Rolling mill bolt looseness detection device for electric vehicle steel plate production

Abstract

The invention discloses a rolling mill bolt looseness detection device for electric vehicle steel plate production, relates to the field of rolling mill bolt looseness detection, and solves the problems that the detection efficiency is low and the looseness condition is difficult to early warn and evaluate during bolt looseness detection of an existing rolling mill for electric vehicle steel plate production. A conveying groove is formed in the machine body, the conveying mechanism comprises a conveying belt and a smearing piece, and the pasting mechanism comprises a mounting frame and a mechanical claw. Glue can be smeared on the surfaces of the strain gauges while the strain gauges are adsorbed through the smearing pieces, the positions of the mechanical grippers are controlled through the pasting mechanism, the multiple sets of mechanical grippers can be adjusted at equal intervals to be in various combined shapes such as a linear shape and an annular shape, and therefore the strain gauges on the conveying mechanism can be stably taken and evenly pasted to the peripheries of bolts; and the pasting efficiency and the detection accuracy are improved.

Description

Technical Field

[0001] This invention relates to the field of rolling mill bolt loosening detection technology, specifically a rolling mill bolt loosening detection device for electric vehicle steel plate production. Background Technology

[0002] In the production of electric vehicles, steel plates are one of the most important materials. The production process requires the use of equipment such as rolling mills. To improve the stability of the equipment, a large number of bolts are usually installed on the rolling mill for connection and reinforcement. During long-term use, due to changes in the stress on the machine body, some bolts may become loose or unable to bear the force. Loosening here means that even if the bolt does not shake, it is no longer able to bear the force on the equipment during use. In this case, the bolt at that location needs to be inspected and replaced to avoid affecting the stability of the equipment operation.

[0003] In such cases, observation and shaking alone are insufficient to determine bolt looseness. Currently, the most common method is to sense the stress around the bolt to detect its tension and thus determine if it is loose. Existing detection methods often involve manually attaching strain gauges. Special adhesive is applied to one side of each strain gauge before it is individually attached to the perimeter of the bolt, and the stress around the bolt is dynamically monitored during equipment operation. This manual attachment method is inefficient, results in uneven adhesion, and can easily affect the accuracy of the test results. Summary of the Invention

[0004] The purpose of this invention is to provide a bolt loosening detection device for rolling mills used in electric vehicle steel plate production, which facilitates improved strain gauge bonding efficiency and bolt loosening detection efficiency, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a bolt loosening detection device for steel plate production in electric vehicles, comprising a machine body, a conveying mechanism, and a pasting mechanism. The machine body has a conveying groove. The conveying mechanism includes a conveyor belt installed within the conveying groove. The conveyor belt is equipped with a coating component for simultaneously adsorbing strain gauges and applying adhesive to the surface of the strain gauges. The conveying mechanism can transport the strain gauges stored in the conveying groove one by one to the required position for loading. The pasting mechanism includes a robotic arm fixedly installed on the upper side of the machine body. A mounting frame is rotatably connected to the robotic arm. The mounting frame is equipped with multiple sets of robotic claws. The pasting mechanism can control the position of the robotic claws, allowing the multiple sets of robotic claws to be adjusted at equal intervals to form various combinations such as linear and circular shapes. This enables the stable picking up of strain gauges from the conveying mechanism and uniform pasting them around the bolts, thereby improving the strain gauge pasting efficiency and bolt loosening detection efficiency.

[0006] Preferably, the pasting mechanism further includes a drive disk rotatably connected to the mounting frame. The drive disk is rotatable, and a first suction cup is rotatably connected to the mechanical claw. Multiple sets of drive grooves are evenly formed on the outer wall of the drive disk, and drive teeth are provided in the drive grooves. The mechanical claw is mounted on the drive teeth. The mounting frame is provided with a control component for controlling the position of the drive teeth, which facilitates the control of the position of the mechanical claw. This allows the multiple sets of mechanical claws to be adjusted at equal intervals to form a linear and annular shape, thereby enabling the stable picking up of strain gauges on the conveying mechanism and even pasting them around the bolts.

[0007] Preferably, the control component includes a guide block fixedly installed on the side of the drive tooth. The mounting bracket has an annular groove and a horizontal groove that can slide and connect with the outer wall of the guide block. One end of the horizontal groove is connected to the annular groove. A connecting rod is fixedly connected to the drive tooth. Adjacent connecting rods are rotatably connected to each other. Multiple sets of connecting rods can form a line in the horizontal groove. A magnetic strip for adsorbing and guiding the guide block is fixedly connected to the upper side of the horizontal groove, which facilitates the control of the position of the drive tooth.

[0008] Preferably, the coating component includes multiple sets of fixed cylinders uniformly and fixedly installed on the outer wall of the conveyor belt. A sliding column is slidably connected inside the fixed cylinder, and a first spring is fixedly connected to the sliding column. One end of the first spring is fixedly connected to the fixed cylinder. A second suction cup is fixedly connected to the sliding column. The sliding column is provided with a coating component for applying adhesive to the surface of the strain gauge. The conveying groove is provided with a conveying component for conveying adhesive to the fixed cylinder, which facilitates the simultaneous adsorption of the strain gauge and application of adhesive to the surface of the strain gauge.

[0009] Preferably, the adhesive applicator includes two sets of fixed blocks fixedly installed on the sliding column. A swing plate is rotatably connected to the fixed block via a spring shaft. An adhesive applicator cylinder is rotatably connected to the swing plate. An output frame is fixedly connected inside the swing plate. One end of the output frame is in contact with the outer wall of the adhesive applicator cylinder. The output frame is provided with multiple sets of adhesive outlet holes to facilitate adhesive application to the surface of the strain gauge.

[0010] Preferably, the conveying component includes a storage tank fixedly installed inside the machine body, a conveying pipe connected to the side of the storage tank, an annular pipe fixedly connected inside the conveyor belt, the conveying pipe connected to the side of the annular pipe, the conveying pipe rotatably connected to the side of the storage tank, multiple sets of fixed cylinders connected to the annular pipe, a first pipe and a second pipe connected to the fixed cylinder on the sliding column, a third pipe connected to the first pipe on the second suction cup, and a fourth pipe connected to the second pipe fixedly connected to the output frame, the fourth pipe connected to the glue outlet, facilitating the delivery of glue into the fixed cylinder.

[0011] Preferably, the conveying mechanism further includes two sets of drive rollers rotatably connected to the machine body. The inner wall of the conveyor belt is drivenly connected to the outer walls of the two sets of drive rollers. The conveying trough is provided with multiple sets of storage frames for storing strain gauges. An output port is provided on the upper side of the storage frame. The conveying trough is provided with a drive component for controlling the conveying state of the storage frames, so as to facilitate the conveying of the strain gauges stored in the conveying trough to the required position for loading operation.

[0012] Preferably, the driving component includes an electric telescopic rod fixedly installed in the conveying trough, a lifting frame fixedly connected to the telescopic end of the electric telescopic rod, a storage frame slidably connected to the lifting frame in the horizontal direction, a second spring fixedly connected inside the storage frame, a push plate fixedly connected to the top of the second spring, the push plate slidably connected to the inner wall of the storage frame in the vertical direction, and a feeding component for switching and feeding multiple sets of strain gauges in the conveying trough, which facilitates control of the conveying state of the storage frame.

[0013] Preferably, the feeding component includes two sets of guide rails fixedly installed in the conveying trough, the storage frame can be slidably connected to the inner wall of the guide rail in the horizontal direction, a hydraulic rod is fixedly connected in the conveying trough, and a push frame is fixedly connected to the telescopic end of the hydraulic rod. Multiple sets of the storage frames can be slidably connected to the inner wall of the push frame in the vertical direction, which facilitates the switching and feeding of multiple sets of strain gauges.

[0014] Preferably, the bottom of the machine body is provided with a drive wheel that can drive the machine body to move, the mechanical claw is provided with a cleaning turntable for cleaning the bolt end face, the mechanical claw is provided with a connecting rod, the connecting rod can swing to adjust its position and is connected to the lead wire of the strain gauge to transmit signals, which facilitates the movement control of the machine body and can assist in the signal transmission function.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention provides a bolt loosening detection device for rolling mills used in electric vehicle steel plate production. It solves the problems of low detection efficiency and difficulty in early warning assessment of loosening conditions in existing bolt loosening detection methods for electric vehicle steel plate production. The device uses a conveying mechanism to transport strain gauges stored in the conveying trough to the required positions for loading. Simultaneously, an adhesive applicator adsorbs the strain gauges and applies adhesive to their surfaces. A pasting mechanism controls the position of the mechanical claws, allowing multiple sets of claws to be adjusted at equal intervals to form linear and circular shapes. This enables the stable picking up of strain gauges from the conveying mechanism and uniform pasting them around the bolts, improving pasting efficiency and detection accuracy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural diagram of the conveying mechanism of the present invention; Figure 3 for Figure 2 Enlarged view of region A in the middle; Figure 4 This is a schematic diagram of the internal structure of the body of the present invention; Figure 5 This is a partial structural diagram of the pasting mechanism of the present invention; Figure 6 for Figure 5 Enlarged view of region B in the middle; Figure 7 This is an exploded view of a portion of the adhesive mechanism of the present invention; Figure 8 This is an exploded view of a portion of the conveying mechanism of the present invention; Figure 9 for Figure 8 Enlarged view of region C; Figure 10 This is a partial structural diagram of the driving component of the present invention; Figure 11 This is a partial cross-sectional view of the coating component of the present invention; Figure 12 for Figure 11 Enlarged view of region D in the middle; Figure 13 This is an exploded view of a portion of the coating component of the present invention; Figure 14 for Figure 13 Enlarged view of region E in the middle; Figure 15 This is a partial structural diagram of the control component of the present invention.

[0017] In the diagram: 1-Machine body; 2-Conveying trough; 3-Conveying belt; 4-Robotic arm; 5-Mounting frame; 6-Robotic claw; 7-Drive disk; 8-First suction cup; 9-Drive groove; 10-Drive gear; 11-Guide block; 12-Annular groove; 13-Horizontal groove; 14-Connecting rod; 15-Magnetic strip; 16-Fixed cylinder; 17-Sliding column; 18-First spring; 19-Second suction cup; 20-Fixed block; 21-Swing plate; 22-Glue applicator; 23-Output frame; 24 25-Dispensing hole; 26-Storage tank; 27-Conveying pipe; 28-Annular pipe; 29-First pipe; 20-Second pipe; 31-Third pipe; 32-Fourth pipe; 33-Drive roller; 34-Storage frame; 35-Outlet; 36-Electric telescopic rod; 37-Lifting frame; 38-Second spring; 39-Push plate; 40-Guide rail; 41-Hydraulic rod; 42-Push frame; 43-Drive wheel; 44-Strain gauge; 45-Cleaning turntable; 46-Connecting rod. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-15 This invention provides a technical solution: a rolling mill bolt loosening detection device for electric vehicle steel plate production, comprising a body 1, a conveying mechanism, and a pasting mechanism. The body 1 has a conveying groove 2, and the bottom of the body 1 is provided with a drive wheel 42 capable of moving the body 1. The conveying mechanism includes a conveyor belt 3 installed in the conveying groove 2. The conveyor belt 3 is provided with a coating component for adsorbing strain gauges 43 and applying adhesive to the surface of the strain gauges 43. The conveying mechanism can convey the strain gauges 43 stored in the conveying groove 2 one by one to the required position for loading. The pasting mechanism includes a mechanical arm 4 fixedly installed on the upper side of the body 1. A mounting frame 5 is rotatably connected to the mechanical arm 4. The mounting frame 5 is provided with multiple sets of mechanical claws 6. The pasting mechanism can control the position of the mechanical claws 6, so that the multiple sets of mechanical claws 6 can be adjusted at equal intervals to form various combinations such as linear and circular shapes, thereby stably picking up the strain gauges 43 on the conveying mechanism and evenly pasting them around the bolt.

[0020] The bonding mechanism also includes a drive disk 7 rotatably connected to the mounting bracket 5. The drive disk 7 can rotate. A first suction cup 8 is rotatably connected to the mechanical claw 6. Multiple sets of drive grooves 9 are evenly opened on the outer wall of the drive disk 7. Drive teeth 10 are provided in the drive grooves 9. The mechanical claw 6 is installed on the drive teeth 10. The mounting bracket 5 is provided with a control component for controlling the position of the drive teeth 10. The mechanical claw 6 is provided with a cleaning turntable 44 for cleaning the bolt end face. The mechanical claw 6 is provided with a connecting rod 45. The connecting rod 45 can swing to adjust its position and is connected to the strain gauge lead wire to transmit signals.

[0021] The control components include a guide block 11 fixedly installed on the side of the drive gear 10. The mounting bracket 5 has an annular groove 12 and a horizontal groove 13 that can slide and connect with the outer wall of the guide block 11. One end of the horizontal groove 13 is connected to the annular groove 12. A connecting rod 14 is fixedly connected to the drive gear 10. Adjacent connecting rods 14 are rotatably connected to each other. Multiple sets of connecting rods 14 can form a line in the horizontal groove 13. A magnet strip 15 for adsorbing and guiding the guide block 11 is fixedly connected to the upper side of the horizontal groove 13.

[0022] The coating component includes multiple sets of fixed cylinders 16 uniformly fixedly installed on the outer wall of the conveyor belt 3. A sliding column 17 is slidably connected inside the fixed cylinder 16. A first spring 18 is fixedly connected to the sliding column 17. One end of the first spring 18 is fixedly connected to the fixed cylinder 16. A second suction cup 19 is fixedly connected to the sliding column 17. The sliding column 17 is provided with a coating component for applying adhesive to the surface of the strain gauge 43. The conveying trough 2 is provided with a conveying component for conveying adhesive into the fixed cylinder 16.

[0023] The adhesive applicator includes two sets of fixed blocks 20 fixedly installed on the sliding column 17. A swing plate 21 is rotatably connected to the fixed block 20 via a spring shaft. An adhesive applicator 22 is rotatably connected to the swing plate 21. An output frame 23 is fixedly connected inside the swing plate 21. One end of the output frame 23 is in contact with the outer wall of the adhesive applicator 22. The output frame 23 is provided with multiple sets of adhesive outlet holes 24.

[0024] The conveying components include a storage tank 25 fixedly installed inside the machine body 1, a conveying pipe 26 connected to the side of the storage tank 25, an annular pipe 27 fixedly connected inside the conveyor belt 3, the conveying pipe 26 connected to the side of the annular pipe 27, the conveying pipe 26 rotatably connected to the side of the storage tank 25, multiple sets of fixed cylinders 16 connected to the annular pipe 27, a first pipe 28 and a second pipe 29 connected to the fixed cylinder 16 on the sliding column 17, a third pipe 30 connected to the first pipe 28 on the second suction cup 19, and a fourth pipe 31 connected to the second pipe 29 fixedly connected to the output frame 23, the fourth pipe 31 connected to the glue outlet 24.

[0025] The conveying mechanism also includes two sets of drive rollers 32 that are rotatably connected to the machine body 1. The inner wall of the conveyor belt 3 is connected to the outer wall of the two sets of drive rollers 32. The conveying trough 2 is provided with multiple sets of storage frames 33. The storage frames 33 are used to store strain gauges 43. An output port 34 is opened on the upper side of the storage frame 33. The conveying trough 2 is provided with a drive component for controlling the conveying state of the storage frame 33.

[0026] The driving component includes an electric telescopic rod 35 fixedly installed in the conveying trough 2. The telescopic end of the electric telescopic rod 35 is fixedly connected to a lifting frame 36. The storage frame 33 can slide horizontally connected to the lifting frame 36. A second spring 37 is fixedly connected inside the storage frame 33. A push plate 38 is fixedly connected to the top of the second spring 37. The push plate 38 slides vertically connected to the inner wall of the storage frame 33. The conveying trough 2 is provided with a feeding component for switching and feeding multiple sets of strain gauges 43.

[0027] The feeding component includes two sets of guide rails 39 fixedly installed in the conveying trough 2. The storage frame 33 can slide horizontally connected to the inner wall of the guide rail 39. A hydraulic rod 40 is fixedly connected in the conveying trough 2. A push frame 41 is fixedly connected to the telescopic end of the hydraulic rod 40. Multiple sets of storage frames 33 can slide vertically connected to the inner wall of the push frame 41.

[0028] Working principle: A certain amount of strain gauges 43 are stored in the storage frame 33. The hydraulic rod 40 pushes the push frame 41, causing multiple sets of storage frames 33 to slide horizontally along the guide rail 39 and the lifting frame 36. The electric telescopic rod 35 pushes the lifting frame 36 to raise and lower, thus controlling the raising and lowering of the storage frames 33 inside the lifting frame 36. The drive roller 32 controls the conveyor belt 3 to rotate intermittently, realizing the switching and adjustment of the position of the fixed cylinder 16 and the second suction cup 19. When the storage frame 33 moves upward, the upper surface of the uppermost set of strain gauges 43 inside the storage frame 33 will abut against the surface of the second suction cup 19 and the glue application cylinder 22, pushing the sliding column 17 upward, compressing the first spring 18, and squeezing the glue in the fixed cylinder 16 into the first pipe 28 and the second pipe 29, thereby allowing the glue to pass through the third pipe 30 and the second suction cup. The adhesive is applied to the middle of the strain gauge 43 by the coating plate 19 and transported to the output frame 23 and the glue outlet 24 through the fourth pipe 31, reaching the outer wall of the coating cylinder 22. As the coating cylinder 22 rolls, the adhesive is applied to the surface of the strain gauge 43. At this time, some parts of the sides of the strain gauge 43 are still blocked by the top of the storage frame 33. When the mechanical claw 6 uses the first suction cup 8 to adsorb the other side of the strain gauge 43, the strain gauge 43 needs to be pressed further to make the swing plate 21 continue to swing. The adhesive is then completely applied to one side of the strain gauge 43 by the coating cylinder 22. The initial area of ​​the second suction cup 19 is small and will expand to the surrounding areas during the adsorption process, thereby achieving full coating of the middle part of the strain gauge 43. The middle part of the second suction cup 19 is also filled with adhesive. The coating cylinder 22 is always in contact with the outer wall of the second suction cup 19 to improve the uniformity of the adhesive application.

[0029] After the second suction cup 19 adsorbs the strain gauge 43, the conveyor belt 3 drives the second suction cup 19 to move horizontally, allowing the uppermost strain gauge 43 to slide horizontally out of the output port 34 and be conveyed to the upper position by the conveyor belt 3. At this time, the upper part of the strain gauge 43 is the uncoated area, and the lower part is the coated area, which facilitates the mechanical claw 6 and the first suction cup 8 to adsorb the upper part, completing the gripping of the strain gauge 43 and improving the subsequent bonding efficiency of the strain gauge 43. The second spring 37 and the push plate 38 can always ensure that the strain gauge 43 in the storage frame 33 is in the upper position. The topmost strain gauge 43 is blocked by the storage frame 33 and can slide horizontally out of the output port 34. The electric telescopic rod 35 The displacement of each lifting and lowering is relatively fixed. After the uppermost strain gauge 43 slides out, the electric telescopic rod 35 pulls back, and when the next set of second suction cups 19 arrives, it pushes the storage frame 33 up to the required position. After the strain gauge 43 in the storage frame 33 finishes outputting, the storage frame 33 is lowered to a position flush with the guide rail 39. The hydraulic rod 40 is activated to push the push frame 41 to move horizontally a set distance, so that the next set of storage frames 33 can be switched into the lifting frame 36, while the empty storage frame 33 slides into the guide rail 39 on the other side. The setting of the push frame 41 can ensure the stable switching of multiple sets of storage frames 33, and at the same time, it can also limit and guide the vertical lifting and sliding state of the storage frame 33.

[0030] It should be noted that: by filling the storage tank 25 with glue, the conveyor belt 3 will drive one end of the conveyor pipe 26 to rotate synchronously during the rotation process. At this time, the other end of the conveyor pipe 26 always rotates with the storage tank 25 and remains connected. The conveyor pipe 26 swings and rotates in the conveyor trough 2. There is no obstruction in the middle, so that the conveyor pipe 26 will not get tangled, thus ensuring the stable delivery of glue.

[0031] The robotic arm 4 drives the mounting frame 5 to move and rotate in multiple directions, allowing the mounting frame 5 to reach any position that needs to be inspected. By controlling the rotation state of the drive disk 7, multiple sets of guide blocks 11 slide and switch within the horizontal groove 13 and the annular groove 12. When multiple sets of guide blocks 11 are all within the horizontal groove 13, the set of guide blocks 11 closest to the drive disk 7 is at the junction of the horizontal groove 13 and the annular groove 12, and the drive teeth 10 above it mesh with the drive groove 9 on the drive disk 7. The drive teeth 10 on the other guide blocks 11 do not mesh with the drive groove 9. The guide blocks 11 are connected to the same straight line by the connecting rods 14, so that the multiple sets of mechanical claws 6 are arranged horizontally. At this time, the distance between adjacent first suction cups 8 is the same as the distance between adjacent second suction cups 19 below. By controlling the mechanical arm 4, the mounting frame 5 can move the multiple sets of first suction cups 8 down to the required position, and at the same time, it can adsorb the upper part of the multiple sets of strain gauges 43. After pressing down, the glue coating tube 22 below completely applies glue to the lower surface of the strain gauges 43. After that, the suction force of the first suction cup 8 is greater than that of the second suction cup 19, so the strain gauges 43 on the second suction cup 19 can be removed.

[0032] The connecting rod 45 on the mechanical claw 6 is swung to a position where it connects to the lead wire on the strain gauge 43. The connecting rod 45 is equipped with a magnetic terminal, which can attract and connect the lead wire to realize the signal transmission function. After the connection is completed, the drive disk 7 is controlled to rotate clockwise, which drives the drive teeth 10 and guide blocks 11 above to slide along the annular groove 12. The connecting rod 14 pulls the adjacent drive teeth 10 and guide blocks 11 to move into the annular groove 12. Finally, multiple sets of drive teeth 10 and guide blocks 11 all enter the annular groove 12 to form a ring. The mechanical claw 6 above is evenly distributed. At this time, the position of the mounting bracket 5 can be controlled to move the mechanical claw 6 to the position of the bolt outer wall. The position of the cleaning turntable 44 on the mechanical claw 6 is controlled and adjusted to rotate and clean the outer wall of the bolt to be pasted, thereby improving the stability of the strain gauge 43 during pasting. By controlling the swing of multiple sets of mechanical claws 6 and the adsorption state of the first suction cup 8, the strain gauge 43 can be pasted onto the outer wall of the bolt simultaneously. The pasting process is more uniform and the pasting efficiency of the strain gauge 43 is improved.

[0033] Conversely, when it is necessary to transport the guide block 11 into the horizontal groove 13, the drive disk 7 can be controlled to rotate in the opposite direction when the guide block 11 at one end reaches the position where the horizontal groove 13 and the annular groove 12 intersect. At this time, the guide block 11 will slide from the annular groove 12 to the side of the horizontal groove 13. The guide block 11 is attracted by the magnetic strip 15, so that the guide block 11 slides into the horizontal groove 13 along the top surface of the intersection position. Then, the remaining guide blocks 11 can be driven to slide into the horizontal groove 13, and the multiple sets of mechanical claws 6 can be unfolded into a horizontal position to perform simultaneous gripping operations on the strain gauge 43.

[0034] After the strain gauge 43 is attached, the first suction cup 8 is released from its adsorption state, and the position of the mechanical claw 6 is finely adjusted to create a certain gap between the first suction cup 8 and the strain gauge 43, so as not to affect the stress sensing during the strain gauge 43 detection process. During this process, the connecting rod 45 remains connected to the lead wire. The signal is transmitted to the connecting rod 45 through the lead wire on the side of the strain gauge 43. The connecting rod 45 is connected to the stress and strain testing instrument built into the body 1 via Bluetooth or a wire, so as to realize the transmission of stress data. The stress and strain testing instrument built into the body 1 can dynamically display the stress results. First, the monitoring from the static state to the running state is carried out, and the stress change of the metal around the bolt is measured. The first step is to determine whether the bolt has failed. Secondly, stress monitoring during operation is performed to detect changes in the metal stress around the bolt, achieving real-time monitoring and improving detection efficiency and accuracy. After detection, the strain gauge 43 is picked up and removed by the first suction cup 8. Since the strain gauge 43 is typically for single use, it can be directly discarded into the trash can on the side of the machine body 1 by the mechanical claw 6. Then, the cleaning turntable 44 on the mechanical claw 6 is adjusted to clean and polish the residual glue on the outer wall of the bolt. The above steps can then be repeated to transport the strain gauge 43 to the first suction cup 8 for the next set of bolts to be tested.

[0035] It is worth noting that: when multiple sets of mechanical claws 6 are distributed in a linear or circular pattern, the position and angle of the strain gauge 43 can be adjusted by adjusting the swing and deflection of the mechanical claws 6. Furthermore, the strain gauges 43 on multiple sets of mechanical claws 6 can be pasted simultaneously or some sets can be pasted individually, making it more flexible to use. This device is suitable for use in various machines with many bolts for bolt loosening detection, such as crane turntables, large conveyors, and other equipment.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting loose bolts on rolling mills used in the production of steel plates for electric vehicles, characterized in that, include: The machine body (1) is provided with a conveying groove (2); Also includes: The conveying mechanism includes a conveyor belt (3) installed in the conveying trough (2). The conveyor belt (3) is provided with a coating part for adsorbing the strain gauges and applying glue to the surface of the strain gauges. The conveying mechanism can transport the strain gauges stored in the conveying trough (2) one by one to the required position for loading operation. The pasting mechanism includes a mechanical arm (4) fixedly installed on the upper side of the body (1), a mounting frame (5) rotatably connected to the mechanical arm (4), and multiple sets of mechanical claws (6) provided on the mounting frame (5). The pasting mechanism can control the position of the mechanical claws (6), so as to stably pick up the strain gauges on the conveying mechanism and evenly paste them around the bolts.

2. The rolling mill bolt loosening detection device for electric vehicle steel plate production according to claim 1, characterized in that: The pasting mechanism also includes a drive disk (7) rotatably connected to the mounting frame (5). The drive disk (7) is rotatably connected to the mechanical claw (6) and a first suction cup (8). Multiple sets of drive grooves (9) are evenly opened on the outer wall of the drive disk (7). Drive teeth (10) are provided in the drive grooves (9). The mechanical claw (6) is installed on the drive teeth (10). The mounting frame (5) is provided with a control component for controlling the position of the drive teeth (10).

3. The rolling mill bolt loosening detection device for electric vehicle steel plate production according to claim 2, characterized in that: The control component includes a guide block (11) fixedly installed on the side of the drive tooth (10). The mounting bracket (5) has an annular groove (12) and a horizontal groove (13) that can slide and connect with the outer wall of the guide block (11). One end of the horizontal groove (13) is connected to the annular groove (12). A connecting rod (14) is fixedly connected to the drive tooth (10). Adjacent connecting rods (14) are rotatably connected to each other. Multiple sets of connecting rods (14) can form a line in the horizontal groove (13). A magnet strip (15) for adsorbing and guiding the guide block (11) is fixedly connected to the upper side of the horizontal groove (13).

4. The rolling mill bolt loosening detection device for electric vehicle steel plate production according to claim 1, characterized in that: The coating component includes multiple sets of fixed cylinders (16) uniformly fixedly installed on the outer wall of the conveyor belt (3). A sliding column (17) is slidably connected inside the fixed cylinder (16). A first spring (18) is fixedly connected to the sliding column (17). One end of the first spring (18) is fixedly connected to the fixed cylinder (16). A second suction cup (19) is fixedly connected to the sliding column (17). A coating component for applying adhesive to the surface of the strain gauge is provided on the sliding column (17). A conveying component for conveying adhesive into the fixed cylinder (16) is provided inside the conveying groove (2).

5. The rolling mill bolt loosening detection device for electric vehicle steel plate production according to claim 4, characterized in that: The adhesive applicator includes two sets of fixing blocks (20) fixedly installed on the sliding column (17). A swing plate (21) is rotatably connected to the fixing block (20) via a spring shaft. An adhesive applicator (22) is rotatably connected to the swing plate (21). An output frame (23) is fixedly connected inside the swing plate (21). One end of the output frame (23) is in contact with the outer wall of the adhesive applicator (22). The output frame (23) is provided with multiple sets of adhesive outlet holes (24).

6. The rolling mill bolt loosening detection device for electric vehicle steel plate production according to claim 5, characterized in that: The conveying component includes a storage tank (25) fixedly installed inside the body (1), a conveying pipe (26) connected to the side of the storage tank (25), an annular pipe (27) fixedly connected inside the conveyor belt (3), the conveying pipe (26) connected to the side of the annular pipe (27), the conveying pipe (26) rotatably connected to the side of the storage tank (25), multiple sets of fixed cylinders (16) connected to the annular pipe (27), a first pipe (28) and a second pipe (29) connected to the fixed cylinder (16) on the sliding column (17), a third pipe (30) connected to the first pipe (28) on the second suction cup (19), a fourth pipe (31) connected to the second pipe (29) fixedly connected to the output frame (23), and the fourth pipe (31) connected to the glue outlet (24).

7. The rolling mill bolt loosening detection device for electric vehicle steel plate production according to claim 5, characterized in that: The conveying mechanism also includes two sets of drive rollers (32) rotatably connected to the body (1). The inner wall of the conveyor belt (3) is connected to the outer wall of the two sets of drive rollers (32). The conveying groove (2) is provided with multiple sets of storage frames (33). The storage frames (33) are used to store strain gauges. The storage frames (33) have an output port (34) on the upper side of the side. The conveying groove (2) is provided with a drive component for controlling the conveying state of the storage frames (33).

8. The rolling mill bolt loosening detection device for electric vehicle steel plate production according to claim 7, characterized in that: The driving component includes an electric telescopic rod (35) fixedly installed in the conveying trough (2). The telescopic end of the electric telescopic rod (35) is fixedly connected to a lifting frame (36). The storage frame (33) can slide horizontally connected to the lifting frame (36). A second spring (37) is fixedly connected inside the storage frame (33). A push plate (38) is fixedly connected to the top of the second spring (37). The push plate (38) slides vertically connected to the inner wall of the storage frame (33). The conveying trough (2) is provided with a feeding component for switching and feeding multiple sets of strain gauges.

9. The rolling mill bolt loosening detection device for electric vehicle steel plate production according to claim 8, characterized in that: The feeding component includes two sets of guide rails (39) fixedly installed in the conveying trough (2). The storage frame (33) can be slidably connected to the inner wall of the guide rail (39) in the horizontal direction. A hydraulic rod (40) is fixedly connected in the conveying trough (2). A push frame (41) is fixedly connected to the telescopic end of the hydraulic rod (40). Multiple sets of the storage frames (33) can be slidably connected to the inner wall of the push frame (41) in the vertical direction.

10. The rolling mill bolt loosening detection device for electric vehicle steel plate production according to claim 1, characterized in that: The bottom of the machine body (1) is provided with a drive wheel (42) that can drive the machine body (1) to move. The mechanical claw (6) is provided with a cleaning turntable (44) for cleaning the bolt end face. The mechanical claw (6) is provided with a connecting rod (45). The connecting rod (45) can swing to adjust its position and is connected to the lead wire of the strain gauge to realize signal transmission.

Images