Thread detection mechanism with self-cleaning function

Abstract

This utility model discloses a thread inspection mechanism with self-cleaning function, comprising a double-layer positioning plate. The upper layer of the double-layer positioning plate is equipped with a mounting plate via a first guide fixing shaft, and the lower layer is equipped with a motor. A cylinder is mounted on the mounting plate, and a lifting shaft is mounted at the output end of the cylinder. A brush is mounted at the end of the lifting shaft. From top to bottom, the periphery of the lifting shaft is arranged with a driven wheel, a fixing component, a floating fixing block, a floating module, a quick-connect coupling, and a thread gauge. The output end of the motor protrudes from the upper layer of the double-layer positioning plate and is equipped with a synchronous pulley. A synchronous belt is provided between the synchronous pulley and the driven wheel. This utility model solves the problems of inconvenient cleaning, susceptibility to debris affecting inspection accuracy, poor drive coordination, and easy wear of components in existing technologies.

Description

Technical Field

[0001] This utility model relates to the field of thread detection technology, specifically to a thread detection mechanism with self-cleaning function. Background Technology

[0002] In machining, parts manufacturing, and other fields, thread dimensional accuracy is a key indicator of product quality and requires precise testing by thread inspection mechanisms. Currently, thread inspection mechanisms used in the industry have significant shortcomings: traditional mechanisms only have a single inspection function, and during the inspection process, metal debris, oil, and other impurities easily remain on the thread gauge. If not cleaned in time, this can lead to deviations in subsequent inspection results or even scratch the surface of the thread being inspected. Manual cleaning is not only inefficient but also prone to damaging the thread gauge due to improper operation. Furthermore, most mechanisms have poor coordination between lifting and rotating drives, causing the thread gauge to wobble during inspection, affecting accuracy. They also lack effective guiding and buffering structures, leading to component wear over time, shortening equipment lifespan, and failing to meet the demands for efficient and accurate thread inspection. Utility Model Content

[0003] The purpose of this invention is to provide a thread detection mechanism with a self-cleaning function to solve the problems of inconvenient cleaning, easy influence of debris on detection accuracy, poor drive coordination, and easy wear of components in the prior art.

[0004] To address the aforementioned technical problems, this utility model provides a thread inspection mechanism with a self-cleaning function, comprising a double-layer positioning plate. The upper layer of the double-layer positioning plate is equipped with a mounting plate via a first guide fixing shaft, and the lower layer is equipped with a motor. A cylinder is mounted on the mounting plate, and a lifting shaft is mounted at the output end of the cylinder. A brush is mounted at the end of the lifting shaft. From top to bottom, the periphery of the lifting shaft is sequentially equipped with a driven wheel, a fixing component, a floating fixing block, a floating module, a quick-connect coupling, and a thread gauge. The output end of the motor protrudes from the upper layer of the double-layer positioning plate and is equipped with a synchronous pulley. A synchronous belt is positioned between the synchronous pulley and the driven wheel.

[0005] Furthermore, a second guide fixing shaft is provided at the bottom of the double-layer positioning plate.

[0006] Furthermore, the fixing component is disposed between the double-layer top plates, and bearings are provided at the contact positions between the lifting shaft and the double-layer fixing plates, and a spline-fixed connection method is used.

[0007] Furthermore, a spring fixing block is provided at the bottom of the double-layer positioning plate, an auxiliary spring is provided inside the spring fixing block, and a limiting block that contacts the auxiliary spring is provided inside the limiting seat.

[0008] Furthermore, there are two first guide fixing shafts, and a connecting seat is provided between them.

[0009] The beneficial effects of this utility model are as follows: 1. Integrated detection and self-cleaning to ensure detection accuracy: The motor drives the driven wheel to rotate through the synchronous pulley and synchronous belt, which in turn drives the lifting shaft and the thread gauge to rotate, realizing thread size detection; after the detection is completed, the cylinder drives the lifting shaft to descend, and the brush rotates synchronously with the lifting shaft, which can quickly clean the debris and oil stains remaining inside the thread gauge without manual intervention, avoid impurities affecting subsequent detection results, and protect the thread gauge and the surface of the workpiece to be detected, thereby improving detection accuracy and equipment practicality.

[0010] 2. Stable drive and precise guidance enhance inspection stability: The bearings at the contact points between the lifting shaft and the double-layer positioning plate are fixed with splines to ensure that the lifting shaft does not deviate during rotation and lifting, guaranteeing coaxiality during thread gauge inspection; the two first guide fixed shafts on the upper layer of the double-layer positioning plate cooperate with the connecting seat to provide stable support for the mounting plate and cylinder, preventing shaking during cylinder drive; the second guide fixed shaft at the bottom further enhances the overall rigidity of the mechanism, reduces vibration during inspection, and improves inspection stability.

[0011] 3. Flexible buffering and easy maintenance extend equipment life: The floating fixed block and floating module on the lifting shaft can adaptively adjust the contact force between the thread gauge and the workpiece during inspection, avoiding rigid collision damage to the parts; the auxiliary spring in the spring fixed block cooperates with the limit block to provide buffering for the descent of the lifting shaft, preventing excessive pressure from the brush and causing wear; the quick-connect coupling facilitates quick replacement of the thread gauge, adapts to the inspection needs of different thread specifications, reduces maintenance difficulty, and extends the overall service life of the equipment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a partial structural cross-sectional view of this utility model.

[0014] The following are the labels in the diagram: 1. Double-layer positioning plate; 2. First guide fixing shaft; 3. Mounting plate; 4. Motor; 5. Cylinder; 6. Lifting shaft; 7. Brush; 8. Driven wheel; 9. Fixing component; 10. Floating fixing block; 11. Floating module; 12. Quick connector; 13. Thread gauge; 14. Synchronous pulley; 15. Synchronous belt; 16. Second guide fixing shaft; 17. Bearing; 18. Spring fixing block; 19. Auxiliary spring; 20. Limit block; 21. Connecting seat. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0016] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0017] Furthermore, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0020] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0021] Reference Figures 1 to 2 As shown, an embodiment of the thread detection mechanism with self-cleaning function of the present invention includes a double-layer positioning plate 1. The bottom of the double-layer positioning plate 1 is provided with a second guide fixing shaft 16 and a spring fixing block 18. An auxiliary spring 19 is provided inside the spring fixing block 18. The auxiliary spring 19 contacts a limit block 20. The limit block 20 is provided inside a limit seat. The upper layer of the double-layer positioning plate 1 is provided with an mounting plate 3 via two first guide fixing shafts 2, and a connecting seat 21 is provided between the two first guide fixing shafts 2. The lower layer is provided with a motor 4. A cylinder 5 is provided on the mounting plate 3, and a lifting shaft 6 is provided at the output end of the cylinder 5. A brush 7 is provided at the end of the lifting shaft 6. The lifting shaft 6 is provided with a driven wheel 8, a fixed component 9, a floating fixed block 10, a floating module 11, a quick connector 12, and a thread gauge 13 in sequence from top to bottom on its periphery; the fixed component 9 is located between the double-layer positioning plates 1, and the lifting shaft 6 and the double-layer positioning plates 1 are provided with bearings 17 at the contact positions and are fixed by splines. The output end of the motor 4 protrudes from the upper layer of the double-layer positioning plate 1 and is provided with a synchronous pulley 14. A synchronous belt 15 is provided between the synchronous pulley 14 and the driven pulley 8.

[0022] The working principle and specific operation procedure of this utility model are as follows: Step 1: Equipment Debugging and Specification Adaptation: According to the specifications of the thread to be tested, replace the thread gauge 13 with the appropriate one through the quick-connect coupling 12 to ensure that the thread gauge 13 matches the thread size of the workpiece; check whether the bearing 17 at the contact position between the lifting shaft 6 and the double-layer positioning plate 1 is adequately lubricated and whether the spline connection is firm to avoid jamming during rotation or lifting; adjust the compression of the auxiliary spring 19 in the spring fixing block 18 to ensure that the lifting shaft 6 can obtain appropriate buffering force when descending to prevent excessive wear of the brush 7; calibrate the speed of the motor 4 to ensure that the rotation speed of the thread gauge 13 is adapted to the testing requirements.

[0023] Step 2, Thread Inspection: Fix the workpiece to be inspected at the inspection station, ensuring that the workpiece thread is coaxially aligned with the thread gauge 13 on the lifting shaft 6; start the motor 4, the output of the motor 4 drives the synchronous pulley 14 to rotate, the synchronous pulley 14 drives the driven pulley 8 to rotate through the synchronous belt 15, thereby driving the lifting shaft 6 and the thread gauge 13 to rotate synchronously; start the cylinder 5 on the mounting plate 3, the output of the cylinder 5 pushes the lifting shaft 6 downward, and the rotating thread gauge 13 gradually screws into the threaded hole of the workpiece. During the process, the floating fixing block 10 and the floating module 11 adaptively adjust the contact force to avoid rigid collision; if the thread gauge 13 can be screwed in smoothly and reach the preset depth, the thread size is judged to be qualified; if jamming or inability to screw in occurs, the thread size is judged to be in deviation, and the equipment issues an alarm.

[0024] Step 3, Self-cleaning process: After the inspection is completed, cylinder 5 drives the lifting shaft 6 to continue moving downwards until the brush 7 at the end of the lifting shaft 6 contacts the preset cleaning station (or directly cleans the inside of the thread gauge 13); motor 4 keeps running, and brush 7 rotates synchronously with the lifting shaft 6 to clean the metal debris, oil and other impurities remaining inside the thread gauge 13; during the cleaning process, auxiliary spring 19 and limit block 20 cooperate to limit the descent of the lifting shaft 6 to prevent the brush 7 from pressing down excessively; after cleaning is completed, cylinder 5 drives the lifting shaft 6 to rise and reset, motor 4 stops running, waiting for the next inspection operation.

[0025] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A thread detection mechanism with self-cleaning function, characterized in that, Including double layer positioning plate (1), the upper layer is provided with mounting plate (3) through first guide fixed shaft (2), the lower layer is provided with motor (4), the mounting plate (3) is provided with pneumatic cylinder (5), the output end of pneumatic cylinder (5) is provided with lifting shaft body (6), the end of lifting shaft body (6) is provided with brush (7); The lifting shaft body (6) is sequentially provided with driven wheel (8), fixed assembly (9), floating fixed block (10), floating module (11), quick connector (12) and threaded gauge (13) from top to bottom on the circumference side; The output end of motor (4) protrudes the upper layer of double layer positioning plate (1) and is provided with synchronous wheel (14), synchronous belt (15) is arranged between synchronous wheel (14) and driven wheel (8).

2. The thread detection mechanism with self-cleaning function according to claim 1, wherein, The bottom of double layer positioning plate (1) is provided with second guide fixed shaft (16).

3. The thread detection mechanism with self-cleaning function according to claim 1, wherein, The fixed assembly (9) is arranged between double layer positioning plate (1), and the position of lifting shaft body (6) and double layer positioning plate (1) contact are all provided with bearing (17) and adopt spline fixed connection mode.

4. The thread detection mechanism with self-cleaning function according to claim 1, wherein, The bottom of double layer positioning plate (1) is provided with spring fixed block (18), the inside of spring fixed block (18) is provided with auxiliary spring (19), the inside of spring fixed block (18) is provided with limiting block (20) in contact with auxiliary spring (19).

5. The thread detection mechanism with self-cleaning function according to claim 1, wherein, The first guide fixed shaft (2) is provided with two, and connecting seat (21) is arranged between them.

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