High-strength fastener detection device

Abstract

A high-strength fastener detection device provided by the present invention comprises a detection table and a nut used for detection, the detection table is slidably provided with a vertical plate, one side of the vertical plate is rotatably provided with a detection screw, one end of the detection screw penetrates through the other side of the vertical plate and is fixedly sleeved with a half gear, one side of the half gear is engaged with a driving frame, and the driving frame is engaged with the nut. The driving frame is in sliding connection with the other side of the vertical plate, and one side of the driving frame is in transmission connection with a driving mechanism. According to the invention, meshing transmission of the half gear and the driving frame is matched with the reciprocating driving mechanism, so that forward and reverse intermittent rotation of the detection screw is realized, nut screwing-in, torque loading and screwing-out actions are automatically completed, and manual intervention is not needed in the whole process; through cooperation of the contact type sensor, the electric cylinder and the detection screw rod, when one end of the detection screw rod is in contact with the contact type sensor, the detection screw rod can be smoothly screwed into the nut, namely, the nut is a good nut, otherwise, the detection screw rod cannot be screwed into the nut is a defective nut, and therefore the practicability of the detection device is improved.

Description

Technical Field

[0001] The present invention belongs to the field of detection technology, and more specifically, relates to a high-strength fastener detection device. Background Art

[0002] In the field of mechanical manufacturing and equipment, the reliability of high-strength fasteners (such as bolts and nuts) directly determines the secure connection of critical structures. Their testing is a core process for ensuring product quality. Such testing equipment is primarily used in aerospace, rail transit, heavy machinery, and other applications, requiring comprehensive testing of fasteners' tensile strength, thread fit accuracy, and dynamic torque performance.

[0003] However, existing high-strength fastener testing equipment has a significant efficiency bottleneck in the coordinated testing of bolt torque and thread quality. The current method requires the operator to manually engage the nut with the rotating bolt, simultaneously observe the thread matching status during the torque test, and determine by hand or visually whether there are defects such as scratches, deformation, or poor engagement on the internal threads of the nut. This method not only requires frequent starting and stopping of the equipment to load and unload test pieces, resulting in a more than 30% increase in single-piece testing time, but manual intervention can easily lead to problems such as uneven torque loading rate and thread alignment deviation, affecting the consistency of test data.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a high-strength fastener detection device is provided to achieve a purpose with greater practical value. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a high-strength fastener detection device, which is achieved by the following specific technical means:

[0006] A high-strength fastener detection device comprises a detection platform and a nut for detection, wherein the detection platform is slidably mounted with a vertical plate, a detection screw is rotatably mounted on one side of the vertical plate, one end of the detection screw passes through the other side of the vertical plate and is fixedly sleeved with a half gear, a drive frame is meshingly mounted on one side of the half gear, the drive frame and the other side of the vertical plate are slidingly connected, one side of the drive frame is transmission-connected with a drive mechanism, a limiting sleeve, a storage bar and a contact sensor for judging the quality of the nut are sequentially arranged on the front side of the detection screw, the inner walls of the limiting sleeve and the nut are both fitted with both sides of the outer wall of the nut, the storage bar is set at an inclination angle, and the side wall of the limiting sleeve is mounted with a discharge mechanism through multiple sets of brackets.

[0007] Preferably, there are at least two groups of brackets, and the discharging mechanism includes a conveyor belt fixedly connected to the bottom ends of the two groups of brackets, and the two groups of conveyor belts are used to transport defective nuts and good nuts respectively.

[0008] Preferably, multiple groups of driving teeth that can engage with the half gears are arranged at intervals at the top end of the driving frame, and the driving mechanism includes a first driving rod installed on the side wall of the driving frame, the other end of the first driving rod is hinged to the second driving rod, and the other end of the second driving rod is rotatably installed with a driving wheel, the driving wheel is rotatably installed on the side wall of the vertical plate, and is connected to the motor for transmission.

[0009] Preferably, multiple groups of T-shaped slide grooves are arranged at intervals on the top side of the inspection table, and multiple groups of sliders matching the T-shaped slide grooves are arranged at intervals on the bottom side of the vertical plate. The vertical plate is slidably connected to the inspection table through the bottom sliders. An electric cylinder is installed on one side of the top of the inspection table, and the output end of the electric cylinder is fixedly connected to the side wall of the vertical plate.

[0010] Preferably, the inspection platform is provided with a plurality of plug-in slots on one side close to the discharge ends of the two groups of conveyor belts, and two groups of material receiving boxes are slidably installed through the plug-in slots, and the two groups of material receiving boxes are respectively provided corresponding to the two groups of conveyor belts.

[0011] Preferably, the bottom end of the material storage bar is mounted on the detection table via a bracket, and the bottom end of the contact sensor is mounted on the side wall of the material storage bar via a bracket.

[0012] Preferably, the electric cylinder, the driving motor of the driving wheel, the conveyor belt driving mechanism and the contact sensor are electrically connected to the controller.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention utilizes a meshing transmission between the half gear and the drive frame in conjunction with a reciprocating drive mechanism to achieve intermittent forward and reverse rotation of the detection screw, automatically completing the nut screwing-in, torque loading, and unscrewing actions without requiring manual intervention. A contact sensor, an electric cylinder, and the detection screw cooperate to ensure that when one end of the detection screw contacts the contact sensor, the detection screw can be smoothly screwed into the nut, indicating a good nut. Otherwise, it cannot be screwed in, indicating a defective nut, thereby improving the practicality of the detection device.

[0015] 2. The present invention adopts a double-sided fitting design between the limiting sleeve and the outer wall of the nut to ensure that the nut will not rotate on its own during the detection process, thereby causing misjudgment. The inclined feeding design of the material storage bar and the plug-in design of the material receiving box eliminates the need for manual loading and improves work efficiency. The material receiving box and other vulnerable parts adopt a quick-release structure, and replacement takes less than ten minutes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0017] Figure 2 It is a schematic diagram of the back side of the present invention.

[0018] Figure 3 It is a cross-sectional schematic diagram of the present invention.

[0019] Figure 4 It is a schematic top view of the present invention.

[0020] In the figure, the corresponding relationship between component names and drawing numbers is as follows:

[0021] 1. Inspection table; 2. Vertical plate; 3. Inspection screw; 4. Half gear; 5. Drive frame; 6. First drive rod; 7. Second drive rod; 8. Drive wheel; 9. Limiting sleeve; 10. Bracket; 11. Material storage bar; 12. Nut; 13. Contact sensor; 14. Conveyor belt; 15. Material receiving box; 16. Plug slot; 17. Electric cylinder; 18. T-type slide. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Example:

[0024] As attached Figure 1 To the attached Figure 4 As shown:

[0025] The present invention provides a high-strength fastener detection device, comprising a detection platform 1 and a nut 12 for detection, wherein the detection platform 1 is slidably mounted with a vertical plate 2, a detection screw 3 is rotatably mounted on one side of the vertical plate 2, one end of the detection screw 3 passes through the other side of the vertical plate 2 and is fixedly sleeved with a half gear 4, a driving frame 5 is meshingly mounted on one side of the half gear 4, the driving frame 5 is slidingly connected to the other side of the vertical plate 2, and one side of the driving frame 5 is transmission-connected with a driving mechanism, a limiting sleeve 9, a material storage bar 11 and a contact sensor 13 for judging whether the nut 12 is good or defective are sequentially arranged on the front side of the detection screw 3, the inner walls of the limiting sleeve 9 and the nut 12 are both fitted with the outer walls of the nut 12 on both sides, the material storage bar 11 is set at an inclination angle, and the side wall of the limiting sleeve 9 is installed with a discharging mechanism through multiple groups of brackets 10.

[0026] Among them, there are at least two groups of multiple groups of brackets 10, and the discharging mechanism includes a conveyor belt 14 fixedly connected to the bottom ends of the two groups of brackets 10. The two groups of conveyor belts 14 are used to convey defective nuts 12 and good nuts 12 respectively. Through at least two groups of brackets 10 and corresponding conveyor belts 14, automatic sorting and transportation of defective and good nuts 12 are realized, thereby improving sorting efficiency, reducing manual intervention, and ensuring classification accuracy.

[0027] Among them, multiple groups of driving teeth that can mesh with the half gear 4 are arranged at intervals at the inner top end of the driving frame 5. The driving mechanism includes a first driving rod 6 installed on the side wall of the driving frame 5. The other end of the first driving rod 6 is hinged with a second driving rod 7. The other end of the second driving rod 7 is rotatably installed with a driving wheel 8. The driving wheel 8 is rotatably installed on the side wall of the vertical plate 2 and is drivingly connected to a motor.

[0028] Among them, multiple groups of T-shaped sliding grooves 18 are opened at intervals on the top side of the detection table 1. Multiple groups of sliders matching the T-shaped sliding grooves 18 are arranged at intervals on the bottom side of the vertical plate 2. The vertical plate 2 is slidably connected to the detection table 1 through the bottom sliders. An electric cylinder 17 is installed on one side of the top end of the detection table 1. The output end of the electric cylinder 17 is fixedly connected to the side wall of the vertical plate 2. The cooperation between the T-shaped sliding groove 18 and the slider at the bottom end of the vertical plate 2 realizes smooth sliding. The electric cylinder 17 can accurately control the displacement of the vertical plate 2 to meet the detection requirements of nuts 12 of different sizes, improving the flexibility and detection range of the equipment.

[0029] Among them, multiple groups of insertion slots 16 are opened on one side of the detection table 1 near the discharge ends of the two conveyor belts 14, and two receiving boxes 15 are slidably installed through the insertion slots 16. The two receiving boxes 15 correspond to the two conveyor belts 14 respectively. The sliding receiving box 15 is convenient for quick disassembly and cleaning through the insertion slots 16, matches the discharge ends of the conveyor belts 14, optimizes the collection process, reduces downtime, and improves production efficiency.

[0030] Among them, the bottom end of the storage bar 11 is installed on the detection table 1 through a bracket 10, and the bottom end of the contact sensor 13 is installed on the side wall of the storage bar 11 through a bracket 10.

[0031] Among them, the electric cylinder 17, the driving motor of the driving wheel 8, the driving mechanism of the conveyor belt 14 and the contact sensor 13 are all electrically connected to a controller.

[0032] Working principle of this embodiment: The motor drives the second driving rod 7 and the first driving rod 6 to form a crank and connecting rod structure through the driving wheel 8, driving the driving frame 5 to perform a reciprocating linear motion. The driving teeth inside the driving frame 5 mesh with the half gear 4, converting the reciprocating motion into the forward and reverse intermittent rotation of the detection screw 3, realizing the automatic screwing into of the nut 12, applying torque and reverse screwing out actions. The electric cylinder 17 pushes the vertical plate 2 to slide along the T-shaped sliding groove 18 of the detection table 1 to ensure the accurate alignment of the detection screw 3 and the nut 12 to be measured;

[0033] Good and bad product determination mechanism for the nut 12: When the detection screw 3 is screwed into the nut 12, if the screwing is successful and the end of the detection screw 3 contacts the contact sensor 13, the controller determines it as a good product; if it cannot be screwed in (thread defect) and the sensor has no signal, it is determined as a defective product;

[0034] Sorting and conveying: After the detection is completed, the qualified and defective nuts 12 are respectively guided by two groups of conveyor belts 14 to the corresponding receiving boxes 15 to achieve automatic material separation;

[0035] System collaborative control: The controller integrates the regulation of the stroke of the electric cylinder 17, the start and stop of the drive motor, the operation of the conveyor belt 14, and the processing of sensor signals. No manual intervention is required throughout the process, realizing the full-automatic detection and sorting of the thread quality of high-strength nuts 12.

[0036] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the invention and its practical application, and to enable those of ordinary skill in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A high-strength fastener detection device, comprising a detection table (1) and a nut (12) for detection, characterized in that: The detection table (1) is slidably mounted with a vertical plate (2), and a detection screw (3) is rotatably mounted on one side of the vertical plate (2). One end of the detection screw (3) passes through the other side of the vertical plate (2) and is fixedly sleeved with a half gear (4). A driving frame (5) is meshedly mounted on one side of the half gear (4). The driving frame (5) and the other side of the vertical plate (2) are slidably connected, and one side of the driving frame (5) is transmission-connected with a driving mechanism. A limiting sleeve (9), a material storage bar (11) and a contact sensor (13) for judging whether the nut (12) is good or bad are sequentially arranged on the front side of the detection screw (3). The inner walls of the limiting sleeve (9) and the nut (12) are both fitted with both sides of the outer wall of the nut (12). The material storage bar (11) is set at an inclined angle, and the side wall of the limiting sleeve (9) is mounted with a discharging mechanism through multiple sets of brackets (10).

2. The high-strength fastener detection device according to claim 1, characterized in that: The plurality of groups of brackets (10) are at least two groups, and the discharging mechanism includes a conveyor belt (14) fixedly connected to the bottom ends of the two groups of brackets (10), and the two groups of conveyor belts (14) are used to convey defective nuts (12) and good nuts (12), respectively.

3. The high-strength fastener detection device according to claim 1, characterized in that: A plurality of groups of driving teeth that can mesh with the half gear (4) are arranged at intervals at the top end of the driving frame (5). The driving mechanism includes a first driving rod (6) mounted on the side wall of the driving frame (5), the other end of the first driving rod (6) is hinged to a second driving rod (7), the other end of the second driving rod (7) is rotatably mounted with a driving wheel (8), the driving wheel (8) is rotatably mounted on the side wall of the vertical plate (2), and is transmission-connected to a motor.

4. The high-strength fastener detection device according to claim 1, characterized in that: The top side of the inspection table (1) is provided with a plurality of groups of T-shaped slide grooves (18) at intervals, and the bottom side of the vertical plate (2) is provided with a plurality of groups of sliders matching the T-shaped slide grooves (18) at intervals. The vertical plate (2) is slidably connected to the inspection table (1) via the bottom sliders. An electric cylinder (17) is installed on one side of the top end of the inspection table (1), and the output end of the electric cylinder (17) is fixedly connected to the side wall of the vertical plate (2).

5. The high-strength fastener detection device according to claim 1, wherein: The inspection platform (1) is provided with a plurality of plug-in slots (16) on one side close to the discharge ends of the two groups of conveyor belts (14), and two groups of material receiving boxes (15) are slidably mounted through the plug-in slots (16), and the two groups of material receiving boxes (15) are respectively provided corresponding to the two groups of conveyor belts (14).

6. The high-strength fastener detection device according to claim 2, characterized in that: The bottom end of the material storage bar (11) is mounted on the detection table (1) via a bracket (10), and the bottom end of the contact sensor (13) is mounted on the side wall of the material storage bar (11) via the bracket (10).

7. The high-strength fastener detection device according to claim 1, characterized in that: The electric cylinder (17), the driving motor of the driving wheel (8), the conveyor belt (14) driving mechanism and the contact sensor (13) are electrically connected to the controller.

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