Thread detection device and thread detection system

By designing an automated thread inspection device, combined with a workpiece positioning and clamping mechanism, and utilizing a drive mechanism and sensors to achieve automatic thread inspection, the problems of low efficiency and poor accuracy in existing technologies have been solved, and efficient and accurate thread inspection has been achieved.

CN224302934UActive Publication Date: 2026-05-29HUIXIN QUANZHI IND INTERNET TECH (QINGDAO) CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUIXIN QUANZHI IND INTERNET TECH (QINGDAO) CO LTD
Filing Date
2025-07-24
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing thread inspection methods are inefficient and inaccurate, mainly relying on manual operation and simple tools, and cannot achieve efficient automation and accurate inspection.

Method used

A thread detection device was designed, including a workpiece positioning mechanism, a clamping mechanism, and a thread detection mechanism. Through the cooperation of an automated drive mechanism and sensors, the device can automatically detect and accurately determine the thread.

Benefits of technology

It has automated the thread inspection process, improving inspection efficiency and accuracy, and enabling quick and accurate determination of thread quality.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224302934U_ABST
    Figure CN224302934U_ABST
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Abstract

The utility model discloses a kind of thread detection device and thread detection system, comprising: workpiece positioning mechanism, comprising: positioning base body;Positioning assembly, support assembly;Compression base body and rotating compression device, with output part;Swing arm, with output part connection;First detection base body;First drive mechanism, slidably set on first detection base body;First thread detection gauge, with first drive mechanism connection;Second drive mechanism, with first telescopic part;First connecting piece, with first telescopic part fixed connection;Second connecting piece, one end is connected with first drive mechanism, one end and first connecting piece slidingly connected;First elastic component, sleeve on first connecting piece, one end abuts on first gasket and second connecting piece;First displacement sensor; Display, with first displacement sensor, first drive mechanism electric connection.The utility model presents thread detection device, can realize to screw thread automatic detection and detection precision is high.
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Description

Technical Field

[0001] This utility model belongs to the technical field of thread testing equipment, specifically, it relates to an improvement of a thread testing device and a thread testing system. Background Technology

[0002] Visual inspection is the most intuitive method for inspecting threads. By observing the appearance of the threads with the naked eye or a magnifying glass, one can make a preliminary judgment on whether the threads have burrs, damage, or irregular shapes. This method is simple and easy to implement, but its accuracy is relatively low, and it is usually used for initial screening.

[0003] The most common method is to use thread gauges for inspection. A thread gauge is a tool specifically designed for inspecting threads; it can be a go gauge or a no-go gauge. A go gauge is used to check the minimum thread size, while a no-go gauge is used to check the maximum thread size. By using the thread gauges, it can be determined whether the thread conforms to the specified dimensional standards. Currently, thread gauge inspection is mainly done manually. This method requires manual operation. For example, when inspecting external threads, the go gauge is manually screwed onto the external thread of the workpiece to see if it passes through completely. Simultaneously, the operator judges whether there is any difficulty in screwing it in. This method is not only inefficient and time-consuming, but also has low accuracy due to manual judgment.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0005] This invention addresses the aforementioned technical problems in existing thread detection technologies by proposing a thread detection device that enables automatic thread detection with high accuracy.

[0006] To achieve the above-mentioned utility model / design objectives, the present utility model adopts the following technical solution:

[0007] A thread inspection device, comprising:

[0008] Workpiece positioning mechanism, including:

[0009] Positioning the substrate;

[0010] And positioning components set on the positioning base for supporting and positioning the workpiece;

[0011] Support components are used to support the workpiece;

[0012] The workpiece clamping mechanism includes a clamping base;

[0013] And it is installed in the rotary clamping device, which has an output section;

[0014] A swing arm, connected to the output unit, is capable of rotating and moving up and down under the drive of the output unit, and a clamping component is provided at the end of the swing arm;

[0015] The first thread detection device includes: a first detection base;

[0016] The first driving mechanism is slidably mounted on the first detection substrate;

[0017] The first thread inspection gauge is connected to the first drive mechanism and can rotate under the drive of the first drive mechanism;

[0018] The second drive mechanism has a retractable first telescopic part;

[0019] The first connector is fixedly connected to the first telescopic part, and a first abutting part is formed at its end;

[0020] The second connector has one end connected to the first drive mechanism and the other end slidably connected to the first connector.

[0021] The first gasket is assembled onto the first telescopic part;

[0022] The first elastic component is sleeved on the first connector, with one end abutting against the first gasket and the other end abutting against the second connector;

[0023] The first displacement sensor is used to display the movement distance of the first thread inspection gauge;

[0024] The display is electrically connected to the first displacement sensor and the first drive mechanism, and is used to display the displacement of the first displacement sensor and the torque of the first drive mechanism.

[0025] Compared with the prior art, the advantages and positive effects of this utility model are:

[0026] The thread detection device of this utility model achieves the positioning and fixing of the workpiece by setting up a workpiece positioning mechanism and a workpiece clamping mechanism. The second driving mechanism on the first thread detection mechanism drives the first driving mechanism and the first thread detection gauge above it to automatically move to the workpiece. The first driving mechanism rotates and the first elastic component cooperates to automatically screw it onto the thread of the workpiece, realizing the automatic operation of thread detection of the workpiece. Compared with the existing manual operation method, it realizes automated detection, which is more efficient and convenient.

[0027] Furthermore, by displaying the torque of the first displacement sensor and the first drive mechanism on the display screen, the thread qualification of the workpiece can be accurately determined, which improves the measurement accuracy compared with the existing manual sensing measurement method.

[0028] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a three-dimensional structural diagram of one embodiment of the thread detection system proposed in this utility model;

[0031] Figure 2 This is a schematic diagram of the first thread detection mechanism and the second thread detection mechanism of the thread detection device proposed in this utility model.

[0032] Figure 3 yes Figure 2 A magnified view of part A;

[0033] Figure 4 yes Figure 2 A magnified view of section B;

[0034] Figure 5 This is a three-dimensional structural diagram of the first thread detection mechanism of the thread detection device proposed in this utility model;

[0035] Figure 6 This is a schematic diagram of the workpiece positioning mechanism of the thread detection device proposed in this utility model;

[0036] Figure 7 This is a schematic diagram of the workpiece clamping mechanism of the thread detection device proposed in this utility model.

[0037] In the figure, 100 is the workpiece positioning mechanism; 110 is the positioning base; 120 is the positioning component; 121 is the first positioning pin; 122 is the second positioning pin; 130 is the support component; 131 is the support pin; 200 is the workpiece clamping mechanism; 210 is the clamping base; 220 is the rotary clamping device; 221 is the output part; 230 is the swing arm; 240 is the clamping component; 250 is the connecting shaft; 260 is the clamping nut; 300 is the first thread detection mechanism; 310 is the first detection base; 320 is the first drive mechanism; 321 is the first thread detection gauge; 330 is the second drive mechanism; 331 is the first telescopic part; 332 is the first connecting piece; 3321 is the first abutting part; 333 is the second connecting part. Components: 334, First gasket; 335, First elastic component; 336, Positioning nut; 340, First displacement sensor; 400, Second thread detection mechanism; 410, Second detection base; 420, Third drive mechanism; 430, Second thread detection gauge; 440, Fourth drive mechanism; 441, Second telescopic part; 442, Third connector; 443, Fourth connector; 444, Second gasket; 446, Second displacement sensor; 510, First base plate; 520, Second base plate; 530, Support column; 540, Photoelectric beam sensor; 610, First linear guide; 620, First slider; 630, First mounting plate; 640, Connecting plate; 800, Coupling. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. In the description of the embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0041] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0042] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0043] In some embodiments of this application, a thread detection device is proposed, which can automatically detect whether the thread is qualified. It consists of at least a workpiece positioning mechanism 100, a workpiece clamping mechanism 200, and a first thread detection mechanism 300.

[0044] The workpiece positioning mechanism 100 can support and position the workpiece to be inspected, ensuring that the workpiece will not move during the inspection process and guaranteeing the accuracy of the inspection.

[0045] The workpiece positioning mechanism 100 includes: a positioning base 110 and a positioning component 120 disposed on the positioning base 110 for supporting and positioning the workpiece and a support component 130 for supporting the workpiece.

[0046] The positioning base 110 includes a positioning base plate and a positioning column fixedly connected to the positioning base plate, which can be locked together by screws.

[0047] The positioning component 120 includes a first positioning pin 121 and a second positioning pin 122, which are respectively inserted into positioning holes arranged diagonally on the workpiece.

[0048] In some embodiments of this application, a protrusion is formed on the top of the first positioning pin 121, and a plurality of positioning claws are formed on the protrusion and arranged circumferentially thereon. When positioning the workpiece, the workpiece is supported by the top surface of the first positioning pin 121, and the positioning claws are engaged in the positioning hole to position the workpiece.

[0049] The structure of the second locating pin 122 is the same as that of the first locating pin 121, and will not be described in detail here.

[0050] The support assembly 130 includes: multiple support pins 131, which are provided to support the bottom surface of the workpiece.

[0051] The support pin 131 can provide stable support to the workpiece by abutting against the bottom surface of the workpiece.

[0052] The workpiece clamping mechanism 200 includes a clamping base 210;

[0053] And it is provided in the rotary clamping device 220, which has an output section 221;

[0054] The swing arm 230 is connected to the output part 221 and can rotate and move up and down under the drive of the output part 221. A clamping member 240 is provided at the end of the swing arm 230.

[0055] The clamping base 210 is a clamping column used to support and fix the rotary clamping device 220. The rotary clamping device 220 adopts a selected rotary clamping cylinder, and its output part 221 is connected to the swing arm 230, which can drive the swing arm 230 to swing 90 degrees and move up and down.

[0056] The swing arm 230 can be used to change the clamping position to fit the workpiece. By rotating the clamping cylinder to drive the swing arm 230 to move up and down, the workpiece can be clamped and fixed from above, ensuring that the workpiece will not move during the thread inspection process.

[0057] The first thread detection mechanism 300 includes: a first detection base 310;

[0058] The first drive mechanism 320 is slidably mounted on the first detection base 310;

[0059] The first thread inspection gauge 321 is connected to the first drive mechanism 320 and can rotate under the drive of the first drive mechanism 320.

[0060] The first detection substrate 310 is the first detection base plate, used to assemble and support the first drive mechanism 320.

[0061] The first drive mechanism 320 is a first drive motor, which has a motor output shaft. The motor output shaft is connected to the first thread inspection gauge 321 through a coupling 800. Specifically, the motor output shaft is inserted into one end of the coupling 800, and the first thread inspection gauge 321 is inserted into the other end of the coupling 800.

[0062] The first thread inspection gauge 321 can be either a go gauge or a stop gauge.

[0063] The second drive mechanism 330 has a retractable first telescopic part 331;

[0064] The first connector 332 is fixedly connected to the first telescopic part 331, and a first abutting part 3321 is formed at its end;

[0065] The second connector 333 has one end connected to the first drive mechanism 320 and the other end slidably connected to the first connector 332;

[0066] The first gasket 334 is assembled onto the first telescopic part 331;

[0067] The first elastic component 335 is sleeved on the first connector 332, with one end abutting against the first gasket 334 and the other end abutting against the second connector 333.

[0068] The second drive mechanism 330 is the second drive cylinder, and the first telescopic part 331 is the first telescopic rod.

[0069] The first connector 332 is a first connecting sleeve, and the first abutting part 3321 at its end is a first abutting protrusion formed on the first connecting sleeve.

[0070] The second connector 333 is a second connecting plate 640, which is bent and has a through hole on its top. The end of the first connecting sleeve without the first abutment protrusion passes through the first through hole.

[0071] The first telescopic part 331 is provided with an external thread, and the first connector 332 is provided with an internal thread, which is screwed to the end position of the first telescopic part 331.

[0072] The first gasket 334 is fitted onto the first telescopic part 331. A positioning nut 336 is also provided on the first telescopic part 331. When the first connector 332 is screwed onto the first telescopic part 331, its end cooperates with the positioning nut 336 to press and fix the first gasket 334.

[0073] The first elastic component 335 is a first spring, which is sleeved on the first connecting sleeve, and its two ends abut against the first gasket 334 and the second connecting member 333 respectively.

[0074] The first displacement sensor 340 is used to display the movement distance of the first thread detection gauge 321;

[0075] The display is electrically connected to the first displacement sensor 340 and the first drive mechanism 320, and is used to display the displacement of the first displacement sensor 340 and the torque of the first drive mechanism 320.

[0076] The first displacement sensor 340 and the first drive mechanism 320 are electrically connected to the display, and the displacement value detected by them and the torque generated when the first drive mechanism 320 rotates can be directly displayed on the display.

[0077] When inspecting the thread conformity of a workpiece, the workpiece can be placed on the workpiece positioning mechanism 100. The first positioning pin 121 and the second positioning pin 122 on the workpiece positioning mechanism 100 are inserted into the positioning hole of the workpiece to support and position it. At the same time, the bottom of the workpiece is supported by the support pin 131 arranged at the bottom surface of the workpiece.

[0078] Then, the rotating clamping device 220 in the workpiece clamping mechanism 200 is activated, which drives the swing arm 230 to move to the position above the workpiece. The clamping component 240 connected to the swing arm 230 clamps the workpiece at the position above the workpiece. The workpiece is firmly positioned by the cooperation of the workpiece clamping mechanism 200 and the workpiece positioning mechanism 100.

[0079] After the workpiece is positioned, the second drive mechanism 330 can be activated to extend the first telescopic part 331, thereby causing the first connecting member 332 to move relative to the second connecting member 333. The first connecting member 332 extends a certain distance relative to the second connecting member 333, so that there is a gap between the first abutting part 3321 at its end and the second connecting member 333.

[0080] When the first connector 332 extends relative to the second connector 333, it compresses the first elastic member 335 located between the second connector 333 and the first gasket 334. The elastic member exerts a force on the second connector 333, thereby pushing the first drive mechanism 320 and the first thread gauge 321 connected to the second connector 333 to move towards the workpiece. When it moves to the workpiece position, the first thread gauge 321 will contact the workpiece. At this time, the compression of the first elastic member 335 increases, and then the first drive mechanism 320 can start to rotate, continuously moving forward and screwing into the threaded part of the workpiece for inspection.

[0081] Since there is a gap between the first abutment 3321 and the second connector 333, when the first drive mechanism 320 moves, the second drive mechanism 330 does not move and the first abutment 3321 above it does not limit the movement of the second connector 333. The elastic force of the first elastic member 335 can provide the preload force for the first thread gauge 321 to be screwed into the thread of the workpiece.

[0082] As the first thread gauge 321 is continuously screwed into the threaded part of the workpiece, the first elastic member 335 is continuously released. When the first thread gauge 321 passes through the threaded part of the workpiece, the first thread gauge 321 can be driven to disengage from the threaded part of the workpiece by reversing the rotation of the first driving mechanism 320. After disengaging from the threaded part of the workpiece, the second driving mechanism 330 contracts to drive the first resisting portion 3321 on the first connecting member 332 to act on the second connecting member 333, thereby driving the entire first driving mechanism 320 and the first thread gauge 321 to reset.

[0083] When the first driving mechanism 320 moves, its moving displacement can be detected by the first displacement sensor 340 and displayed on the display. At the same time, the torque of the rotation of the first driving mechanism 320 can also be displayed on the display in real time.

[0084] If the first thread gauge 321 is a go gauge, it can be used to detect the external thread socket. When using the go gauge to try to screw in or rotate into the thread to be detected. If the go gauge can pass smoothly and there is no obvious obstruction during the screwing process, it means it is qualified. If the go gauge cannot be screwed in or there is an obvious obstruction during the screwing process, then this may mean that the size of the thread is too large and it is unqualified.

[0085] The moving distance detected by the first displacement sensor 340 can be used to determine whether the first thread gauge 321 passes smoothly.

[0086] The torque of the first driving mechanism 320 can be used to determine whether there is an obstruction during the screwing process. When there is an obstruction, its corresponding torque will be larger. For example, under normal circumstances, if the thread is qualified, its torque can be within the qualified range of 2. When the torque exceeds 2, it means that its passing is not smooth and it is unqualified.

[0087] If the first thread gauge 321 is a no-go gauge, it can be used to detect the internal thread. Then during the test, it should only be able to be screwed in one to two or three turns, that is, the screwing distance should be less than the set distance. If the thread cannot be screwed in or the screwing distance is too much, it is also unqualified.

[0088] The screwing distance can be obtained from the value displayed on the display by the first displacement sensor 340.

[0089] Since the moving distance of the first displacement sensor 340 in this embodiment includes the sum of two parts: the first distance when the second driving mechanism 330 drives the first thread gauge 321 and the first driving mechanism 320 to move to between the workpiece and the second distance when the first thread gauge 321 is screwed into the threaded part of the workpiece.

[0090] Therefore, during inspection, the operator needs to read the first value when the gauge moves to the workpiece and the second value after moving to the workpiece and passing through the threaded part of the workpiece through the display. Then, by calculating the difference between the two values, the operator can determine the moving distance of the first thread gauge on the workpiece and thus determine the thread qualification of the workpiece.

[0091] The thread detection device in this embodiment achieves the positioning and fixing of the workpiece by setting the workpiece positioning mechanism 100 and the workpiece clamping mechanism 200 in cooperation. The first drive mechanism 320 and the first thread detection gauge 321 above it are automatically moved to the workpiece by the second drive mechanism 330 on the first thread detection mechanism. The first drive mechanism 320 rotates and the first elastic component 335 cooperates to automatically screw it onto the thread of the workpiece, realizing the automatic operation of thread detection of the workpiece. Compared with the existing manual operation method, it achieves automation, and the detection efficiency is better and the detection is more convenient and faster.

[0092] Furthermore, by displaying the torque of the first displacement sensor 340 and the first drive mechanism 320 on the display screen, the thread qualification of the workpiece can be accurately determined, which improves the measurement accuracy compared with the existing manual sensing measurement method.

[0093] In some embodiments of this application, two first thread detection mechanisms 300 are provided, arranged on both sides of the workpiece. By arranging the first thread detection mechanisms 300 on both sides of the workpiece, for workpieces with two threaded portions that need to be detected, direct detection can be achieved in one go, improving detection efficiency.

[0094] In some embodiments of this application, a second thread detection mechanism 400 is included, which includes a second detection base 410;

[0095] The third drive mechanism 420 is slidably disposed on the second detection base 410;

[0096] The second thread inspection gauge 430 is connected to the third drive mechanism 420 and can rotate under the drive of the third drive mechanism 420;

[0097] The fourth drive mechanism 440 has a retractable second telescopic part 441;

[0098] The third connector 442 is fixedly connected to the second telescopic part 441, and a second abutment is formed at its end;

[0099] The fourth connector 443 is connected at one end to the third drive mechanism 420 and at the other end to the third connector 442 in a sliding connection.

[0100] The second gasket 444 is assembled onto the second telescopic part 441;

[0101] The second elastic component is sleeved on the third connector 442, with one end abutting against the second gasket 444 and the other end abutting against the fourth connector 443.

[0102] The second displacement sensor 446 detects the displacement of the second thread gauge 430;

[0103] The third drive mechanism 420 and the second displacement sensor 446 are electrically connected to the display and can be used to display the displacement of the second displacement sensor 446 and the torque of the third drive mechanism 420.

[0104] The second thread detection mechanism has the same structure and operating principle as the first thread detection mechanism, and will not be described in detail here. During inspection, for workpieces with multiple threads, the first and second thread detection mechanisms can be used simultaneously to complete the inspection in one go.

[0105] In some embodiments of this application, the first thread inspection gauge 321 is a go gauge, and the second thread inspection gauge 430 is a stop gauge. During inspection, the first thread inspection mechanism and the second thread inspection mechanism can cooperate to simultaneously inspect the internal and external threads on the workpiece, greatly improving inspection efficiency.

[0106] In some embodiments of this application, multiple workpiece clamping mechanisms 200 are provided, and multiple clamping components 240 of the multiple workpiece clamping mechanisms 200 are respectively clamped at positions corresponding to the multiple support pins 131.

[0107] By clamping the workpiece with the corresponding clamping component 240 and the support pin 131, a firm clamping and fixing of the workpiece can be ensured.

[0108] In some embodiments of this application, the clamping member 240 is connected to the swing arm 230 via a connecting assembly, the connecting assembly comprising:

[0109] The connecting shaft 250 is screwed into the swing arm 230. The connecting shaft 250 is provided with an external thread, and the end of the swing arm 230 is provided with an internal thread hole. The connecting shaft 250 is screwed into the internal thread hole of the swing arm 230.

[0110] Tighten the nut 260, screw it onto the connecting shaft 250, and press it against the bottom surface of the swing arm 230.

[0111] The clamping nut 260 is used to prevent the connecting shaft 250 from loosening.

[0112] The clamping component 240 is a flexible component, which is fixed to the connecting shaft 250 by screws.

[0113] The clamping component 240 can be made of POM, which is flexible and ensures that it will not damage the workpiece when it comes into contact with it.

[0114] In some embodiments of this application, the thread detection device further includes: a first base plate 510, on which the workpiece positioning mechanism 100 and the first thread detection mechanism 300 are disposed, and on the first detection base 310, the workpiece clamping mechanism 200 is disposed.

[0115] The second substrate 520 is disposed below the first substrate 510 and connected to the first substrate 510 via a support post 530. The second thread detection mechanism 400 is disposed on the second substrate 520.

[0116] A photoelectric through-beam sensor 540 for detecting the presence or absence of a workpiece is provided on the positioning base 110.

[0117] The photoelectric through-beam sensor 540 includes a photoelectric transmitter and a photoelectric receiver, which are respectively arranged on both sides of the positioning base 110, and can detect the presence or absence of a workpiece.

[0118] In some embodiments of this application, a first linear guide rail 610 is provided on the first detection substrate 310, a first slider 620 is slidably provided on the first linear guide rail 610, the first driving mechanism 320 is assembled onto a first mounting plate 630, the first mounting plate 630 is connected to a connecting plate 640, and the connecting plate 640 is connected to the first slider 620.

[0119] The connecting plate 640 is connected to the second connecting piece 333, and the connecting plate 640 is connected to the first mounting plate 630. The first driving mechanism 320 is mounted on the first mounting plate 630, so that the first driving mechanism 320 can slide relative to the first linear guide rail 610 through the first slider 620.

[0120] In some embodiments of this application, the first displacement sensor 340 adopts a prior art rod-type first displacement sensor 340, which includes a movable rod, and the movable rod is connected to the connecting plate 640 through a movable plate.

[0121] In some embodiments of this application, a thread inspection system is also proposed, comprising two sets of thread inspection devices, wherein the first thread inspection gauge 321 and the second thread inspection gauge 430 of the two sets of thread inspection devices have different specifications.

[0122] The first thread inspection gauge 321 and the second thread inspection gauge 430 in the two sets of thread inspection devices are set with different specifications, so that they can be used to inspect the threads of workpieces of different sizes, so that they can be adapted to more workpieces and improve versatility.

[0123] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by this utility model.

Claims

1. A thread detection device, characterized in that, Including: Workpiece positioning mechanism, including: Positioning the substrate; And positioning components set on the positioning base for supporting and positioning the workpiece; Support components are used to support the workpiece; The workpiece clamping mechanism includes a clamping base; And a rotary clamping device provided on the clamping base, having an output section; A swing arm, connected to the output unit, is capable of rotating and moving up and down under the drive of the output unit, and a clamping component is provided at the end of the swing arm; The first thread inspection mechanism includes: a first inspection base; The first driving mechanism is slidably mounted on the first detection substrate; The first thread inspection gauge is connected to the first drive mechanism and can rotate under the drive of the first drive mechanism; The second drive mechanism has a retractable first telescopic part; The first connector is fixedly connected to the first telescopic part, and a first abutting part is formed at its end; The second connector has one end connected to the first drive mechanism and the other end slidably connected to the first connector. The first gasket is assembled onto the first telescopic part; The first elastic component is sleeved on the first connector, with one end abutting against the first gasket and the other end abutting against the second connector; The first displacement sensor is used to display the movement distance of the first thread inspection gauge; The display is electrically connected to the first displacement sensor and the first drive mechanism, and is used to display the displacement of the first displacement sensor and the torque of the first drive mechanism.

2. The thread detection device according to claim 1, characterized in that, Two of the first thread detection mechanisms are provided and are arranged on both sides of the workpiece.

3. The thread detection device according to claim 1, characterized in that, It includes: a second thread detection mechanism, which includes: a second detection base; The third drive mechanism is slidably mounted on the second detection substrate; The second thread inspection gauge is connected to the third drive mechanism and can rotate under the drive of the third drive mechanism; The fourth drive mechanism has a retractable second telescopic section; The third connector is fixedly connected to the second telescopic part, and a second abutment is formed at its end; The fourth connector has one end connected to the third drive mechanism and the other end slidably connected to the third connector; The second gasket is assembled onto the second telescopic part; The second elastic component is sleeved on the third connector, with one end abutting against the second gasket and the other end abutting against the fourth connector; The second displacement sensor is used to detect the displacement of the second thread gauge. The display is electrically connected to the second displacement sensor and the third drive mechanism.

4. The thread detection device according to claim 3, characterized in that, The first thread inspection gauge is a go gauge, and the second thread inspection gauge is a stop gauge.

5. The thread detection device according to claim 1, characterized in that, The support assembly includes multiple support pins, which are positioned at the bottom surface of the workpiece. The workpiece clamping mechanism is provided in multiple ways, and the multiple clamping components of the multiple workpiece clamping mechanisms are respectively clamped at the positions corresponding to the multiple support pins.

6. The thread detection device according to claim 1, characterized in that, The clamping component is connected to the swing arm via a connecting assembly, the connecting assembly comprising: The connecting shaft is screwed into the swing arm; Tighten the nut and screw it onto the connecting shaft, pressing it firmly against the bottom surface of the swing arm; The clamping component is a flexible part, which is fixed to the connecting shaft by screws.

7. The thread detection device according to claim 3, characterized in that, It includes: a first substrate, on which the workpiece positioning mechanism and the first thread detection mechanism are disposed, and on the first detection base, the workpiece clamping mechanism is disposed; The second substrate is disposed below the first substrate and connected to the first substrate via a support column. The second thread detection mechanism is disposed on the second substrate.

8. The thread detection device according to claim 1, characterized in that, A first linear guide rail is provided on the first detection substrate, a first slider is provided on the first linear guide rail, the first driving mechanism is assembled onto a first mounting plate, the first mounting plate is connected to a connecting plate, and the connecting plate is connected to the first slider.

9. The thread detection device according to claim 1, characterized in that, The positioning component includes a first positioning pin and a second positioning pin, which are respectively inserted into positioning holes arranged diagonally on the workpiece.

10. A thread inspection system, characterized in that, The device includes the thread testing device as described in claim 3, wherein the thread testing device is provided in two sets, wherein the first thread testing gauge and the second thread testing gauge of the two sets of thread testing devices have different specifications.