A device for automatically detecting nut threads

By designing a rotating part and a clamping and cleaning mechanism, the problems of unstable clamping and incomplete cleaning of internal threads during the inspection of hexagonal nuts were solved, achieving high precision and efficient automation in nut thread inspection.

CN224365765UActive Publication Date: 2026-06-16HEADSPRING AUTO PARTS (SUZHOU) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEADSPRING AUTO PARTS (SUZHOU) CO LTD
Filing Date
2025-08-29
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing automatic nut thread inspection equipment has difficulty in stably clamping and cleaning metal debris from the internal threads when inspecting hexagonal nuts, resulting in inaccurate inspection results and low production efficiency.

Method used

An adjustment and cleaning mechanism is designed, comprising a rotating part, a first clamping part, and a first cleaning part. By rotating and moving the rotating part, the nut is stably clamped and the internal thread is cleaned, ensuring detection accuracy.

Benefits of technology

It achieves stable clamping of hexagonal nuts and thorough cleaning of internal threads, improving the accuracy and production efficiency of testing equipment and reducing manual intervention time.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224365765U_ABST
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Abstract

The utility model discloses an automatic detection nut thread equipment, including the casing and the detection equipment of slidingly setting in the casing top and being used for detecting nut thread, and the detection equipment still includes adjusting and cleaning mechanism, adjusting and cleaning mechanism sets up the top of casing, and adjusting and cleaning mechanism includes rotary part, first cleaning part and first clamping part, rotary part rotatoryly sets up the top of casing, and rotary part is located the side of detection equipment, first cleaning part rotatoryly sets up the bottom of rotary part, and first cleaning part is used for cleaning the metal scrap inside the nut of detection, first clamping part rotatoryly sets up the bottom of rotary part, and first clamping part is located the side of first cleaning part, and first clamping part is used for clamping and adjusting the position of the nut of detection, the device has solved the problem that hexagon nut is difficult to stabilize and is inconvenient to clean the metal scrap in the nut, has reached the quick automatic positioning and the cleaning effect of being convenient for the metal scrap in the nut.
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Description

Technical Field

[0001] This utility model relates to the field of nut detection technology, and more specifically, to an automatic nut thread detection device. Background Technology

[0002] In industrial production, nuts are crucial fasteners, and their quality directly affects the stability and safety of machinery. Therefore, accurate inspection of nut threads is a key step in ensuring nut quality, leading to the development of automated nut thread inspection equipment.

[0003] Currently, automated nut thread inspection equipment on the market has significant technical shortcomings when inspecting hexagonal nuts. Firstly, due to the unique geometry of hexagonal nuts, their six end faces have specific angular relationships in spatial distribution, making it difficult for existing clamping mechanisms to stably and accurately clamp two opposite end faces simultaneously. During inspection, the hexagonal nut is prone to shaking or displacement due to unstable clamping, causing the inspection equipment to fail to accurately obtain various thread parameters, such as pitch and thread angle, thus affecting the accuracy and reliability of the inspection results and reducing production efficiency and product quality.

[0004] On the other hand, during the manufacturing process of nuts, metal debris easily remains on the internal threads. If this metal debris is not cleaned promptly and thoroughly, it can interfere with the detection equipment's identification and measurement of the threads during inspection. For example, metal debris may obscure certain critical parts of the thread, causing the detection equipment to misjudge the thread's integrity and dimensional accuracy, thus yielding incorrect test results. Most existing automatic nut thread inspection equipment lacks effective internal thread cleaning functions or its cleaning methods are not thorough enough to meet the demands of high-precision inspection. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an automatic nut thread detection device that can adjust the nut position and clean metal debris.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This utility model is further configured as follows: it includes a housing and a testing device slidably disposed on the top of the housing for detecting nut threads. The nut thread testing device also includes an adjustment and cleaning mechanism. The adjustment and cleaning mechanism is disposed above the housing and includes a rotating part, a first cleaning part, and a first clamping part. The rotating part is rotatably disposed above the housing and is located beside the testing device. The first cleaning part is rotatably disposed at the bottom of the rotating part and is used to clean metal debris inside the nut to be tested. The first clamping part is rotatably disposed at the bottom of the rotating part and is located beside the first cleaning part, and is used to clamp and adjust the position of the nut to be tested.

[0008] By adopting the above technical solution, the problems of unstable clamping of hexagonal nuts and inconvenience in cleaning metal debris inside the nuts are solved, achieving rapid automatic positioning and easy cleaning of metal debris inside the nuts.

[0009] The present invention is further configured such that: the adjustment and cleaning mechanism includes a first linear guide rail, an electric slide rail, a pushing cylinder, and a bearing part; the first linear guide rail has a pair and is respectively disposed on the top of the housing; the electric slide rail has a pair and is respectively slidably disposed on the top of the first linear guide rail; the pushing cylinder has a pair and is respectively disposed on the end face of the electric slide rail; the bearing part has a pair and is respectively disposed on the output end of the pushing cylinder, and the bearing part is used to bear the nut to be tested.

[0010] The present invention is further configured such that: the adjusting cleaning mechanism includes a fixing part, a first hydraulic cylinder, a displacement plate, and a second linear guide rail; the fixing part is located on the top of the housing and is located beside the detection equipment, and is located above the rotating part; the first hydraulic cylinder is located at the bottom of the fixing part and is located beside the detection equipment; the displacement plate is located at the output end of the first hydraulic cylinder and is located above the rotating part; the second linear guide rail is located beside the fixing part, and the end face of the displacement plate is slidably connected to the second linear guide rail.

[0011] The present invention is further configured such that: the adjustment and cleaning mechanism includes a first rotating part and a rotating rod; the first rotating part is disposed at the bottom of the displacement plate and is located above the rotating part; the rotating rod is disposed at the output end of the first rotating part, and the end face of the rotating rod is fixedly connected to the top of the rotating part, so that when the rotating rod rotates, it can drive the rotating part to rotate synchronously.

[0012] The present invention is further configured such that: the adjustment and cleaning mechanism includes a first rotary cylinder and a first connecting part; the first rotary cylinder is disposed at the top of the rotating part; the first connecting part is rotatably disposed at the bottom of the rotating part, and the first connecting part is connected to the output end of the rotary cylinder, and the bottom of the first connecting part is fixedly connected to the first cleaning part.

[0013] The present invention is further configured such that: the adjustment and cleaning mechanism includes a second rotary cylinder and a clamping cylinder; the second rotary cylinder is disposed on the top of the rotating part and is located beside the first rotary cylinder; the clamping cylinder is rotatably disposed at the bottom of the rotating part, and the top of the clamping cylinder is connected to the output end of the second rotary cylinder, and the output end of the clamping cylinder is connected to the first clamping part, so that when the second rotary cylinder is started, it can drive the clamping cylinder and the first clamping part to rotate synchronously.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] By setting up an adjustment and cleaning mechanism, the rotating part is driven to rotate, thereby exchanging the positions of the first clamping part and the first cleaning part. After the first clamping part is positioned above the nut to be tested, the rotating part drives the first clamping part downwards until it supports the nut. Then, the rotating part is rotated again to position the nut below the testing equipment, and its position is adjusted to ensure symmetry between its two ends, allowing for stable clamping by the subsequent clamping mechanism. This reduces worker intervention and shortens the initial adjustment time for the nut. Next, the rotating part rises and rotates again, exchanging the positions of the first cleaning part and the first clamping part. Then, the rotating part descends, driving the first cleaning part downwards until it enters the interior of the nut and rotates to clean the inside, ensuring the accuracy of the testing equipment during the testing process. Attached Figure Description

[0016] Figure 1 This is a first-view perspective three-dimensional structural diagram of an automatic nut thread detection device according to this utility model;

[0017] Figure 2 This is a front view of an automatic nut thread detection device according to the present invention.

[0018] Figure 3 This is a side view of an automatic nut thread detection device according to the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of the electric slide rail and the first cleaning part of an automatic nut thread detection device according to this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the second linear guide and the bearing part of an automatic nut thread detection device according to the present invention;

[0021] Figure 6 for Figure 1 Enlarged structural diagram at point A in the middle;

[0022] Figure 7 for Figure 3Enlarged structural diagram at point B;

[0023] Explanation of reference numerals in the attached drawings: 1. Housing; 2. Detection equipment; 3. Adjustment and cleaning mechanism; 31. Rotating part; 32. First cleaning part; 33. First clamping part; 34. First linear guide rail; 35. Electric slide rail; 36. Pushing cylinder; 37. Bearing part; 38. Fixing part; 39. First hydraulic cylinder; 391. Displacement plate; 392. Second linear guide rail; 393. First rotating part; 394. Rotating rod; 395. First rotating cylinder; 396. First connecting part; 397. Second rotating cylinder; 398. Clamping cylinder. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0026] Please see Figure 1-7 The present invention provides the following technical solution:

[0027] Example 1 includes a housing 1 and a testing device 2 slidably disposed on the top of the housing 1 for detecting nut threads. The nut thread testing device 2 also includes an adjustment and cleaning mechanism 3. The adjustment and cleaning mechanism 3 is disposed above the housing 1 and includes a rotating part 31, a first cleaning part 32, and a first clamping part 33. The rotating part 31 is rotatably disposed above the housing 1 and is located beside the testing device 2. The first cleaning part 32 is rotatably disposed at the bottom of the rotating part 31 and is used to clean metal debris inside the nut to be tested. The first clamping part 33 is rotatably disposed at the bottom of the rotating part 31 and is located beside the first cleaning part 32. The first clamping part 33 is used to clamp and adjust the position of the nut to be tested.

[0028] In this embodiment, there is a pair of first clamping parts 33. The first clamping parts 33 are inserted into the middle of the nut and are relatively far apart. The nut to be tested is clamped by an internal support clamping method, and the first cleaning part 32 is preferably made of nylon.

[0029] First, the rotating part 31 is driven to rotate, causing the first clamping part 33 and the first cleaning part 32 to interchange positions. Once the first clamping part 33 is above the nut to be tested, the rotating part 31 moves the first clamping part 33 downwards until it supports the nut. Then, the rotating part 31 is rotated again, positioning the nut below the testing device 2, and its position is adjusted to ensure symmetry between its two ends, allowing for stable clamping by the subsequent clamping mechanism. This reduces worker intervention and shortens the initial adjustment time for the nut. Next, the rotating part 31 rises and rotates again, causing the first cleaning part 32 and the first clamping part 33 to interchange positions. Then, the rotating part 31 descends, causing the first cleaning part 32 to descend as well, until it enters the nut and rotates to clean the interior, ensuring the accuracy of the testing device 2 during the testing process.

[0030] See Figures 2-5 The adjustment and cleaning mechanism 3 also includes a first linear guide rail 34, an electric slide rail 35, a push cylinder 36, and a bearing part 37; the first linear guide rail 34 has a pair and is respectively disposed on the top of the housing 1; the electric slide rail 35 has a pair and is respectively slidably disposed on the top of the first linear guide rail 34; the push cylinder 36 has a pair and is respectively disposed on the end face of the electric slide rail 35; the bearing part 37 has a pair and is respectively disposed on the output end of the push cylinder 36, and the bearing part 37 is used to bear the nut to be tested.

[0031] In this embodiment, the top of the electric slide rail 35 is provided with an annular support platform for placing the nut to be tested. Initially, the worker places the nut to be tested on top of the annular support platform. Then, the electric slide rail 35 slides along the first linear guide rail 34, and the rotating part 31 rotates synchronously and clamps the nut to be tested through the first clamping part 33. After clamping, the position of the nut to be tested is adjusted by rotation. At this time, the pair of electric slide rails 35 are in a relatively close moving state. Next, the pushing cylinder 36 is activated, driving the bearing parts 37 to move closer together until both bearing parts 37 are below the testing device 2 and then stop. It should be noted that a preset distance is maintained between the moving bearing parts 37, and they do not completely contact each other. Afterwards, the rotating part 31 and the first clamping part 33 descend, placing the nut to be tested on top of the pair of bearing parts 37. At this time, the hollow position of the nut to be tested aligns with the gap between the pair of bearing parts 37, providing a passage for the testing device 2 and the first cleaning part 32 to pass through, thereby ensuring complete testing and thorough cleaning of the nut to be tested.

[0032] See Figures 5-7The adjustment and cleaning mechanism 3 also includes a fixing part 38, a first hydraulic cylinder 39, a displacement plate 391, and a second linear guide rail 392. The fixing part 38 is located on the top of the housing 1 and is situated beside the detection device 2, and is also located above the rotating part 31. The first hydraulic cylinder 39 is located at the bottom of the fixing part 38 and is situated beside the detection device 2. The displacement plate 391 is located at the output end of the first hydraulic cylinder 39 and is situated above the rotating part 31. The second linear guide rail 392 is located beside the fixing part 38, and the end face of the displacement plate 391 is slidably connected to the second linear guide rail 392.

[0033] When it is necessary to drive the rotating part 31 to move in an upward and downward motion, the first hydraulic cylinder 39 is activated first. When the first hydraulic cylinder 39 is activated, it can drive the displacement plate 391 and the rotating part 31 to move in a synchronous downward and upward motion. During the movement of the displacement plate 391, it can move stably along the second linear guide rail 392, thereby realizing the upward and downward movement of the rotating part 31.

[0034] See Figure 5 and Figure 6 The adjustment and cleaning mechanism 3 also includes a first rotating part 393 and a rotating rod 394; the first rotating part 393 is disposed at the bottom of the displacement plate 391 and is located above the rotating part 31; the rotating rod 394 is disposed at the output end of the first rotating part 393 and the end face of the rotating rod 394 is fixedly connected to the top of the rotating part 31, so that when the rotating rod 394 rotates, it can drive the rotating part 31 to rotate synchronously.

[0035] In order to drive the rotating part 31 to rotate, the first rotating part 393 is preferably an electric rotating cylinder, which can drive the rotating rod 394 and the rotating part 31 to rotate synchronously when the first rotating part 393 is started.

[0036] See Figures 4-7 The adjustment and cleaning mechanism 3 also includes a first rotary cylinder 395 and a first connecting part 396; the first rotary cylinder 395 is disposed on the top of the rotating part 31; the first connecting part 396 is rotatably disposed on the bottom of the rotating part 31, and the first connecting part 396 is connected to the output end of the rotary cylinder, and the bottom of the first connecting part 396 is fixedly connected to the first cleaning part 32.

[0037] When the first rotary cylinder 395 is started, it can drive the first cleaning part 32 to rotate through the first connecting part 396, thereby achieving the cleaning effect of metal debris inside the nut to be tested.

[0038] See Figures 5-7The adjustment and cleaning mechanism 3 also includes a second rotary cylinder 397 and a clamping cylinder 398. The second rotary cylinder 397 is disposed on the top of the rotating part 31 and is located beside the first rotary cylinder 395. The clamping cylinder 398 is rotatably disposed at the bottom of the rotating part 31, and the top of the clamping cylinder 398 is connected to the output end of the second rotary cylinder 397. The output end of the clamping cylinder 398 is connected to the first clamping part 33. When the second rotary cylinder 397 is started, it can drive the clamping cylinder 398 and the first clamping part 33 to rotate synchronously.

[0039] When the clamping cylinder 398 is activated, it can drive a pair of first clamping parts 33 to move closer or further apart. In order to adjust the position of the clamping cylinder 398 and the first clamping parts 33, the second rotary cylinder 397 is activated, and when the second rotary cylinder 397 is activated, the clamping cylinder 398 and the first clamping parts 33 can rotate synchronously.

[0040] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

Claims

1. An automatic nut thread detection device, comprising a housing (1) and a detection device (2) slidably disposed on the top of the housing (1) for detecting nut threads, characterized in that: The nut thread inspection equipment (2) also includes an adjustment and cleaning mechanism (3); The adjustment cleaning mechanism (3) is located above the housing (1). The adjustment cleaning mechanism (3) includes a rotating part (31), a first cleaning part (32) and a first clamping part (33). The rotating part (31) is rotatably disposed above the housing (1), and the rotating part (31) is located on the side of the testing equipment (2); The first cleaning part (32) is rotatably disposed at the bottom of the rotating part (31), and the first cleaning part (32) is used to clean the metal debris inside the nut to be tested; The first clamping part (33) is rotatably disposed at the bottom of the rotating part (31), and the first clamping part (33) is located on the side of the first cleaning part (32), and the first clamping part (33) is used to clamp and adjust the position of the nut to be tested.

2. The automatic nut thread detection device according to claim 1, characterized in that: The adjustment and cleaning mechanism (3) also includes a first linear guide (34), an electric slide rail (35), a push cylinder (36), and a bearing part (37); the first linear guide (34) has a pair and is respectively disposed on the top of the housing (1); the electric slide rail (35) has a pair and is respectively slidably disposed on the top of the first linear guide (34); the push cylinder (36) has a pair and is respectively disposed on the end face of the electric slide rail (35); the bearing part (37) has a pair and is respectively disposed on the output end of the push cylinder (36), and the bearing part (37) is used to carry the nut to be tested.

3. The automatic nut thread detection device according to claim 2, characterized in that: The adjustment and cleaning mechanism (3) also includes a fixing part (38), a first hydraulic cylinder (39), a displacement plate (391), and a second linear guide rail (392); the fixing part (38) is located on the top of the housing (1), and the fixing part (38) is located beside the detection device (2), and the fixing part (38) is located above the rotating part (31); the first hydraulic cylinder (39) is located at the bottom of the fixing part (38), and the first hydraulic cylinder (39) is located beside the detection device (2); the displacement plate (391) is located at the output end of the first hydraulic cylinder (39), and the displacement plate (391) is located above the rotating part (31); the second linear guide rail (392) is located beside the fixing part (38), and the end face of the displacement plate (391) is slidably connected to the second linear guide rail (392).

4. An automatic nut thread detection device according to claim 3, characterized in that: The adjustment cleaning mechanism (3) also includes a first rotating part (393) and a rotating rod (394); the first rotating part (393) is located at the bottom of the displacement plate (391) and above the rotating part (31); the rotating rod (394) is located at the output end of the first rotating part (393) and the end face of the rotating rod (394) is fixedly connected to the top of the rotating part (31), so that when the rotating rod (394) rotates, it can drive the rotating part (31) to rotate synchronously.

5. An automatic nut thread detection device according to claim 4, characterized in that: The adjustment cleaning mechanism (3) also includes a first rotary cylinder (395) and a first connecting part (396); the first rotary cylinder (395) is disposed on the top of the rotating part (31); the first connecting part (396) is rotatably disposed on the bottom of the rotating part (31), and the first connecting part (396) is connected to the output end of the rotary cylinder, and the bottom of the first connecting part (396) is fixedly connected to the first cleaning part (32).

6. An automatic nut thread detection device according to claim 5, characterized in that: The adjustment cleaning mechanism (3) also includes a second rotary cylinder (397) and a clamping cylinder (398); the second rotary cylinder (397) is located on the top of the rotating part (31) and is located next to the first rotary cylinder (395); the clamping cylinder (398) is rotatably located at the bottom of the rotating part (31), and the top of the clamping cylinder (398) is connected to the output end of the second rotary cylinder (397), and the output end of the clamping cylinder (398) is connected to the first clamping part (33). When the second rotary cylinder (397) is started, it can drive the clamping cylinder (398) and the first clamping part (33) to rotate synchronously.