A nut groove detection device

Abstract

This utility model discloses a nut groove detection device, including a nut body and a mounting plate. The mounting plate is provided with a detection placement component, a detection fixing component, and a detection moving component. The nut body is located on the detection placement component, and the detection fixing component is located beside the detection placement component and limits the position of the nut body on the detection placement component. The detection moving component is provided with a detection head. The movement of the detection moving component drives the detection head to move onto the nut body to detect the nut body. This utility model can drive the nut body to rotate synchronously by 180°, realizing the circumferential angle switching of the nut groove, allowing the detection head to contact different circumferential positions of the nut groove, performing multi-position detection on the nut body, and ensuring the accuracy of the detection data.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a nut groove testing device. Background Technology

[0002] As a core component in mechanical transmission and connection, the machining accuracy of the internal channels (such as threaded channels and ball bearing raceways) of nuts directly determines the transmission efficiency, operational stability, and service life of equipment. In high-end equipment manufacturing (such as CNC machine tools, aerospace equipment, and precision instruments), the requirements for the dimensional accuracy, geometric tolerances, and surface quality of nut channels are extremely high. Even minor channel defects (such as misalignment, wear, deformation, and burrs) can lead to transmission jamming, accuracy degradation, and even safety accidents. Therefore, accurate inspection of nut channels is a crucial link in ensuring the reliability of mechanical systems.

[0003] However, existing testing devices for detecting nut groove movement can only insert the testing component into the groove from a single direction. This one-dimensional testing method cannot fully cover the actual shape of the groove, easily leading to deviations in the final test data and failing to accurately reflect the true precision of the groove. Therefore, there is a need to provide a nut groove testing device. Utility Model Content

[0004] The purpose of this invention is to provide a nut groove detection device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A nut groove detection device includes a nut body and a mounting plate. The mounting plate is provided with a detection placement component, a detection fixing component, and a detection moving component. The nut body is located on the detection placement component. The detection fixing component is located beside the detection placement component and limits the position of the nut body on the detection placement component. The detection moving component is provided with a detection head. The movement of the detection moving component drives the detection head to move onto the nut body to detect the nut body.

[0007] In a further technical solution, the detection placement component includes a placement base, a rotary cylinder, and a placement seat. The placement base is located on a mounting plate, the rotary cylinder is located inside the placement base, and the placement seat is located on the rotating end of the rotary cylinder. The placement seat is provided with a V-shaped placement groove.

[0008] In a further technical solution, the rotation stroke of the rotary cylinder is 180 degrees.

[0009] A further technical solution is provided, wherein the detection fixing component includes a support, a slide, a fixing screw, a fixing rod, and a first slide rail. The support is vertically mounted on the mounting plate and located beside the base. The first slide rail is vertically mounted on the side wall of the support. The slide is slidably connected to the first slide rail. The fixing rod is vertically connected to the slide. The fixing screw is vertically threaded to the top of the support. The bottom of the fixing screw is rotatably connected to the top of the fixing rod.

[0010] In a further technical solution, the nut body is provided with a fixing hole for fixing the fixing rod.

[0011] A further technical solution includes a moving plate, a moving seat, a detection rod, an adjusting seat, and two horizontal slide rails. The two horizontal slide rails are symmetrically arranged on a mounting plate. The bottom of the moving seat is provided with two slide rail seats. The moving seat is slidably connected to the two horizontal slide rails through the two slide rail seats. The moving plate is arranged on the moving seat. The adjusting seat is connected to the moving plate. The detection rod is horizontally arranged on the adjusting seat. The detection head is vertically connected to the bottom of the detection rod. The mounting plate is provided with a horizontally arranged sliding frame. A rotatably connected moving screw shaft is provided in the sliding frame. A threaded moving block is provided on the moving screw shaft. The moving block is connected to the bottom of the moving seat.

[0012] In a further technical solution, the mounting plate is equipped with a display screen that is electrically connected to the detection head.

[0013] In a further technical solution, the adjusting seat is provided with a mounting base, and the mounting base is provided with a dial indicator.

[0014] The beneficial effects of this utility model are:

[0015] This invention places the nut to be tested into a V-shaped placement groove in a placement base. The V-shaped placement groove automatically aligns with the outer circle of the nut using a "two-point positioning" principle, ensuring that the central axis of the nut is aligned with the detection reference during initial placement. After one test is completed, a rotary cylinder inside the placement base drives the placement base connected to its rotating end to rotate, thereby causing the nut to rotate 180° synchronously within the V-shaped placement groove. This achieves circumferential angle switching of the nut's groove, allowing the detection head to contact different circumferential positions of the nut's groove for multi-position testing, ensuring the accuracy of the test data. The 180° rotation stroke can cover half of the critical area of ​​the nut's groove. For full circumference testing, multiple rotations can be combined to avoid missed detections of local grooves due to fixed angles. This invention is particularly suitable for testing annular structures such as threaded grooves and ball bearing raceways.

[0016] When inspecting the nut body, this invention rotates the movable lead screw shaft, causing the movable lead screw to rotate within the slide frame. This causes the movable block to move along the length of the slide frame. The movement of the movable block causes the movable seat to slide on two horizontal slide rails via two slide rail seats, thereby moving the position of the detection rod towards the nut body. This allows the detection head at the bottom of the detection rod to move closer to or further away from the nut body, achieving axial position adjustment of the detection head in the nut, such as detecting the left, middle, or right end of the groove. This ensures that the detection head can accurately align with the detection points in the nut groove, such as the bottom or side of the groove. At the same time, the horizontal setting of the detection rod ensures stable contact direction between the detection head and the groove, avoiding measurement deviations caused by head tilt. The long stroke design of the horizontal slide rails allows for adjustment of the detection of different sized nut grooves according to the nut length.

[0017] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0018] Figure 1 : A three-dimensional structural diagram of this utility model.

[0019] Figure 2 Top view of this utility model.

[0020] Figure 3 : A three-dimensional structural diagram of the detection and placement component of this utility model.

[0021] Figure 4 : A three-dimensional structural diagram of the detection fixing component of this utility model.

[0022] Figure 5 Schematic diagram of the three-dimensional structure of the moving component of this utility model Figure 1 .

[0023] Figure 6 Schematic diagram of the three-dimensional structure of the moving component of this utility model Figure 2 .

[0024] Figure 7 : A schematic diagram of the nut body in this utility model.

[0025] Reference numerals: Nut body 100, fixing hole 101, mounting plate 1, detection placement component 2, placement base 21, rotary cylinder 22, placement seat 23, V-shaped placement groove 24, detection fixing component 3, support 31, slide seat 32, fixing screw 33, fixing rod 34, first slide rail 35, detection moving component 4, mounting seat 40, moving plate 41, moving seat 42, detection rod 43, adjusting seat 44, horizontal slide rail 45, slide frame 46, moving lead screw shaft 47, moving block 48, slide rail seat 49, display screen 5, dial indicator 6, detection head 7. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0027] Please refer to Figure 1-7 As shown; this utility model provides a technical solution for a nut groove detection device: a nut groove detection device includes a nut body 100 and a mounting plate 1. The mounting plate 1 is provided with a detection placement component 2, a detection fixing component 3 and a detection moving component 4. The nut body 100 is located on the detection placement component 2. The detection fixing component 3 is located beside the detection placement component 2 and limits the position of the nut body 100 on the detection placement component 2. The detection moving component 4 is provided with a detection head 7. The movement of the detection moving component 4 drives the detection head 7 to move onto the nut body 100 to detect the nut body 100.

[0028] It should be noted that the detection head 7 is an inductive micrometer probe that can detect movement within the nut body 100. The model of the inductive micrometer probe is: eddyNCDT 3001.

[0029] The nut body 100 to be tested is placed on the detection placement component 2. The nut is rigidly limited by the detection fixing component 3 to prevent displacement of the nut body 100 during the test. Then, the detection moving component 4 drives the detection head 7 to move horizontally to the detection position of the nut groove. At the same time, combined with the rotation function of the detection placement component 2, the nut body 100 is rotated 180 degrees, realizing the multi-directional detection of the nut groove by the detection head 7 through "horizontal movement + angle adjustment". The detection data is finally visualized on the display screen 5. The dial indicator 6 assists in calibrating the detection accuracy and completes the accurate measurement of parameters such as nut groove movement.

[0030] By coordinating the rotation function of the detection placement component 2 with the horizontal movement of the detection moving component 4, the detection head 7 achieves multi-dimensional coverage of the nut groove, avoiding missed detection in local areas and significantly improving the integrity and accuracy of the detection data. It also reduces interference factors such as nut body 100° offset and detection head 7 shaking during the detection process, ensuring that the detection data can truly reflect the dimensional accuracy and geometric tolerance of the nut groove, and reducing the risk of transmission jamming and accuracy decay caused by detection deviation.

[0031] In this embodiment, refer to Figure 3As shown, the detection placement component 2 includes a placement base 21, a rotary cylinder 22, and a placement seat 23. The placement base 21 is located on the mounting plate 1, the rotary cylinder 22 is located inside the placement base 21, and the placement seat 23 is located on the rotating end of the rotary cylinder 22. The placement seat 23 is provided with a V-shaped placement groove 24. The automatic centering design of the V-shaped placement groove 24 eliminates the need for repeated manual adjustment of the nut position, reducing manual positioning errors. The rotation stroke of the rotary cylinder 22 is 180 degrees.

[0032] The nut body 100 to be tested is placed in the V-shaped placement groove 24 of the placement base 23. The V-shaped placement groove 24 automatically centers the outer circle of the nut through the "two-point positioning" principle, ensuring that the central axis of the nut is aligned with the detection reference when it is initially placed. After completing one test, the rotary cylinder 22 in the placement base 21 drives the placement base 23 connected to its rotating end to rotate, thereby driving the nut body 100 in the V-shaped placement groove 24 to rotate synchronously by 180°, realizing the circumferential angle switching of the nut groove. This allows the detection head 7 to contact different circumferential positions of the nut groove, performing multi-position detection on the nut body 100 and ensuring the accuracy of the detection data. The 180° rotation stroke can cover half of the critical area of ​​the nut groove. If full circumference detection is required, it can be achieved through multiple rotation combinations, avoiding the omission of local grooves due to fixed angles. It is especially suitable for the detection of annular structures such as thread grooves and ball raceways.

[0033] In this embodiment, refer to Figure 4 As shown, the detection fixing component 3 includes a support 31, a slide 32, a fixing screw 33, a fixing rod 34, and a first slide rail 35. The support 31 is vertically mounted on the mounting plate 1 and located beside the base 21. The first slide rail 35 is vertically mounted on the side wall of the support 31. The slide 32 is slidably connected to the first slide rail 35. The fixing rod 34 is vertically connected to the slide 32. The fixing screw 33 is vertically threaded to the top of the support 31. The bottom of the fixing screw 33 is rotatably connected to the top of the fixing rod 34. The nut body 100 is provided with a fixing hole 101 for fixing the fixing rod 34.

[0034] The fixing screw 33 at the top of the rotating support 31 is rotatably connected to the top of the fixing rod 34, and the fixing rod 34 is vertically sliding with the first slide rail 35 of the support 31 through the slide block 32. The rotation of the fixing screw 33 is converted into the vertical lifting and lowering of the fixing rod 34. When the screw rotates clockwise, the fixing rod 34 slides downward along the first slide rail 35; when it rotates counterclockwise, it slides upward. When the fixing rod 34 descends to pass through the fixing hole 101 of the nut body 100, the fixing screw 33 is further finely adjusted to make the fixing rod 34 fit tightly against the inner wall of the fixing hole 101. Finally, the nut body 100 is rigidly limited in the V-shaped placement groove 24 of the placement seat 23. This prevents the nut body 100 from being displaced due to the contact of the detection head 7 and the rotation of the placement seat 23 during the detection process. The position of the nut body 100 can be limited and fixed to prevent the nut body 100 from shifting and affecting the accuracy of the detection.

[0035] In this embodiment, refer to Figure 5 and Figure 6 As shown, the detection moving component 4 includes a moving plate 41, a moving seat 42, a detection rod 43, an adjusting seat 44, and two horizontal slide rails 45. The two horizontal slide rails 45 are symmetrically arranged on the mounting plate 1. The bottom of the moving seat 42 is provided with two slide rail seats 49. The moving seat 42 is slidably connected to the two horizontal slide rails 45 through the two slide rail seats 49. The moving plate 41 is arranged on the moving seat 42. The adjusting seat 44 is connected to the moving plate 41. The detection rod 43 is horizontally arranged on the adjusting seat 44. The detection head 7 is vertically connected to the bottom of the detection rod 43. The mounting plate 1 is provided with a horizontally arranged sliding frame 46. The sliding frame 46 is provided with a rotatably connected moving screw shaft 47. The moving screw shaft 47 is provided with a threaded moving block 48. The moving block 48 is connected to the bottom of the moving seat 42.

[0036] When inspecting the nut body 100, rotating the movable lead screw shaft 47 will cause the movable lead screw to rotate within the slide frame 46, thereby causing the movable block 48 to move along the length of the slide frame 46. The movement of the movable block 48 will cause the movable seat 42 to slide on the two horizontal slide rails 45 via the two slide rail seats 49, thereby moving the position of the detection rod 43 toward the nut body 100. This will cause the detection head 7 at the bottom of the detection rod 43 to move closer to or further away from the nut body 100, thus adjusting the position of the detection head 7 in the axial direction of the nut, such as the left end, middle end, and right end of the groove. This ensures that the detection head 7 can be accurately aligned with the test point of the nut groove, such as the bottom or side of the groove. At the same time, the horizontal setting of the detection rod 43 ensures that the contact direction between the detection head 7 and the groove is stable, avoiding measurement deviation caused by the tilt of the detection head 7. The long stroke design of the horizontal slide rail 45 can adjust the detection of different sized nut grooves according to the length of the nut body 100.

[0037] In this embodiment, the mounting plate 1 is provided with a display screen 5 electrically connected to the detection head 7. The display screen 5 is electrically connected to the detection head 7 and receives displacement data collected by the detection head 7 in real time, such as channel runout error and dimensional deviation, and presents it visually in digital or curve form, without the need for manual reading of the fine scale of the detection head 7;

[0038] In this embodiment, the adjusting seat 44 is provided with a mounting seat 40, and the mounting seat 40 is provided with a dial indicator 6. The probe of the dial indicator 6 contacts the detection rod 43 or the adjusting seat 44 to calibrate the movement accuracy of the detection moving part 4. For example, when fine-tuning the position of the detection rod 43, the adjustment amount is confirmed by the reading of the dial indicator 6, and it can also help verify the measurement accuracy of the detection head 7. The calibration function of the dial indicator 6 can correct the small deviations of the detection moving part 4 in real time, avoid the impact of mechanical wear caused by long-term use of the device on the detection accuracy, ensure the repeatability error of the detection data, and meet the stringent accuracy requirements of high-end equipment manufacturing for nut grooves.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A nut channel detection device comprising a nut body (100), characterized in that: It also includes a mounting plate (1), on which a detection placement component (2), a detection fixing component (3) and a detection moving component (4) are provided. The nut body (100) is located on the detection placement component (2). The detection fixing component (3) is located beside the detection placement component (2) and the detection fixing component (3) limits the position of the nut body (100) on the detection placement component (2). The detection moving component (4) is provided with a detection head (7). The detection moving component (4) moves and drives the detection head (7) to move to the nut body (100) to detect the nut body (100).

2. The nut channel detection device of claim 1, wherein: The detection placement component (2) includes a placement base (21), a rotary cylinder (22) and a placement seat (23). The placement base (21) is located on the mounting plate (1), the rotary cylinder (22) is located inside the placement base (21), and the placement seat (23) is located on the rotating end of the rotary cylinder (22). The placement seat (23) is provided with a V-shaped placement groove (24).

3. A nut channel detection device according to claim 2, wherein: The rotary cylinder (22) has a rotational stroke of 180 degrees.

4. The nut channel detection apparatus of claim 2, wherein: The detection fixing component (3) includes a support (31), a slide (32), a fixing screw (33), a fixing rod (34), and a first slide rail (35). The support (31) is vertically mounted on the mounting plate (1) and located next to the placement base (21). The first slide rail (35) is vertically mounted on the side wall of the support (31). The slide (32) is slidably connected to the first slide rail (35). The fixing rod (34) is vertically connected to the slide (32). The fixing screw (33) is vertically threaded to the top of the support (31). The bottom of the fixing screw (33) is rotatably connected to the top of the fixing rod (34).

5. A nut channel detection device according to claim 4, wherein: The nut body (100) is provided with a fixing hole (101) for fixing the fixing rod (34).

6. The nut groove detection device according to claim 1, characterized in that: The detection moving component (4) includes a moving plate (41), a moving seat (42), a detection rod (43), an adjusting seat (44), and two horizontal slide rails (45). The two horizontal slide rails (45) are symmetrically arranged on the mounting plate (1). The bottom of the moving seat (42) is provided with two slide rail seats (49). The moving seat (42) is slidably connected to the two horizontal slide rails (45) through the two slide rail seats (49). The moving plate (41) is arranged on the moving seat (42). The adjusting seat (44) is connected to the moving plate (41). The detection rod (43) is horizontally set on the adjusting seat (44). The detection head (7) is vertically connected to the bottom of the detection rod (43). The mounting plate (1) is provided with a horizontally set sliding frame (46). The sliding frame (46) is provided with a rotatingly connected moving screw shaft (47). The moving screw shaft (47) is provided with a threaded moving block (48). The moving block (48) is connected to the bottom of the moving seat (42).

7. A nut channel detection device according to claim 6, wherein: The mounting plate (1) is provided with a display screen (5) that is electrically connected to the detection head (7).

8. The nut channel detection apparatus of claim 6, wherein: The adjusting seat (44) is provided with a mounting seat (40), and the mounting seat (40) is provided with a micrometer (6).

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