged on the supporting mechanism and is connected with the control device.
According to a preferred embodiment of the application, the thread detection device further comprises a lifting device. The lifting device is connected with the control device. The supporting mechanism is arranged on the lifting device.
According to a preferred embodiment of the application, the rotation mechanism comprises the axially floating inner shaft, the hollow outer shaft, the spring collar, the first spring and the second spring. The hollow outer shaft is rotatably mounted on the support mechanism by a first bearing and a second bearing. The hollow outer shaft is sleeved outside the axially floating inner shaft in a manner of being capable of relatively moving along the axial direction. And the axially floating inner shaft, the hollow outer shaft and the spring retainer ring are connected through a first transmission mechanism, so that the hollow outer shaft can drive the axially floating inner shaft to rotate. The first spring is arranged between the first bearing and the spring retainer ring, and the second spring is arranged between the second bearing and the spring retainer ring.
According to a preferred embodiment of the application, one end of the hollow outer shaft is abutted against the inner ring end face of the first bearing through a limit boss. The other end of the hollow outer shaft is connected to the supporting mechanism through the third bearing, and a lock nut which abuts against the inner ring end face of the third bearing is arranged on the hollow outer shaft.
According to a preferred embodiment of the application, the first transmission means comprise a plurality of first pin holes axially arranged on the axially floating inner shaft, a strip-shaped hole axially arranged on the hollow outer shaft, two second pin holes symmetrically arranged on the spring retainer and a connecting pin. The connecting pin is connected in the strip-shaped hole, the first pin hole and the second pin hole in a penetrating mode, so that the hollow outer shaft can drive the axially floating inner shaft to rotate. And a first locking screw is arranged at each of the two second pin holes.
According to a preferred embodiment of the present application, the displacement detection mechanism comprises a displacement sensor, a slide rail, a slider and a fourth bearing. The displacement sensor and the sliding rail are fixed on the supporting mechanism. The sliding block is slidably arranged on the sliding rail, and the sliding block is connected with a displacement rod on the displacement sensor. The inner ring of the fourth bearing is fixed on the axially floating inner shaft. And the outer ring of the fourth bearing is fixed on the slider.
According to a preferred embodiment of the application, a U-shaped block is provided on the slider. And a second locking screw is arranged on the U-shaped block. And the outer ring of the fourth bearing is locked on the U-shaped block by the second locking screw.
According to a preferred embodiment of the application, a locking element is also provided on the displacement rod.
According to a preferred embodiment of the application, the floating mechanism is detachably arranged on the axially floating inner shaft by means of a quick change mechanism.
According to a preferred embodiment of the application, the rotary drive is in driving connection with the rotary mechanism via a belt drive, a chain drive or a gear drive.
According to a preferred embodiment of the present application, the thread detection tool is a go gauge or a no-go gauge.
Compared with the prior art, the thread detection device provided by the embodiment of the application has the following beneficial effects:
the thread detection device provided by the embodiment of the application can be used for greatly improving the accuracy and reliability of thread parameter detection and ensuring the detection quality by taking the initial rotation point position of the workpiece to be detected and the thread detection tool as the initial position of the detection thread parameter, and is applicable to the detection of different types of threads (standard components and non-standard components).
Additional features of the application will be set forth in part in the description which follows. Additional features of part of the application will be readily apparent to those skilled in the art from a examination of the following description and the corresponding figures or a study of the manufacture or operation of the embodiments. The features of the present disclosure may be implemented and realized in the practice or use of the various methods, instrumentalities and combinations of the specific embodiments described below.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. Like reference symbols in the various drawings indicate like elements. Wherein,
FIGS. 1 and 2 are schematic illustrations of thread detection devices according to some embodiments of the present application;
fig. 3 to 5 are partial enlarged structural views of a thread detecting apparatus according to some embodiments of the present application.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that if the terms "first," "second," and the like are referred to in the description of the present application and the claims and the above figures, they are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the application herein. Furthermore, if the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present application, if the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like are referred to, the indicated azimuth or positional relationship is based on that shown in the drawings. These terms are only used to better describe the present application and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present application will be understood by those of ordinary skill in the art according to the specific circumstances.
Further, in the present application, the terms "mounted," "configured," "provided," "connected," "sleeved," and the like are to be construed broadly if they relate to. For example, they may be fixedly connected, detachably connected, or of unitary construction, they may be mechanically or electrically connected, they may be directly connected, or they may be indirectly connected through intermediaries, or they may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
The embodiment of the application discloses a thread detection device.
As shown in fig. 1 and 2, the screw detection device may include a support mechanism 100, a control device, a displacement detection mechanism 200, a rotation driving device 300, a rotation mechanism 400, a floating mechanism 500, and a screw detection tool 600.
Wherein the rotation mechanism 400 is rotatably provided on the support mechanism 100.
By way of example, the rotation mechanism 400 may include an axially floating inner shaft 410, a hollow outer shaft 420, a spring collar 430, a first spring 441, and a second spring 442.
As shown in fig. 3 and 4, the hollow outer shaft 420 is rotatably mounted on the support mechanism 100 by a first bearing 451 and a second bearing 452. The hollow outer shaft 420 is axially and relatively movably sleeved outside the axially floating inner shaft 410. And the axially floating inner shaft 410, the hollow outer shaft 420 and the circlip 430 are connected through a first transmission mechanism, so that the hollow outer shaft 420 can drive the axially floating inner shaft 410 to rotate.
Illustratively, the first transmission includes a plurality of first pin bores 472 axially disposed on the axially floating inner shaft 410, a bar-shaped bore 471 axially disposed on the hollow outer shaft 420, two second pin bores 473 symmetrically disposed on the circlip 430, and a connecting pin 474. The connecting pin 474 is threaded into the bar-shaped hole 471, the first pin hole 472, and the second pin hole 473 such that the hollow outer shaft 420 is capable of rotating the axially floating inner shaft 410. Further, as shown in fig. 5, a first locking screw 475 is provided at both the second pin holes 473 to prevent the connecting pin 474 from being disengaged during rotation.
Wherein the first spring 441 is disposed between the first bearing 451 and the circlip 430, and the second spring 442 is disposed between the second bearing 452 and the circlip 430. The first and second springs 441, 442 can be used to balance the axially floating inner shaft 410 such that the axially floating inner shaft 410 can eliminate its own weight or asymmetric forces at any time. For example, the axially floating inner shaft 410 may be mounted in a vertical orientation to eliminate gravity, and in a horizontal orientation to eliminate other friction, so that the mechanism is at a point of equilibrium. The purpose of the balance point is to minimize friction between the inspection tool and the inspected workpiece during the threading process. I.e. tool wear may be reduced.
Further, in order to lock the hollow outer shaft 420 to prevent axial play thereof, one end of the hollow outer shaft 420 is abutted against the inner ring end face of the first bearing 451 through the limiting boss 461, the other end of the hollow outer shaft 420 is connected to the supporting mechanism 100 through the third bearing 453, and a lock nut 462 is provided on the hollow outer shaft 420 abutted against the inner ring end face of the third bearing 453.
As shown in fig. 1 and 3, the rotation driving device 300 is mounted on the support mechanism 100, and the rotation driving device 300 is connected to a control device (not shown). The rotation driving device 300 is in transmission connection with the rotation mechanism 400. The rotary drive 300 and the rotary mechanism 400 may be connected by a belt drive, a chain drive or a gear drive, for example. In the present embodiment, the rotation driving device 300 may employ a motor. The control device can adopt a singlechip, a microcontroller, an industrial personal computer or a computer.
Wherein the displacement detecting mechanism 200 is provided on the supporting mechanism 100 and connected to the control device.
For example, as shown in fig. 1 to 5, the displacement detection mechanism 200 may include a displacement sensor 210, a slide rail 220, a slider 230, and a fourth bearing 240.
Wherein the displacement sensor 210 and the sliding rail 220 are fixed on the supporting mechanism 100. The displacement sensor 210 is connected to the control device. The slider 230 is slidably disposed on the slide rail 220, and the slider 230 is connected to the displacement lever 211 on the displacement sensor. The inner race of the fourth bearing 240 is fixed to the axially floating inner shaft 410. And the outer ring of the fourth bearing 240 is fixed to the slider 230. Illustratively, a U-shaped block is provided on the slider 230. A second locking screw 250 is provided on the U-shaped block. The outer ring of the fourth bearing 240 is locked to the U-shaped block by the second locking screw 250. In the axial floating process of the axial floating inner shaft 410, the rotation and displacement of the axial floating inner shaft 410 can be transmitted to the sliding block 230, and the displacement rod on the displacement sensor is connected with the sliding block 230, so that the real displacement data can be obtained. The slider 230 is tightly fixed to the fourth bearing 240 by the second locking screw, so that an axial displacement error due to a rotational motion can be eliminated, thereby improving the detection accuracy.
Further, a lock member 260 is provided on the displacement lever 211. In this embodiment, the locking member 260 may employ a locking nut or a locking screw.
The floating mechanism 500 is detachably disposed on the axially floating inner shaft 410. Illustratively, the floating mechanism 500 is removably disposed on the axially floating inner shaft 410 by a quick change mechanism. The floating mechanism 500 and the quick-change mechanism may be any existing floating mechanism and quick-change mechanism, for example, an existing floating mechanism for thread stop detection.
Wherein the thread detecting tool 600 is connected to the floating mechanism 500. Illustratively, the thread detection tool 600 is a go gauge or no-go gauge.
Further, the thread detection device further comprises a lifting device. The lifting device is connected with the control device. The supporting mechanism 100 is disposed on the lifting device, so that the lifting device can drive the supporting mechanism 100 to move along the axial direction.
The working distance of the thread detection device of the embodiment of the application is as follows:
After debugging, under the control of the control device, the lifting device drives the supporting mechanism 100 to move downwards to enable the thread detection tool to be in contact with a workpiece to be detected, so that the head tooth of the thread detection tool is in contact with the chamfer surface of the workpiece to be detected, then the displacement detection mechanism starts to collect displacement data of the axially floating inner shaft (namely, the displacement data of the thread detection tool), then the rotation driving device drives the axially floating inner shaft and the thread detection tool to rotate for at least one circle, and the maximum value or the minimum value can be found through the comparison calculation of the control device, wherein the position of the maximum value or the minimum value is the tooth inlet position (namely, the initial rotation point position of the workpiece to be detected and the thread detection tool).
Specifically, the working process of the thread detection device of the embodiment of the application is as follows:
s10, acquiring initial rotation point positions of the workpiece to be detected and the thread detection tool, and taking the initial rotation point positions as initial positions for detecting thread parameters. The initial screwing point position of the workpiece to be detected and the thread detection tool is the critical point position of screwing (buckling) and separating between the workpiece to be detected and the thread detection tool. At the critical point position, if the screw detection tool rotates forward, the screw of the workpiece to be detected and the screw of the screw detection tool are further screwed (buckled), and if the screw detection tool rotates reversely, the screw of the screw detection tool is separated from the screw of the workpiece to be detected.
Illustratively, in this embodiment, the method for obtaining the initial rotation point position of the workpiece to be inspected and the thread inspection tool includes the steps of:
And S110, controlling the lifting device to downwards move the supporting mechanism by the control device, and driving the axially floating inner shaft and the thread detection tool on the axially floating inner shaft to downwards move by the supporting mechanism so that the thread head tooth of the thread detection tool is contacted with the chamfer surface of the workpiece to be detected.
And S120, the control device controls the rotation driving device to drive the axially floating inner shaft in the rotation mechanism and the thread detection tool on the axially floating inner shaft to rotate, so that the thread detection tool rotates for N circles along the reverse direction of the thread rotation direction of the workpiece to be detected. Wherein 1< N <2.
S130, in the process of reversely rotating the thread detection tool, the displacement detection mechanism acquires position data of the thread detection tool in real time. By way of example, a circle of the workpiece to be inspected may be subdivided into 360 parts, with position data for one thread inspection tool being collected for each part during the reverse rotation of the thread inspection tool.
And S140, the control device acquires the maximum value or the minimum value in the position data of the screw detection tool acquired in the step S130. For example, the control device may use a comparison method to obtain the maximum or minimum value in the collected position data of the thread detection tool.
The position indicated by the maximum value or the minimum value is the initial rotation point position of the workpiece to be detected and the thread detection tool.
And S30, under the control of the control device, detecting the workpiece to be detected, and obtaining the thread parameters of the workpiece to be detected.
Further, the thread detection method further comprises the following steps:
And S40, the control device compares the thread parameters of the workpiece to be detected obtained in the step S30 with standard parameters, and judges whether the thread parameters of the workpiece to be detected meet the standard. For example, if the screw thread parameter of the workpiece to be detected is within the error range compared with the standard parameter, the workpiece to be detected meets the standard and is a qualified workpiece.
Further, after step S10, before step S30, the method further includes the following steps:
and S20, judging the threading, and judging whether the first thread of the thread detection tool can pass through the threading of the first thread of the workpiece to be detected. I.e. whether the thread first tooth of the thread detection tool can be screwed with the thread first tooth of the workpiece to be detected (whether the thread first tooth of the thread detection tool can successfully enter the thread first tooth of the workpiece to be detected).
If the first thread of the thread detection tool can pass through the first thread of the workpiece to be detected, that is, the first thread of the thread detection tool can successfully enter the first thread of the workpiece to be detected, step S30 is performed.
If the first thread of the thread detection tool cannot pass through the first thread of the workpiece to be detected, that is, the first thread of the thread detection tool cannot successfully enter the first thread of the workpiece to be detected, the step S20 may be repeated one to three times. Or the detection of the workpiece to be detected can be directly abandoned, and the next workpiece to be detected can be detected.
In some embodiments, the thread detection tool may employ a thread detection gauge.
When the go gauge is adopted as the thread detection head, the method for judging whether the first tooth of the thread detection tool can pass through the first tooth screwing of the workpiece to be detected can comprise the following steps:
and S210, rotating the thread detection tool under the drive of the rotation driving device, and acquiring the displacement of the thread detection tool after rotation by the displacement detection mechanism.
S220, the control device judges whether the displacement reaches a preset value.
If so, the first thread of the thread detection tool can be screwed with the first thread of the workpiece to be detected, namely, the first thread (first thread) of the thread detection tool can successfully enter the first thread (first thread) of the workpiece to be detected.
The method for obtaining the displacement of the screw detection tool after rotation can comprise the following steps:
S211, acquiring the initial rotation point position of the workpiece to be detected and the thread detection tool through a displacement detection mechanism.
S212, rotating the thread detection tool, and acquiring the end position of the rotated thread detection tool through the displacement detection mechanism.
The control means calculates the displacement amount based on the initial rotation point and the end position S213.
Or the method for judging whether the first tooth of the thread detection tool can pass through the first tooth screwing of the workpiece to be detected or not can comprise the following steps:
S230, setting the movement distance of the tooth entering judgment of the thread detection tool by the control device.
S240, rotating the screw detection tool, and acquiring the actual moving distance of the screw detection tool after rotation through the displacement detection mechanism.
And S250, the control device compares the actual moving distance with the set moving distance, if the actual moving distance is larger than or equal to the set moving distance, the first tooth of the thread detection tool can pass through the first tooth of the workpiece to be detected in a screwing way, and the first tooth (first tooth) of the thread detection tool can enter the first tooth (first tooth) of the thread of the workpiece to be detected.
In some embodiments, the thread detection tool may employ a thread detection stop gauge.
When the no-go gauge is adopted as the thread detection head, the step S10 is followed by the step S30, which is further followed by the step of judging whether the thread detection tool can be effectively screwed with the workpiece to be detected.
If the thread detecting tool can be effectively screwed with the workpiece to be detected, the step S30 is performed.
The method for judging whether the thread detection tool can be effectively screwed with the workpiece to be detected or not can comprise the following steps:
And S260, rotating the thread detection tool, and acquiring the angle and the position of a first stopping point of the thread detection tool through a displacement detection mechanism.
And S270, after the screw thread detection tool is rotated reversely, the screw thread detection tool is rotated forwards again, and the angle and the position of a second stopping point of the screw thread detection tool are obtained through the displacement detection mechanism.
And S280, the control device compares the angle and the position of the first stopping point with the angle and the position of the second stopping point, and if the angle and the position of the first stopping point are within the error range, the thread detection tool can be effectively screwed with the workpiece to be detected to stop.
If the angle of the first stopping point and the angle of the second stopping point are within the error range, the position of the first stopping point and the position of the second stopping point are continuously compared, and if the angle of the first stopping point and the angle of the second stopping point are within the error range, the screw thread detection tool can be screwed with a workpiece to be detected.
The thread detecting method of the present application is compared with the conventional thread detecting method using an m20×1.5 bolt as an example, and the results are shown in the following table:
As can be seen from the comparison, the thread detection device provided by the embodiment of the application can greatly improve the accuracy and reliability of thread parameter detection and ensure the detection quality by taking the initial rotation point position of the workpiece to be detected and the thread detection tool as the initial position for detecting the thread parameter, and is applicable to detection of different types of threads (standard components and non-standard components).
It should be noted that all of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except mutually exclusive features and/or steps.
In addition, the foregoing detailed description is exemplary, and those skilled in the art, having the benefit of this disclosure, may devise various arrangements that, although not explicitly described herein, are within the scope of the present disclosure. It should be understood by those skilled in the art that the present description and drawings are illustrative and not limiting to the claims. The scope of the invention is defined by the claims and their equivalents.
Claims (9)
1. A thread detection device, characterized in that the thread detection device comprises a supporting mechanism (100), a control device, a displacement detection mechanism (200), a rotation driving device (300), a rotation mechanism (400), a floating mechanism (500) and a thread detection tool (600);
the rotating mechanism (400) is rotatably arranged on the supporting mechanism (100), the rotating driving device (300) is in transmission connection with the rotating mechanism (400), and the rotating driving device (300) is connected with the control device;
and, the rotating mechanism (400) includes an axially floating inner shaft (410);
The floating mechanism (500) is detachably arranged on the axial floating inner shaft (410);
the thread detection tool (600) is connected to the floating mechanism (500);
The displacement detection mechanism (200) is arranged on the supporting mechanism (100) and is connected with the control device;
The rotation mechanism (400) comprises the axially floating inner shaft (410), a hollow outer shaft (420), a spring collar (430), a first spring (441) and a second spring (442);
The hollow outer shaft (420) is rotatably mounted on the support mechanism (100) by a first bearing (451) and a second bearing (452);
the hollow outer shaft (420) is sleeved outside the axially floating inner shaft (410) in a mode of being capable of relatively moving along the axial direction, and the axially floating inner shaft (410), the hollow outer shaft (420) and the spring retainer ring (430) are connected through a first transmission mechanism, so that the hollow outer shaft (420) can drive the axially floating inner shaft (410) to rotate;
the first spring (441) is arranged between the first bearing (451) and the spring collar (430), and the second spring (442) is arranged between the second bearing (452) and the spring collar (430).
2. The thread detection device of claim 1, wherein the thread detection device further comprises a lifting device;
The lifting device is connected with the control device, and the supporting mechanism (100) is arranged on the lifting device.
3. The thread detection device according to claim 1, wherein one end of the hollow outer shaft (420) abuts against an inner ring end face of the first bearing (451) through a limit boss (461);
The other end of the hollow outer shaft (420) is connected to the supporting mechanism (100) through a third bearing (453), and a lock nut (462) which abuts against the inner ring end surface of the third bearing (453) is provided on the hollow outer shaft (420).
4. The thread detection device according to claim 1, wherein the first transmission mechanism comprises a plurality of first pin holes (472) axially provided on the axially floating inner shaft (410), a strip-shaped hole (471) axially provided on the hollow outer shaft (420), two second pin holes (473) symmetrically provided on the spring collar (430), and a connecting pin (474);
The connecting pin (474) is connected in the strip-shaped hole (471), the first pin hole (472) and the second pin hole (473) in a penetrating way, so that the hollow outer shaft (420) can drive the axial floating inner shaft (410) to rotate;
further, a first locking screw (475) is provided to each of the two second pin holes (473).
5. The thread detection device according to claim 1, wherein the displacement detection mechanism (200) comprises a displacement sensor (210), a slide rail (220), a slider (230) and a fourth bearing (240);
The displacement sensor (210) and the sliding rail (220) are fixed on the supporting mechanism (100);
the sliding block (230) is slidably arranged on the sliding rail (220), and the sliding block (230) is connected with a displacement rod (211) on the displacement sensor;
The inner ring of the fourth bearing (240) is fixed on the axially floating inner shaft (410), and the outer ring of the fourth bearing (240) is fixed on the slider (230).
6. The thread detection device according to claim 5, characterized in that a U-shaped block is provided on the slider (230), a second locking screw (250) is provided on the U-shaped block;
the outer ring of the fourth bearing (240) is locked on the U-shaped block by the second locking screw (250).
7. The thread detection device according to claim 5, wherein a locking member (260) is further provided on the displacement lever (211).
8. The thread detection device according to claim 1, characterized in that the floating mechanism (500) is detachably arranged on the axially floating inner shaft (410) by means of a quick change mechanism.
9. The thread detection device according to claim 1, characterized in that the rotation drive (300) is in driving connection with the rotation mechanism (400) by means of a belt transmission, a chain transmission or a gear transmission.
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| CN202110784249.6A CN113503790B (en) | 2021-07-12 | 2021-07-12 | Thread detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110784249.6A CN113503790B (en) | 2021-07-12 | 2021-07-12 | Thread detection device |
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| CN113503790B true CN113503790B (en) | 2025-02-07 |
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| CN114441160A (en) * | 2022-03-09 | 2022-05-06 | 湖南新视电子技术有限公司 | Thread detection device and detection method thereof |
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| CN105675279B (en) * | 2016-01-15 | 2017-12-19 | 中国航空动力机械研究所 | Test fixture for the adjustment of Compressor test part axiality |
| CN205506380U (en) * | 2016-03-30 | 2016-08-24 | 吉林正多科技有限公司 | Car passenger car cable tray detects frock |
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| CN111637810A (en) * | 2020-04-30 | 2020-09-08 | 四川航天川南火工技术有限公司 | A quick-change device for thread open and close detection equipment |
| CN215338057U (en) * | 2021-07-12 | 2021-12-28 | 成都小钥匙科技有限公司 | A thread detection device |
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