Bar flaw detection device

Abstract

The utility model relates to the technical field of bar flaw detection, in particular to a bar flaw detection device. The utility model provides a bar flaw detection device. The bar flaw detection device comprises a bar bearing table, a bar taking device, a bar conveying roller mechanism and a flaw detection device, the bar bearing table, the bar taking device and the flaw detection device are sequentially arranged in the first direction, and a bar is placed on the bar bearing table in a manner of extending in the second direction; the bar taking device comprises at least two movable guide rail platforms arranged in the second direction, and the two movable guide rail platforms are located on the two sides of the bar bearing table correspondingly. According to the bar flaw detection device, the bar feeding mechanism and the bar rotating roller system are integrated together, the system integration is higher, the bar rotating roller system does not need to be arranged, the cost is saved, the whole feeding and discharging time is shorter, the flaw detection efficiency is improved, and the flaw detection time is saved.

Description

Technical Field

[0001] This utility model relates to the field of bar material flaw detection technology, and specifically to a bar material flaw detection device. Background Technology

[0002] The principle of a spin bar flaw detector is to rotate the bar and use a flaw detection device to inspect its interior and surface to detect defects. A typical spin bar flaw detector includes an ultrasonic probe and tracking system, a bar rotating roller system, and other components. The bar rotates via the roller system, and the probe tracking system travels along a crossbeam as the bar rotates, enabling inspection of the entire bar surface. This rotational inspection method ensures that every part of the bar is uniformly inspected, improving the comprehensiveness and accuracy of the inspection.

[0003] Currently, the loading and unloading of spin-type bar flaw detectors mainly rely on the following two methods: First, manually placing the bars to be inspected from the bar support platform onto the bar rotating roller system, and then manually removing the bars after inspection. Second, using an automated gripping mechanism, such as a gantry robot, to grip the bars to be inspected from the bar support platform and place them onto the bar rotating roller system, and then removing the bars from the bar rotating roller system after inspection.

[0004] The current spin-type bar flaw detector has a cumbersome bar loading and unloading process and a long flaw detection time, which needs further optimization. Utility Model Content

[0005] (I) The problem to be solved by this utility model is that the current spin bar flaw detector has a complicated bar loading and unloading process and a long flaw detection time, and needs to be further optimized.

[0006] (II) Technical Solution

[0007] A bar stock flaw detection device includes a bar stock support platform, a bar stock picking device, a bar stock conveying roller mechanism, and a flaw detection device; the bar stock support platform, the bar stock picking device, and the flaw detection device are arranged sequentially along a first direction, and the bar stock extends along a second direction and is placed on the bar stock support platform; wherein, the bar stock picking device includes:

[0008] At least two movable guide rail platforms are arranged along the second direction. The two movable guide rail platforms are respectively located on both sides of the bar support platform. Each movable guide rail platform is equipped with a support wheel mechanism for supporting the bar. The movable guide rail platform can move along the first direction to drive the bar closer to or away from the flaw detection device.

[0009] The centering and clamping mechanism comprises two movable clamping structures, which are respectively installed on the two movable guide rail platforms and cooperate to clamp the two ends of the bar; the rotary drive mechanism is installed on one of the movable guide rail platforms and drives the bar between the two movable clamping structures to rotate around its own axis;

[0010] The bar conveying roller mechanism is arranged between the two adjacent movable guide rail platforms and is used for conveying the bar;

[0011] The flaw detection device comprises a linear module assembly and a flaw detection assembly, the flaw detection assembly is installed on the linear module assembly, and the linear module assembly is used for driving the flaw detection assembly to reciprocate in the second direction to detect the bar at different positions.

[0012] According to an embodiment of the present application, the movable clamping structure comprises a guide rail mechanism, a cylinder, a fixed seat and a sleeve, the guide rail mechanism is arranged on the table top of the movable guide rail platform and extends in the second direction, the fixed seat is installed on the guide rail mechanism, the sleeve is rotatably installed on the fixed seat and extends in the second direction, and one end of the cylinder is connected with the fixed seat and used for driving the fixed seat to move in the second direction.

[0013] According to an embodiment of the present application, the guide rail mechanism comprises a guide rail and a sliding block, the sliding block is slidably installed on the guide rail, and the fixed seat is arranged on the sliding block.

[0014] According to an embodiment of the present application, the rotary drive mechanism comprises a second motor, a speed reducer, a driving pulley, a driven pulley and a transmission belt, the driven pulley is sleeved on the sleeve of the movable clamping structure, the driving pulley is installed on the output end of the speed reducer, the driving pulley and the driven pulley are transmissionally connected through the transmission belt, and the output end of the second motor is connected with the input end of the speed reducer.

[0015] According to an embodiment of the present application, three movable guide rail platforms are arranged, and the three movable guide rail platforms are arranged in the second direction, and the two movable clamping structures are respectively installed on the two movable guide rail platforms on the two sides.

[0016] According to an embodiment of the present application, the movable guide rail platform comprises a bearing seat, an industrial guide rail, a sliding table and an electric push rod, the industrial guide rail is arranged on the bearing seat and extends in the first direction, the sliding table is installed on the industrial guide rail, one end of the electric push rod is connected with the sliding table and used for driving the sliding table to move in the first direction, and the bearing wheel mechanism is installed on the table top of the sliding table.

[0017] According to one embodiment of the utility model, the bearing wheel mechanism includes two guide wheel pieces, the two guide wheel pieces are arranged along a first direction, the guide wheel piece includes a door type frame, a roller and an axle, the door type frame is fixedly installed on the table top of the sliding table, the axle is installed on the door type frame, and the roller is installed on the axle through a bearing.

[0018] According to one embodiment of the utility model, the linear module assembly includes a bearing box in the shape of a strip, a toothed plate, a gear, a walking plate and a walking motor, the toothed plate is installed in the bearing box, the walking plate is slidingly installed at the top opening of the bearing box, the gear is engaged with the toothed plate, the walking motor is installed on the walking plate, and the output end of the walking motor is connected with the gear.

[0019] According to one embodiment of the utility model, a mounting rack is installed on the top of the walking plate, and the flaw detection assembly is installed on the mounting rack.

[0020] According to one embodiment of the utility model, a control box is further included, and the second motor is signal connected with the control box.

[0021] The utility model discloses beneficial effects:

[0022] When the bar is detected, first, the guide rail platform moves to the clamping station in the direction of approaching the bar bearing table, at this time, the bar to be detected on the clamping station is located between the two movable clamping structures, and the bar on the clamping station falls on the bearing wheel mechanism, then the two movable clamping structures cooperate to clamp the two ends of the bar to be detected, and the rotating drive mechanism drives the bar to be detected between the two movable clamping structures to rotate around its own axis. Then, the guide rail platform drives the bar to be detected to move in the direction of the flaw detection device until it moves to the flaw detection station, at this time, the bar to be detected is still rotating around its axis, the linear module assembly drives the flaw detection assembly to reciprocate along the second direction to detect different positions of the bar to be detected, after the detection of the bar to be detected is completed, the guide rail platform moves in the direction of the bar bearing table by a fixed distance, so that the bar moves to the upper side of the bar conveying roller mechanism, then, the rotating drive mechanism stops working while the two movable clamping structures release the bar, and the bar falls on the bar conveying roller mechanism, and the bar conveying roller mechanism conveys the detected bar to the next process. Then, the guide rail platform continues to move in the direction of the bar bearing table until it moves to the clamping station again, waiting for the next detection work.

[0023] Compared with the existing self-rotating bar flaw detector, the bar flaw detection device has at least the following advantages:

[0024] First, the bar feeding mechanism and the bar rotating roller system are integrated together, the system integration is higher, the bar rotating roller system does not need to be arranged again, and cost is saved.

[0025] Second, the whole feeding and discharging time is shorter, so that the flaw detection efficiency is improved, and the flaw detection time is saved. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the specific embodiment of the present application or the technical scheme in the prior art, the drawings needed to be used in the specific embodiment or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0027] Figure 1 The structural schematic diagram provided for the embodiment of the present application is shown in the figure.

[0028] Figure 2 The structural diagram of the first moving clamping structure and the rotating driving mechanism provided for the embodiment of the present application is shown in the figure.

[0029] Figure 3 The structural diagram of the first moving clamping structure provided for the embodiment of the present application is shown in the figure.

[0030] Figure 4 The schematic diagram of the bearing wheel mechanism provided for the embodiment of the present application is shown in the figure.

[0031] Figure: 1, base; 2, control box; 3, linear module assembly; 301, tooth plate; 4, walking motor; 5, mounting frame; 6, first bearing plate; 7, second bearing plate; 8, first bearing seat; 801, first industrial guide rail; 9, first sliding table; 901, first bearing wheel mechanism; 902, second motor; 903, first guide rail; 904, first sliding block; 905, first fixed seat; 906, first air cylinder; 907, first sleeve; 908, driven pulley; 909, transmission belt; 910, speed reducer; 10, second bearing seat; 101, second industrial guide rail; 11, second sliding table; 111, second bearing wheel mechanism; 12, third bearing seat; 121, third industrial guide rail; 13, third sliding table; 131, third bearing wheel mechanism; 132, second fixed plate; 133, second guide rail; 134, second sliding block; 135, second air cylinder; 136, second fixed seat; 137, second sleeve; 14, door-shaped frame; 15, roller; 16, wheel shaft. DETAILED DESCRIPTION

[0032] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] like Figures 1-4 As shown, one embodiment of this utility model provides a bar material flaw detection device, including a bar material support platform, a bar material handling device, a bar material conveying roller mechanism, and a flaw detection device; the bar material support platform, the bar material handling device, and the flaw detection device are arranged sequentially along a first direction, and the bar material extends along a second direction and is placed on the bar material support platform; wherein, the bar material handling device includes:

[0034] At least two movable guide rail platforms are arranged along the second direction. The two movable guide rail platforms are located on both sides of the bar support platform. Each movable guide rail platform is equipped with a support wheel mechanism for supporting the bar. The movable guide rail platforms can move along the first direction to drive the bar closer to or away from the flaw detection device.

[0035] The centering clamping mechanism includes two movable clamping structures, which are respectively installed on two movable guide rail platforms. The two movable clamping structures cooperate to clamp both ends of the bar.

[0036] A rotary drive mechanism is mounted on one of the movable guide rail platforms to drive the bar between the two movable clamping structures to rotate around its own axis.

[0037] The bar conveying roller mechanism is located between two adjacent moving guide rail platforms and is used to convey bars;

[0038] The flaw detection device includes a linear module assembly 3 and a flaw detection assembly. The flaw detection assembly is mounted on the linear module assembly 3. The linear module assembly 3 is used to drive the flaw detection assembly to reciprocate along the second direction to perform flaw detection on different positions of the bar.

[0039] In the embodiment, when the bar is detected, first, the guide rail platform is moved to the clamping station close to the bar carrying table, at this time, the bar to be detected on the clamping station is located between the two movable clamping structures, and the bar on the clamping station falls on the carrying wheel mechanism, then the two movable clamping structures cooperate to clamp the two ends of the bar to be detected, and the rotating drive mechanism drives the bar to be detected between the two movable clamping structures to rotate around its own axis. Then, the guide rail platform drives the bar to be detected to move towards the detection device, until it moves to the detection station, at this time, the bar to be detected is still rotating around its axis, the linear module assembly 3 drives the detection assembly to move back and forth along the second direction to detect different positions of the bar to be detected, after the detection is completed, the guide rail platform moves towards the bar carrying table by a fixed distance, so that the bar moves to the upper side of the bar conveying roller mechanism, then the rotating drive mechanism stops working and the two movable clamping structures release the bar, the bar falls on the bar conveying roller mechanism, and the bar conveying roller mechanism conveys the bar after detection to the next process. Then, the guide rail platform continues to move towards the bar carrying table until it moves to the clamping station again, waiting for the next detection work.

[0040] Compared with the existing spin type bar detection machine, the bar detection device has at least the following advantages:

[0041] First, the bar feeding mechanism and the bar rotating roller system are integrated together, the system integration is higher, and the bar rotating roller system does not need to be set again, saving the cost.

[0042] Second, the whole feeding and discharging time is shorter, so as to improve the detection efficiency and save the detection time.

[0043] In the embodiment, the first direction is from the bar carrying table to the detection device, and the second direction is the length direction of the detection device, or the moving direction of the detection assembly.

[0044] As a preferred embodiment, as shown in Figure 1 The moving guide rail platform, the bar carrying table and the detection device are all arranged on the upper surface of the base 1. The moving guide rail platform is provided with three, the three moving guide rail platforms are arranged in sequence from left to right, the detection device is located in front of the three moving guide rail platforms, and the bar conveying roller mechanism is provided with a plurality of, at least two bar conveying roller mechanisms are arranged between the spaces between adjacent two moving guide rail platforms.

[0045] Further, the mobile guide rail platform comprises a bearing seat, industrial guide rails, a sliding table and an electric push rod, wherein the bearing seat is arranged on the base 1, the industrial guide rails are provided in two, the two industrial guide rails are arranged on the bearing seat and are perpendicular to the flaw detection device, at least one sliding block is slidingly arranged on each of the two industrial guide rails, the sliding table is fixedly arranged on the sliding blocks of the industrial guide rails, and the electric push rod is arranged on the back of the bearing seat, the shell of the electric push rod is fixedly arranged on the bearing seat, and the rod end of the electric push rod is fixedly connected with the sliding table.

[0046] When the electric push rod is extended, the electric push rod pushes the sliding table to move along the industrial guide rails towards the flaw detection device, and when the electric push rod is shortened, the electric push rod pulls the sliding table to move along the industrial guide rails away from the flaw detection device.

[0047] It should be noted that two limit switches are arranged on the industrial guide rails, which are respectively a first limit switch and a second limit switch. When the electric push rod pulls the sliding table to move along the industrial guide rails away from the flaw detection device to the clamping station, the first limit switch sends a signal to the control box 2, indicating that the sliding table has reached the first limit position, and the control box 2 controls the electric push rod to stop working in preparation for clamping the bar on the bar carrying table. When the electric push rod pushes the sliding table to move along the industrial guide rails towards the flaw detection device to the flaw detection station, the second limit switch sends a signal to the control box 2, indicating that the sliding table has reached the second limit position, and the control box 2 controls the electric push rod to stop working in preparation for flaw detection work.

[0048] Preferably, considering that if only two mobile clamping structures are used to suspend and clamp the bar, the load on the mobile clamping structure is too large, therefore, at least one set of bearing wheel mechanism is arranged on the table top of the sliding table of each of the three mobile guide rail platforms, such as Figure 4 As shown in the figure, the bearing wheel mechanism comprises two guide wheel members arranged along the moving direction of the sliding table, the guide wheel member comprises a door-shaped frame 14, a roller 15 and an axle 16, the two door-shaped frames 14 are arranged upside down on the table top of the sliding table, the axle 16 is arranged on the top of the door-shaped frame 14, the axis direction of the axle 16 is the same as the axis direction of the bar, and at least one roller 15 is rotatably arranged on the axle 16. The bar is carried by the bearing wheel mechanism, and the weight of the bar is borne by the bearing wheel mechanism, so that the two mobile clamping structures only need to cooperate to clamp the bar and do not need to bear the weight of the bar. When the bar rotates, the bar drives the roller 15 to rotate together, and the friction between the bar and the roller 15 is rolling friction, and the friction is small.

[0049] Illustratively, two bearings are coaxially arranged on the axle 16, the outer ring of the bearing is sleeved with a roller 15, that is, two rollers 15 are rotatably arranged on each axle 16. The bar is placed between the rollers 15 of the two guide wheel members.

[0050] In this embodiment, for the convenience of description, the Figure 1The leftmost moving guide rail platform is named as the first moving guide rail platform, the middle moving guide rail platform is named as the second moving guide rail platform, and the rightmost moving guide rail platform is named as the third moving guide rail platform.

[0051] As shown in Figure 1 , one moving clamping structure is installed on the sliding table of the first moving guide rail platform, and another moving clamping structure is installed on the sliding table of the second moving guide rail platform. For the convenience of distinction, the left moving clamping structure is named as the first moving clamping structure, and the right moving clamping structure is named as the second moving clamping structure. As shown in Figure 2 , the first moving clamping structure comprises a first guide rail 903, a first sliding block 904, a first fixed seat 905, a first cylinder 906 and a first sleeve 907. The first guide rail 903 is fixedly installed on the sliding table of the first moving guide rail platform, and the first guide rail 903 is arranged along the left-right direction. The first sliding block 904 is slidingly installed on the first guide rail 903. The first fixed seat 905 is in the shape of an L-shaped plate, which has a bottom plate and a vertical plate connected together. The bottom plate is fixedly installed on the first sliding block 904. The first sleeve 907 is rotatably installed on the right side surface of the vertical plate. A first fixed plate is arranged on the left side of the first guide rail 903, and the first fixed plate is fixedly installed on the sliding table of the first moving guide rail platform. The first cylinder 906 is fixedly installed on the first fixed plate, and the cylinder end of the first cylinder 906 is fixedly connected with the left end surface of the first fixed seat 905.

[0052] It should be noted that the first sleeve 907 is in the shape of a cylinder, and the inner diameter of the first sleeve 907 is greater than the outer diameter of the bar, so that the end of the bar can extend into the first sleeve 907.

[0053] Further, a rotary driving mechanism is installed on the sliding table of the first moving guide rail platform. The rotary driving mechanism comprises a second motor 902, a speed reducer 910, a driving pulley, a driven pulley 908 and a transmission belt 909. The driven pulley 908 is sleeved on the first sleeve 907. The driving pulley is installed on the output end of the speed reducer 910. The driving pulley and the driven pulley 908 are drivingly connected through the transmission belt 909. The output end of the second motor 902 is connected with the input end of the speed reducer 910. The second motor 902 provides power to drive the driving pulley to rotate. The driving pulley drives the driven pulley 908 to rotate through the transmission belt 909, and finally drives the first sleeve 907 to rotate.

[0054] In the embodiment, as shown in Figure 3As shown, the second mobile clamping structure includes a second guide rail 133, a second sliding block 134, a second air cylinder 135, a second fixed seat 136, a second fixed plate 132, and a second sleeve 137. The second guide rail 133 is installed on the sliding table of the third mobile guide rail platform, the second sliding block 134 is slidingly installed on the second guide rail 133, the bottom plate of the second fixed seat 136 is fixedly installed on the second sliding block 134, the second sleeve 137 is rotatably installed on the vertical plate of the second fixed seat 136, the second fixed plate 132 is located on the right side of the second guide rail 133 and is fixed to the sliding table of the third mobile guide rail platform, and the second air cylinder 135 is fixedly installed on the second fixed plate 132, and the cylinder end of the second air cylinder 135 is fixed to the right side of the second fixed seat 136.

[0055] The control box 2 controls the three electric push rods of the mobile guide rail platforms to be shortened at the same time to pull the three sliding tables to move towards the bar material loading platform at the same time until they move to the clamping position, at which time the bar material at the clamping position is just located between the first sleeve 907 and the second sleeve 137. Then the control box 2 controls the first air cylinder 906 and the second air cylinder 135 to work at the same time, and the first air cylinder 906 and the second air cylinder 135 are elongated by a fixed distance to make the first sleeve 907 and the second sleeve 137 close to each other, so as to clamp the two ends of the bar material, and the two ends of the bar material are tightly attached to the inner walls of the first sleeve 907 and the second sleeve 137, respectively. Then the control box 2 controls the second motor 902 to work, and the second motor 902 drives the speed reducer 910 to drive the driving pulley to rotate, the driving pulley drives the driven pulley 908 to rotate through the transmission belt 909, and finally drives the first sleeve 907 to rotate. In this way, the bar material rotates with the rotation of the first sleeve 907, and during flaw detection, the bar material rotates around its own axis without stopping, so as to facilitate the flaw detection device to detect flaws, and the bar material rotating roller system is not needed, thereby saving cost and facilitating loading and unloading.

[0056] In the embodiment, the first mobile guide rail platform includes a first bearing seat 8, a first industrial guide rail 801, a first sliding table 9, and a first electric push rod, and the first bearing wheel mechanism 901 for supporting the bar material is arranged on the table top of the first sliding table 9. The second mobile guide rail platform includes a second bearing seat 10, a second industrial guide rail 101, a second sliding table 11, and a second electric push rod, and the second bearing wheel mechanism 111 is arranged on the table top of the second sliding table 11. The third mobile guide rail platform includes a third bearing seat 12, a third industrial guide rail 121, a third sliding table 13, and a third electric push rod, and the third bearing wheel mechanism 131 is arranged on the table top of the third sliding table 13.

[0057] It should be noted that the second motor 902, the first air cylinder 906, the second air cylinder 135, the first electric push rod, the second electric push rod, and the third electric push rod are respectively connected to the control box 2 in signal connection, and the above components are controlled by the control box 2 to run, so as to realize automatic material taking and unloading.

[0058] For example, such as Figure 1 As shown, the linear module assembly 3 includes a long, narrow support box, a toothed plate 301, a gear, a traveling plate, and a traveling motor 4. The toothed plate 301 is installed inside the support box, and the traveling plate is slidably mounted on the top of the support box. The gear meshes with the toothed plate 301. The traveling motor 4 is mounted on the top of the traveling plate, and its output end is connected to the gear. A mounting bracket 5 is installed on the traveling plate, and a flaw detection component is located at the bottom of the mounting bracket 5. The traveling motor 4 drives the gear to rotate. Because the gear meshes with the toothed plate 301, the traveling plate moves along the length of the toothed plate 301, i.e., moves left and right, ultimately driving the flaw detection component to reciprocate and perform flaw detection on the continuously rotating bar.

[0059] It should be noted that the flaw detection components are either ultrasonic flaw detection components or electromagnetic induction flaw detection components. Ultrasonic flaw detectors emit ultrasonic pulses through a probe. When these pulses propagate inside the bar, they are reflected and refracted when they encounter defects or interfaces between different media. The probe receives the reflected ultrasonic signals and converts them into electrical signals, which are then processed and analyzed by a computer to determine the presence, location, size, and nature of defects inside the bar. Electromagnetic induction flaw detectors generate an alternating magnetic field by exciting a probe coil. When the probe approaches the surface of the bar, an induced current is generated on the surface. As these eddy currents propagate inside the bar, they change when they encounter defects or interfaces between different media. These changes are reflected back to the probe coil, altering the magnitude and phase of the coil current. By measuring the change in coil current, the presence of defects on the surface or inside the bar can be determined.

[0060] Furthermore, the bar conveying roller mechanism (not shown in the figure) includes a support frame, multiple sets of drive rollers on the support frame, and a transmission device. The multiple sets of drive rollers are arranged sequentially along the length of the support frame, and are connected to each other via a chain drive device. It should be noted that the bar conveying roller mechanism is a commonly used device for conveying bars in this technical field; for example, it is used in forward-moving bar flaw detectors as a bar conveying equipment.

[0061] In this embodiment, a bar conveying roller mechanism is arranged between the first and second moving guide rail platforms, a bar conveying roller mechanism is arranged between the second and third moving guide rail platforms, and a bar conveying roller mechanism is arranged on the right side of the third moving guide rail platform. These three bar conveying roller mechanisms are arranged sequentially. Furthermore, the height of these bar conveying roller mechanisms is lower than the height of the three sliding platforms to ensure that the bar conveying roller mechanisms do not obstruct the bar when it moves back and forth.

[0062] As an optional embodiment, the rod carrying table comprises a first carrying plate 6 and a second carrying plate 7 vertically installed on the base 1, and the rods are sequentially arranged on the top of the first carrying plate 6 and the second carrying plate 7. A stopper is arranged at the end of the first carrying plate 6 and the second carrying plate 7 close to the flaw detection device, and the stopper is used to stop the rods and prevent the rods from continuing to advance.

[0063] It should be noted that when the rod flaw detector is preparing, the rods can be placed on the first carrying plate 6 and the second carrying plate 7 by manual or gantry robot, and the rods are ensured to be close to each other. After the rod at the clamping station is removed, the next rod is moved to the clamping station by manual or gantry robot, and the above steps are sequentially repeated until all the rods on the rod carrying table are completely detected.

[0064] As another optional embodiment, the rods are loaded by moving the guide rail platform one step backward after one rod is removed.

[0065] Now a working step of the rod flaw detector will be described in detail.

[0066] In the initial state, the three sliding tables are located at the clamping station, the rod to be detected is conveyed to the clamping station by the roller conveyor, then the control box 2 controls the first cylinder 906 and the second cylinder 135 to work at the same time, the first cylinder 906 and the second cylinder 135 are elongated by a fixed distance to make the first sleeve 907 and the second sleeve 137 close to each other, so as to clamp the two ends of the rod, and the two ends of the rod are tightly attached to the inner walls of the first sleeve 907 and the second sleeve 137 respectively. Then the control box 2 controls the second motor 902 to work, the second motor 902 drives the speed reducer 910 to drive the driving pulley to rotate, the driving pulley drives the driven pulley 908 and the first sleeve 907 to rotate through the transmission belt 909, so as to make the rod rotate around its own axis. Then the control box 2 controls the three electric push rods of the three moving guide rail platforms to elongate by a fixed length at the same time, so that the three sliding tables move towards the flaw detection device at the same time until they move to the flaw detection station. Then the walking motor 4 drives the gear to rotate, driving the flaw detection assembly to reciprocate and detect the rod rotating continuously. After the detection is completed, the control box 2 controls the three electric push rods of the three moving guide rail platforms to shorten by a fixed length at the same time, so as to pull the three moving guide rail platforms to retreat to the unloading station. At this time, the rod after detection stays directly above the rod conveying roller mechanism. Then the control box 2 controls the second motor 902 to stop working, and controls the first cylinder 906 and the second cylinder 135 to shorten to release the rod, so that the rod falls on the rod conveying roller mechanism and is conveyed to the next process.

[0067] In the description of the utility model, it is necessary to explain, the direction or position relation that the term "upper", "lower" and the like indicate is based on the direction or position relation shown in the drawing, is only for the convenience of describing the utility model and simplifying the description, and is not indicate or imply that the device or element indicated must have a particular orientation, is constructed and operated with a particular orientation, therefore can not be understood as the limitation of the utility model. In addition, the term "first", "second" is only for the purpose of description, and can not be understood as indicating or implying relative importance.

[0068] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "communication", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be direct communication, also can be indirectly communicated through the intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances. In addition, in the description of the utility model, unless otherwise stated, the meaning of "multiple" is two or more than two.

[0069] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A bar flaw detection apparatus characterized by comprising: Including the bar carrying platform, the bar taking device, the bar conveying roller mechanism and the flaw detection device;The bar carrying platform, the bar taking device and the flaw detection device are sequentially arranged along the first direction, and the bar is placed on the bar carrying platform along the second direction;Wherein, the bar taking device comprises: At least two moving guide rail platforms arranged along the second direction, two moving guide rail platforms are respectively located on both sides of the bar carrying platform, and the moving guide rail platform is provided with a carrying wheel mechanism for carrying the bar on the platform surface, and the moving guide rail platform can move along the first direction to drive the bar to approach or move away from the flaw detection device; The centering and clamping mechanism, the centering and clamping mechanism comprises two moving clamping structures, two moving clamping structures are respectively installed on two moving guide rail platforms, and two moving clamping structures are matched to clamp both ends of the bar; The rotating drive mechanism is installed on one of the moving guide rail platforms, which is used to drive the bar between the two moving clamping structures to rotate around its own axis; The bar conveying roller mechanism is arranged between the adjacent two moving guide rail platforms, which is used to convey the bar; The flaw detection device comprises a linear module assembly (3) and a flaw detection assembly, the flaw detection assembly is installed on the linear module assembly (3), and the linear module assembly (3) is used to drive the flaw detection assembly to move back and forth along the second direction to detect different positions of the bar.

2. A bar flaw detection apparatus according to claim 1, wherein The moving clamping structure comprises a guide rail mechanism, a cylinder, a fixed seat and a sleeve, the guide rail mechanism is arranged on the platform surface of the moving guide rail platform and extends along the second direction, the fixed seat is installed on the guide rail mechanism, the sleeve is rotatably installed on the fixed seat, and the sleeve extends along the second direction, one end of the cylinder is connected with the fixed seat, and the cylinder is used to drive the fixed seat to move along the second direction.

3. A bar flaw detection apparatus according to claim 2, wherein The guide rail mechanism comprises a guide rail and a sliding block, the sliding block is slidably installed on the guide rail, and the fixed seat is arranged on the sliding block.

4. A bar flaw detection apparatus according to claim 2, wherein The rotating drive mechanism comprises a second motor (902), a speed reducer (910), a driving pulley, a driven pulley (908) and a transmission belt (909), the driven pulley (908) is sleeved on the sleeve of the moving clamping structure, the driving pulley is installed on the output end of the speed reducer (910), the driving pulley and the driven pulley (908) are transmissionally connected through the transmission belt (909), and the output end of the second motor (902) is connected with the input end of the speed reducer (910).

5. The apparatus of claim 1 wherein, The moving guide rail platform is provided with three, three moving guide rail platforms are arranged along the second direction, and two moving clamping structures are respectively installed on two moving guide rail platforms on both sides.

6. A bar flaw detection apparatus according to claim 4, wherein The mobile guide rail platform comprises a bearing seat, an industrial guide rail, a sliding table and an electric push rod, the industrial guide rail is arranged on the bearing seat and extends along a first direction, the sliding table is installed on the industrial guide rail, one end of the electric push rod is connected with the sliding table and used for pushing the sliding table to move along the first direction, and the bearing wheel mechanism is installed on the top surface of the sliding table.

7. A device for inspecting a bar as defined in claim 6, characterized in that The bearing wheel mechanism comprises two guide wheel members arranged along the first direction, each guide wheel member comprises a door-shaped frame (14), a roller (15) and an axle (16), the door-shaped frame (14) is fixedly installed on the top surface of the sliding table, the axle (16) is installed on the door-shaped frame (14), and the roller (15) is installed on the axle (16) through a bearing.

8. The apparatus of claim 1 wherein, The linear module assembly (3) comprises a bearing box in the shape of a long strip, a toothed plate (301), a gear, a walking plate and a walking motor (4), the toothed plate (301) is installed in the bearing box, the walking plate is slidingly installed at the top opening of the bearing box, the gear is engaged with the toothed plate (301), the walking motor (4) is installed on the walking plate, and the output end of the walking motor (4) is connected with the gear.

9. A device for inspecting a bar as defined in claim 8, characterized in that The top of the walking plate is provided with a mounting frame (5), and the flaw detection assembly is installed on the mounting frame (5).

10. The apparatus of claim 4 wherein, The control box (2) is further provided, and the second motor (902) is signal connected with the control box (2).

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