Workpiece ultrasonic flaw detection equipment

Abstract

The invention relates to workpiece ultrasonic flaw detection equipment, and relates to the technical field of part flaw detection, the workpiece ultrasonic flaw detection equipment comprises a base, a suspension and a conveyor belt machine, the top of the base is provided with a detection probe, the top of the base is slidably provided with a mounting rack, and the base is also provided with a push-pull cylinder for driving the mounting rack to slide; an electric three-jaw chuck is rotationally arranged on the mounting frame; the suspension frame is provided with a feeding device, the feeding device comprises an electric sliding rail, a lifting air cylinder, a movable frame and a first electric clamping jaw, the electric sliding rail is horizontally fixed to the suspension frame, the lifting air cylinder is fixedly connected with the output end of the electric sliding rail, and the output end of the lifting air cylinder is fixedly connected with the movable frame; the first electric clamping jaw is fixedly connected with the bottom of the movable frame, and the first electric clamping jaw can grab the rod piece from the conveyor belt machine and convey the rod piece to the position between the clamping jaws of the electric three-jaw chuck. The automatic flaw detection device has the effects of realizing automatic flaw detection of the rod piece and improving the detection efficiency and accuracy.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of part flaw detection, and in particular to a workpiece ultrasonic flaw detection device. BACKGROUND

[0002] At present, metal workpiece surface damage detection technology is widely used in manufacturing, especially in the field of precision machining. With the improvement of industrial automation level, the demand for workpiece surface quality detection is increasing.

[0003] When the machining end of a shaft structure workpiece (hereinafter referred to as a rod) is detected, the traditional method relies on manual visual inspection, but visual inspection has the problems of low detection accuracy and low efficiency, so modern detection mainly uses an ultrasonic monitor for detection. However, during the detection process, manual detection of the rod is still required by holding the detection probe of the ultrasonic monitor, which wastes labor. The method of directly conveying the rod through the detection probe by using a conveyor belt machine is difficult to comprehensively check the surface of the machining end of the rod at all angles in the circumferential direction, and the checking result is not accurate. SUMMARY

[0004] In order to realize automatic flaw detection of the rod and improve the detection efficiency and accuracy, the application provides a workpiece ultrasonic flaw detection device.

[0005] The workpiece ultrasonic flaw detection device provided by the application adopts the following technical scheme: A workpiece ultrasonic flaw detection device, comprising a base, a suspension, and a conveyor belt machine, wherein the top of the base is provided with a detection probe, the top of the base is slidably provided with a mounting bracket, and the base is further provided with a push-pull cylinder for driving the mounting bracket to slide; the mounting bracket is rotatably provided with an electric three-jaw chuck, the rotation axis of the electric three-jaw chuck coincides with the central symmetry axis of all clamping jaws on the electric three-jaw chuck, the rotation axis of the electric three-jaw chuck is parallel to the sliding direction of the mounting bracket, and the rotation axis of the electric three-jaw chuck passes through the detection area of the detection probe; the mounting bracket is further provided with a torsion motor for driving the electric three-jaw chuck to rotate; the suspension is provided with a feeding device, the feeding device comprises an electric sliding rail, a lifting cylinder, a movable frame, and a first electric clamping jaw, the electric sliding rail is horizontally fixed on the suspension, the lifting cylinder is fixedly connected with the output end of the electric sliding rail, the output end of the lifting cylinder faces downward and is fixedly connected with the movable frame, and the first electric clamping jaw is fixedly connected with the bottom of the movable frame; the first electric clamping jaw can grab the rod from the conveyor belt machine and send the grabbed rod between the clamping jaws of the electric three-jaw chuck.

[0006] By adopting the technical scheme, when the processing end of the rod is detected, the conveying belt machine orderly conveys the rod close to the base. The electric slide rail first drives the lifting cylinder, the movable frame and the first electric clamping jaw to move in the horizontal direction and close to the conveying belt machine, until the first electric clamping jaw is moved to the upper side of the conveying belt machine, and then the lifting cylinder controls the first electric clamping jaw to move in the vertical direction, so that the first electric clamping jaw is close to and grabs a rod on the conveying belt machine. Then, the lifting cylinder reverses, the first electric clamping jaw with the rod is lifted, the electric slide rail drives the lifting cylinder, the movable frame and the first electric clamping jaw to move in the horizontal direction, so that the first electric clamping jaw is close to the electric three-jaw chuck, until the rod is aligned with the clamping jaws of the electric three-jaw chuck in the vertical direction. Then, the lifting cylinder controls the first electric clamping jaw to descend, and the rod is placed between the clamping jaws of the electric three-jaw chuck, and the electric three-jaw chuck closes the clamping jaws and clamps the rod. Then, the first electric clamping jaw releases the rod, the lifting cylinder makes the first electric clamping jaw return to the initial position, and is ready to grab the next rod. At the same time, the push-pull cylinder acts to drive the mounting frame with the electric three-jaw chuck and the rod to slide towards the detection probe, until the processing end of the rod enters the detection area of the detection probe. Then, the torsion motor starts to drive the electric three-jaw chuck to rotate, and then drives the rod to rotate around its own axis, and the detection probe comprehensively detects the surface of the rod at each angle in the circumferential direction of the processing end. After detection is completed, the push-pull cylinder reverses to drive the mounting frame to return to the initial position, and the electric three-jaw chuck releases the clamping jaws. The automatic detection of the rod is realized, and the detection efficiency and accuracy are improved.

[0007] Preferably, the base is provided with a receiving device on the side away from the conveying belt machine, the receiving device is used for classifying and receiving the rods according to the detection results, and the bottom of the movable frame is further fixedly provided with a second electric clamping jaw, which is located on the side of the first electric clamping jaw close to the receiving device. When the first electric clamping jaw grabs the rod from the conveying belt machine, the second electric clamping jaw grabs the rod from between the clamping jaws of the electric three-jaw chuck, and when the first electric clamping jaw sends the rod to between the clamping jaws of the electric three-jaw chuck, the second electric clamping jaw sends the rod to the receiving device.

[0008] By adopting the above technical scheme, when the first electric clamping jaw grabs the rod to be detected from the conveying belt machine, the second electric clamping jaw synchronously grabs the rod that has completed detection from between the clamping jaws of the electric three-jaw chuck. Subsequently, the electric sliding rail drives the lifting cylinder, the movable frame, the first electric clamping jaw and the second electric clamping jaw to move as a whole, when the first electric clamping jaw puts the rod to be detected into the clamping jaws of the electric three-jaw chuck, the second electric clamping jaw sends the detected rod to the storage device; the storage device classifies and processes the rods according to the detection results of the rods, and stores the qualified rods and the unqualified rods in different areas respectively. In the whole process, the first electric clamping jaw and the second electric clamping jaw work cooperatively, so that the feeding and discharging operations are synchronously performed, and the overall detection efficiency of the equipment is improved.

[0009] Preferably, the storage device comprises a placement table, a first storage box, a second storage box and a vertical frame. The vertical frame is vertically fixed on the top of the placement table. The first storage box and the second storage box are both placed on the placement table. The first storage box is located on one side of the vertical frame, and the second storage box is located on the other side of the vertical frame. A guide shaft is horizontally and rotatably arranged on the top of the vertical frame. A judgment motor is arranged on the vertical frame and used to drive the guide shaft to rotate. The judgment motor is electrically connected with the detection probe. A guide plate is fixedly arranged on the guide shaft and inclined towards the first storage box or the second storage box. The second electric clamping jaw can send the rod to the guide plate.

[0010] By adopting the above technical scheme, the judgment motor controls the guide shaft to rotate according to the detection result of the detection probe, and then drives the guide plate to be inclined towards the first storage box or the second storage box. After the second electric clamping jaw sends the detected rod above the guide plate, the second electric clamping jaw releases the rod. If the rod is detected to be qualified, the judgment motor drives the guide plate to be inclined towards the first storage box, and the rod slides to the first storage box under the action of gravity. If the rod is detected to be unqualified, the judgment motor drives the guide plate to be inclined towards the second storage box, and the rod slides to the second storage box.

[0011] Preferably, the conveying belt machine comprises a rack, a driving wheel, a driven wheel, a transmission belt and an intermittent motor. The driving wheel is rotatably connected with one end of the rack. The driven wheel is rotatably connected with the other end of the rack. The transmission belt is arranged in transmission between the driving wheel and the driven wheel. One end of the transmission belt is sleeved on the driving wheel, and the other end of the transmission belt is sleeved on the driven wheel. The intermittent motor is arranged on the rack and used to drive the driving wheel to rotate intermittently.

[0012] By adopting the technical scheme, the intermittent motor drives the driving wheel to rotate intermittently, and then drives the transmission belt to realize the function of intermittently conveying the rod piece. Before the first electric clamp jaw grabs the rod piece from the conveying belt, the intermittent motor controls the transmission belt to stop moving, so as to ensure that the rod piece is in a stationary state, and facilitate accurate grabbing by the first electric clamp jaw. After the first electric clamp jaw completes the grabbing action, the intermittent motor is started again.

[0013] As preferred, the transmission belt is uniformly and fixedly provided with a plurality of positioning blocks in the length direction. The positioning blocks are provided with positioning grooves, which are used for placing the rod pieces, and the bottom wall of the positioning groove is matched with the peripheral wall of the rod piece.

[0014] By adopting the technical scheme, the positioning blocks and the positioning grooves on the transmission belt provide accurate and stable placement positions for the rod pieces. When the rod piece is placed in the positioning groove, the rod piece can be closely fitted in the positioning groove due to the matching between the bottom wall of the positioning groove and the peripheral wall of the rod piece, thereby effectively preventing displacement due to vibration or shaking during the conveying of the transmission belt.

[0015] As preferred, the positioning blocks are provided with grabbing grooves, which can be used for the jaws of the first electric clamp jaw to extend into.

[0016] By adopting the technical scheme, the provision of the grabbing grooves provides accurate extension space for the jaws of the first electric clamp jaw, so that the jaws can directly contact the rod piece in the positioning groove, and interference between the jaws and the positioning blocks is avoided as much as possible.

[0017] As preferred, the two sides of the rack are slidably provided with sliding rods, the sliding rods penetrate the side walls of the rack and are perpendicular to the surface of the side walls of the rack, one end of the sliding rod on the inner side of the rack is fixedly provided with an axial positioning plate, one of the axial positioning plates can abut against one end of the rod piece, and the other axial positioning plate can abut against the other end of the rod piece, and the rack is provided with an opening and closing assembly for driving the sliding rod to slide.

[0018] By adopting the technical scheme, the opening and closing assembly drives the sliding rod to drive the axial positioning plates to move along the axial direction of the rod piece, one of the axial positioning plates abuts against one end of the rod piece, and the other axial positioning plate abuts against the other end of the rod piece, so as to adjust the position of the rod piece in the axial direction, so that the positions of all the rod pieces in the axial direction are consistent when they are grabbed by the first electric clamp jaw, the positions of all the rod pieces grabbed by the electric three-jaw chuck are consistent, and the alignment accuracy of the detection probe and the processing end of the rod piece is ensured.

[0019] As preferred, the opening and closing assembly comprises a pressing rod, a movable shaft, a power element, one end of the pressing rod is hingedly connected with the outer side wall of the rack, a movable slot is formed in the middle of the pressing rod along the length direction, the movable shaft is fixedly connected with the one end of the sliding rod on the outer side of the rack, the movable shaft is arranged in the movable slot and can slide along the opening direction of the movable slot, the power element is arranged at the other end of the pressing rod, and the power element is used to drive the other end of the pressing rod to be close to or away from the side wall of the rack.

[0020] By adopting the above technical scheme, when the power element drives the other end of the pressing rod to be close to the outer side wall of the rack, the pressing rod rotates around the hinge point with the outer side wall of the rack, since the movable shaft is arranged in the movable slot, in the rotating process of the pressing rod, the inner wall of the movable slot pushes the movable shaft to move, thereby driving the sliding rod to slide on the side wall of the rack, so that the axial positioning plate moves to the rod element direction and abuts against the rod element, and the axial positioning of the rod element is completed. When it is needed to loosen the rod element, the power element drives the other end of the pressing rod to be away from the outer side wall of the rack, the pressing rod reversely rotates, the sliding rod is reset, and the axial positioning plate loosens the rod element.

[0021] As preferred, the power element comprises a first guide wheel, a second guide wheel, a third guide wheel and a traction rope, the first guide wheel is rotatably connected with the outer side wall of the rack, the second guide wheel and the third guide wheel are rotatably connected with the suspension, one end of the traction rope is fixedly connected with the end of the pressing rod, and the other end of the traction rope is sequentially wound through the first guide wheel, the second guide wheel and the third guide wheel, and is fixedly connected with the output end of the electric sliding rail.

[0022] By adopting the above technical scheme, when the output end of the electric sliding rail moves, the traction rope is pulled, and due to the guiding effect of the first guide wheel, the second guide wheel and the third guide wheel, the traction rope can stably transmit the pulling force to the end of the pressing rod. The traction rope pulls the end of the pressing rod, drives the other end of the pressing rod to be close to the outer side wall of the rack (close to the first guide wheel), the pressing rod rotates around the hinge point with the outer side wall of the rack, thereby driving the sliding rod to slide on the side wall of the rack, and the axial positioning of the rod element is realized.

[0023] As preferred, the power element further comprises a reset spring, one end of the reset spring is fixedly connected with the outer side wall of the rack, and the other end of the reset spring is fixedly connected with the pressing rod, and the reset spring drives the pressing rod to be away from the outer side wall of the rack.

[0024] By adopting the above technical scheme, when the output end of the electric sliding rail reversely moves, the traction rope is relaxed, at this time, the reset spring plays a role, and the elastic potential energy of the reset spring drives the pressing rod to be away from the outer side wall of the rack, the pressing rod reversely rotates, the sliding rod is reset, and the axial positioning plate loosens the rod element, so as to prepare for the next axial positioning adjustment.

[0025] In summary, the present application has at least one of the following beneficial technical effects: 1. Through the setting of the base, the suspension, the conveyor, the detection probe, the mounting frame, the push-pull cylinder, the electric three-jaw chuck, the torsion motor, the electric slide rail, the lifting cylinder, the movable frame, and the first electric clamping jaw, the rod is conveyed from the conveyor to the feeding device for automatic grabbing and placing, and then the electric three-jaw chuck clamps the rod to cooperate with the torsion motor to rotate, so that the detection probe detects the machining end of the rod in all directions, reduces manual intervention, improves detection efficiency, avoids errors in manual detection, and ensures the accuracy of the detection results; 2. Through the setting of the second electric clamping jaw, the placement table, the first storage box, the second storage box, and the vertical frame, the second electric clamping jaw works cooperatively with the first electric clamping jaw to complete the unloading operation while ensuring the feeding efficiency, the guide plate direction is controlled according to the detection results, and the qualified and unqualified rods are sent into the corresponding storage boxes, thereby reducing the subsequent manual sorting steps and improving the overall production efficiency; 3. Through the setting of the sliding rod, the axial positioning plate, the pressing rod, the movable shaft, the first guide wheel, the second guide wheel, the third guide wheel, the traction rope, and the return spring, the electric slide rail and the traction rope are linked to control the action of the pressing rod, drive the sliding rod and the axial positioning plate to position and loosen the rod, and the return spring ensures that the structure can automatically reset, so that the position of each rod is uniform when it is grabbed and detected, the positioning accuracy of the detection probe and the machining end of the rod is improved, and the detection quality and stability are further improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic diagram of a workpiece ultrasonic flaw detection device provided in the embodiment of the present application.

[0027] Figure 2 is a schematic diagram of the base and the structure on the base in the embodiment of the present application.

[0028] Figure 3 is a schematic diagram of the suspension and the structure on the suspension in the embodiment of the present application.

[0029] Figure 4 is a structural schematic diagram of the receiving device in the embodiment of the present application.

[0030] Figure 5 is a structural schematic diagram of the conveyor in the embodiment of the present application.

[0031] Figure 6 is Figure 5 an enlarged view of part A in FIG.

[0032] Explanation of reference signs: 1, base; 11, detection probe; 12, mounting frame; 13, push-pull cylinder; 14, electric three-jaw chuck; 15, torsion motor; 2, suspension; 21, electric sliding rail; 22, lifting cylinder; 23, movable frame; 24, first electric clamping jaw; 25, second electric clamping jaw; 3, conveyor; 31, rack; 32, driving wheel; 33, driven wheel; 34, transmission belt; 35, intermittent motor; 36, positioning block; 361, positioning groove; 362, grabbing groove; 37, sliding rod; 38, axial positioning plate; 4, containing device; 41, placement table; 42, first storage box; 43, second storage box; 44, vertical frame; 45, guide shaft; 46, guide plate; 47, determination motor; 5, opening and closing assembly; 51, pressing rod; 511, movable groove; 52, movable shaft; 54, first guide wheel; 55, second guide wheel; 56, third guide wheel; 57, traction rope; 58, return spring. DETAILED DESCRIPTION

[0033] The following will be described in detail with reference to the accompanying drawings. Figures 1-6 The present application is further described in detail.

[0034] The present application discloses a workpiece ultrasonic flaw detection device. Referring to Figure 1 With Figure 2 It comprises a base 1, a suspension 2, a conveyor 3, and a containing device 4, all of which are installed on the ground. The top of the base 1 is provided with a detection probe 11, and the top of the base 1 is provided with a mounting frame 12 sliding in the horizontal direction. The base 1 is also provided with a push-pull cylinder 13 for driving the mounting frame 12 to slide. In this embodiment, the top of the base 1 is fixed with guide rails for guiding the sliding of the mounting frame 12, the push-pull cylinder 13 is fixedly connected with the base 1, and the output end of the push rod is fixedly connected with the mounting frame 12.

[0035] Referring to Figure 2 The mounting frame 12 is rotatably provided with an electric three-jaw chuck 14, the rotation axis of the electric three-jaw chuck 14 is horizontal, and coincides with the central symmetry axis of all clamping jaws on the electric three-jaw chuck 14, the rotation axis of the electric three-jaw chuck 14 is parallel to the sliding direction of the mounting frame 12, and the rotation axis of the electric three-jaw chuck 14 passes through the detection area of the detection probe 11. The mounting frame 12 is also provided with a torsion motor 15 for driving the electric three-jaw chuck 14 to rotate. In this embodiment, the torsion motor 15 is fixedly connected with the mounting frame 12, and the output end of the torsion motor 15 is coaxially fixed with the electric three-jaw chuck 14.

[0036] Referring to Figures 1 to 3, the upper loading device is arranged on the suspension 2, and the upper loading device comprises an electric sliding rail 21, a lifting cylinder 22, a movable frame 23 and a first electric clamping jaw 24. The electric sliding rail 21 is higher than the base 1, the conveyor 3 and the receiving device 4, is horizontally fixed on the suspension 2, and the output end of the lifting cylinder 22 is fixedly connected with the electric sliding rail 21. The output end of the lifting cylinder 22 faces downward and is fixedly connected with the movable frame 23. The first electric clamping jaw 24 is fixedly connected with the bottom of the movable frame 23. The first electric clamping jaw 24 can grab the rod from the conveyor 3 and send the grabbed rod to the clamping jaws of the electric three-jaw chuck 14. In the embodiment, the conveyor 3 has a fixed grabbing position, the conveyor 3 intermittently and orderly sends the rod to the grabbing position, and the first electric clamping jaw 24 grabs the rod from the grabbing position.

[0037] With reference to Figures 1 to 4 , the receiving device 4 is located on the side, away from the conveyor 3, of the base 1, and is used for classifying the rods according to the detection result and receiving the rods. The bottom of the movable frame 23 is further fixedly provided with a second electric clamping jaw 25, and the second electric clamping jaw 25 is located on the side, close to the receiving device 4, of the first electric clamping jaw 24. The distance between the first electric clamping jaw 24 and the second electric clamping jaw 25, the distance between the grabbing position of the conveyor 3 and the rotating axis of the three-jaw chuck, and the distance between the rotating axis of the three-jaw chuck and the receiving device 4 are equal. When the first electric clamping jaw 24 grabs the rod from the conveyor 3, the second electric clamping jaw 25 grabs the rod from between the clamping jaws of the electric three-jaw chuck 14. When the first electric clamping jaw 24 sends the rod to between the clamping jaws of the electric three-jaw chuck 14, the second electric clamping jaw 25 sends the rod to the receiving device 4.

[0038] With reference to Figure 2 , and Figure 4 Specifically, the receiving device 4 comprises a placing table 41, a first storage box 42, a second storage box 43 and a vertical frame 44. The vertical frame 44 is vertically fixed on the top of the placing table 41, the first storage box 42 and the second storage box 43 are both placed on the placing table 41, the first storage box 42 is located on one side of the vertical frame 44, and the second storage box 43 is located on the other side of the vertical frame 44. The vertical frame 44 is horizontally and rotationally provided with a guide shaft 45, and the vertical frame 44 is provided with a judgment motor 47 for driving the guide shaft 45 to rotate. In the embodiment, the judgment motor 47 is fixedly connected with the vertical frame 44, the driving shaft of the judgment motor 47 is coaxially fixed with the guide shaft 45, and the judgment motor 47 is electrically connected with the detection probe 11. The guide shaft 45 is fixedly provided with a guide plate 46, the guide plate 46 is inclined toward the first storage box 42 or the second storage box 43, and the second electric clamping jaw 25 can send the rod to the guide plate 46.

[0039] In order to realize the orderly delivery of the rods, with reference to Figure 3 , and Figure 5The conveying belt machine 3 comprises a rack 31, a driving wheel 32, a driven wheel 33, a transmission belt 34 and an intermittent motor 35. The driving wheel 32 is rotationally connected to one end of the rack 31, the driven wheel 33 is rotationally connected to the other end of the rack 31, and the transmission belt 34 is arranged in transmission between the driving wheel 32 and the driven wheel 33. One end of the transmission belt 34 is sleeved on the driving wheel 32, the other end of the transmission belt 34 is sleeved on the driven wheel 33, the intermittent motor 35 is arranged on the rack 31, the driving shaft of the intermittent motor 35 is coaxially fixed with the driving wheel 32, and the intermittent motor 35 is used for driving the driving wheel 32 to rotate intermittently. The transmission belt 34 is uniformly and fixedly provided with a plurality of positioning blocks 36 along the length direction. The positioning block 36 is provided with a positioning groove 361, the positioning groove 361 is used for placing the rod, and the bottom wall of the positioning groove 361 is matched with the peripheral wall of the rod. The positioning block 36 is provided with a grabbing groove 362, and the grabbing groove 362 is used for the first electric clamping jaw 24 to extend into.

[0040] In order to improve the positioning accuracy of the rod in the axial direction, with reference to Figure 3 and Figure 5 , the rack 31 is symmetrically and slidably provided with a sliding rod 37, the sliding rod 37 penetrates the side wall of the rack 31 and is perpendicular to the surface of the side wall of the rack 31, and one end of the sliding rod 37 is fixedly provided with an axial positioning plate 38 on the inner side of the rack 31, one of the axial positioning plates 38 can abut against one end of the rod, and the other axial positioning plate 38 can abut against the other end of the rod.

[0041] With reference to Figure 3 , Figure 5 and Figure 6 , the rack 31 is provided with an opening and closing assembly 5 for driving the sliding rod 37 to slide. Specifically, the opening and closing assembly 5 comprises a pressing rod 51, a movable shaft 52 and a power member. One end of the pressing rod 51 is hingedly connected to the outer side wall of the rack 31, a movable groove 511 is formed in the middle of the pressing rod 51 along the length direction, the movable shaft 52 is fixedly connected to one end of the sliding rod 37 on the outer side of the rack 31, the movable shaft 52 is arranged in the movable groove 511 and can slide along the opening direction of the movable groove 511. The power member is arranged at the other end of the pressing rod 51, and the power member is used for driving the other end of the pressing rod 51 to approach or move away from the side wall of the rack 31.

[0042] With reference to Figure 3 , Figure 5 and Figure 6The power component includes a first guide wheel 54, a second guide wheel 55, a third guide wheel 56, a traction rope 57, and a return spring 58. The first guide wheel 54 is rotationally connected to the outer side wall of the frame 31. Specifically, a wheel frame is fixedly arranged on the side wall of the frame 31, and the first guide wheel 54 is rotationally arranged on the wheel frame with the axis vertical. The second guide wheel 55 and the third guide wheel 56 are both rotationally connected to the suspension frame 2. Specifically, the second guide wheel 55 and the third guide wheel 56 are rotationally connected to the suspension frame 2 through a rotating shaft perpendicular to the side wall of the suspension frame 2. The second guide wheel 55 is flush with the first guide wheel 54 in the vertical direction, and the third guide wheel 56 is located above the second guide wheel 55 and flush with the output end of the electric slide rail 21 in the vertical direction. One end of the traction rope 57 is fixedly connected to the end of the pressing rod 51, and the other end of the traction rope 57 is sequentially wound around the first guide wheel 54, the second guide wheel 55, and the third guide wheel 56 and fixedly connected to the output end of the electric slide rail 21. One end of the return spring 58 is fixedly connected to the outer side wall of the frame 31, and the other end of the return spring 58 is fixedly connected to the pressing rod 51. The return spring 58 drives the pressing rod 51 to move away from the outer side wall of the frame 31.

[0043] In addition, the push-pull air cylinder 13, the electric three-jaw chuck 14, the torsion motor 15, the electric slide rail 21, the lifting air cylinder 22, the first electric clamping jaw 24, the second electric clamping jaw 25, and the intermittent motor 35 are all electrically connected to the processor. The processor can be a PLC controller, which is used to control the push-pull air cylinder 13, the electric three-jaw chuck 14, the torsion motor 15, the electric slide rail 21, the lifting air cylinder 22, the first electric clamping jaw 24, the second electric clamping jaw 25, and the intermittent motor 35 to sequentially act. The determination motor 47 and the detection probe 11 are also electrically connected to the processor. The processor determines whether the detected rod member is qualified according to the detection result of the detection probe 11 and controls the rotation of the guide shaft based on the determination. All the air cylinders, motors, electric slide rails 21, electric clamping jaws, and electric three-jaw chucks 14 are conventional means in the field, and thus will not be described in detail.

[0044] The implementation principle of the workpiece ultrasonic flaw detection equipment according to the embodiment is as follows. First, the electric slide rail 21 drives the lifting air cylinder 22, the movable frame 23, the first electric clamping jaw 24, and the second electric clamping jaw 25 to move horizontally and approach the conveyor 3. The first electric clamping jaw 24 is located above the grabbing position of the conveyor 3, and the second electric clamping jaw 25 is located above the rotation axis of the electric three-jaw chuck 14. Then, the lifting air cylinder 22 drives the movable frame 23 to descend, the first electric clamping jaw 24 clamps the rod member on the grabbing position, and the second electric clamping jaw 25 clamps the rod member that has been detected by the detection probe 11. At the same time, the processor makes a final determination based on the detection data of the detection probe 11. If the detected rod member is qualified, the determination motor 47 drives the guide shaft 45 to rotate, so that the guide plate 46 is inclined to face the first storage box 42. If the detected rod member is unqualified, the guide plate 46 is inclined to face the second storage box 43.

[0045] Subsequently, the lifting cylinder 22 drives the output end to move upwards, in the process, the conveyor 3 is driven by the intermittent motor 35 to drive the transmission belt 34 to move a distance equivalent to the distance between the positioning blocks 36, so as to transport the subsequent rod to the grabbing position for replenishment, and the positioning blocks 36 on the transmission belt 34 and the positioning grooves 361 ensure the stable placement of the rod. Then, the electric slide rail 21 drives the first electric clamp jaw 24 and the second electric clamp jaw 25 to move away from the conveyor 3 as a whole, so that the first electric clamp jaw 24 is located above the rotation axis of the electric three-jaw chuck 14, and the second electric clamp jaw 25 is located above the guide plate. In the process, the opening and closing assembly 5 on both sides of the rack 31 acts: one end of the traction rope 57 moves with the output end of the electric slide rail 21, so that the non-hinged end of the pressing rod 51 approaches the first guide wheel 54, the pressing rod 51 drives the sliding shaft and the axial positioning plate 38 to push the two ends of the rod, so as to ensure the axial positioning of the rod.

[0046] Then, the lifting cylinder 22 drives the output end to move downwards again, the first electric clamp jaw 24 places the rod to be detected between the clamps of the electric three-jaw chuck 14, the electric three-jaw chuck 14 is closed and clamped, and the second electric clamp jaw 25 sends the detected rod to the guide plate 46 of the storage device 4. The rod rolls into the first storage box 42 or the second storage box 43 along the inclined direction of the guide plate 46. Then, the lifting cylinder 22 drives the output end to move upwards again, at the same time, the push-pull cylinder 13 drives the mounting frame 12, so that the rod clamped by the electric three-jaw chuck 14 moves to the detection area of the detection probe 11, the torsion motor 15 drives the electric three-jaw chuck 14 to rotate the rod, the detection probe 11 performs omnidirectional ultrasonic flaw detection on the machined end of the rod, and the detection data is transmitted to the processor for analysis and judgment. Finally, after the detection is completed, the push-pull cylinder 13 is reset in the reverse direction, waiting for the first electric clamp jaw 24 to send a new rod and the second electric clamp jaw 25 to grab the detected rod, and entering the cycle. It should be noted that, in the process of moving the lifting cylinder 22, the movable frame 23, the first electric clamp jaw 24 and the second electric clamp jaw 25 horizontally close to the conveyor 3 driven by the electric slide rail 21, the output end of the electric slide rail 21 releases the traction rope 57, the reset spring 58 drives the pressing rod 51 to reset, and then drives the axial positioning plate 38 to reset, so that the rod does not contact the axial positioning plate 38 when the first electric clamp jaw 24 grabs the rod. The automatic flaw detection of the rod is realized, and the detection efficiency and accuracy are improved.

[0047] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An ultrasonic flaw detection device for workpieces, characterized in that: The utility model provides a kind of rod detection device, including base (1), suspension (2), conveyer (3), the top of the base (1) is equipped with detection probe (11), the top of the base (1) is slidably provided with mounting bracket (12), the base (1) is also provided with push-pull cylinder (13) for driving mounting bracket (12) to slide;Rotary mounting bracket (12) is equipped with electric three-jaw chuck (14), the rotation axis of the electric three-jaw chuck (14) coincides with the central symmetry axis of all clamping jaws on electric three-jaw chuck (14), the rotation axis of the electric three-jaw chuck (14) is parallel with the sliding direction of mounting bracket (12), the rotation axis of the electric three-jaw chuck (14) passes through the detection area of detection probe (11), mounting bracket (12) is also provided with torsional motor (15) for driving electric three-jaw chuck (14) to rotate;Suspension (2) is provided with feeding device, and the feeding device includes electric slide rail (21), lifting cylinder (22), movable frame (23), first electric clamping jaw (24), electric slide rail (21) is horizontally fixed on suspension (2), lifting cylinder (22) is fixedly connected with the output end of electric slide rail (21), the output end of lifting cylinder (22) is downward, and is fixedly connected with movable frame (23), first electric clamping jaw (24) is fixedly connected with the bottom of movable frame (23), and first electric clamping jaw (24) can be grabbed from conveyer (3) and is sent to the clamping jaw between electric three-jaw chuck (14).

2. The apparatus according to claim 1, wherein: The side of the base (1) away from conveyer (3) is equipped with housing device (4), and the housing device (4) is used for classifying and housing rod according to detection result, and the bottom of movable frame (23) is also fixedly provided with second electric clamping jaw (25), and the second electric clamping jaw (25) is located on the side of first electric clamping jaw (24) close to housing device (4);When first electric clamping jaw (24) is grabbed from conveyer (3), second electric clamping jaw (25) is grabbed from the clamping jaw between electric three-jaw chuck (14), when first electric clamping jaw (24) is sent to the clamping jaw between electric three-jaw chuck (14), second electric clamping jaw (25) is sent to housing device (4).

3. The apparatus according to claim 2, wherein: The accommodation device (4) comprises a placing table (41), a first storage box (42), a second storage box (43), a vertical frame (44), a guide shaft (45), a guide plate (46), and a judgment motor (47). The vertical frame (44) is vertically fixed on the top of the placing table (41). The first storage box (42) and the second storage box (43) are both placed on the placing table (41). The first storage box (42) is located on one side of the vertical frame (44), and the second storage box (43) is located on the other side of the vertical frame (44). The guide shaft (45) is horizontally and rotatably arranged on the top of the vertical frame (44). The judgment motor (47) is used to drive the guide shaft (45) to rotate. The judgment motor (47) is electrically connected with the detection probe (11). The guide plate (46) is fixedly arranged on the guide shaft (45). The guide plate (46) is inclined towards the first storage box (42) or the second storage box (43). The second electric clamping jaw (25) can send the rod to the guide plate (46).

4. The apparatus according to claim 1, wherein: The conveyor belt machine (3) comprises a rack (31), a driving wheel (32), a driven wheel (33), a transmission belt (34), and an intermittent motor (35). The driving wheel (32) is rotatably connected with one end of the rack (31). The driven wheel (33) is rotatably connected with the other end of the rack (31). The transmission belt (34) is transmissionally arranged between the driving wheel (32) and the driven wheel (33). One end of the transmission belt (34) is sleeved on the driving wheel (32). The other end of the transmission belt (34) is sleeved on the driven wheel (33). The intermittent motor (35) is arranged on the rack (31). The intermittent motor (35) is used to drive the driving wheel (32) to rotate intermittently.

5. The apparatus according to claim 4, wherein: The transmission belt (34) is uniformly and fixedly provided with a plurality of positioning blocks (36) along the length direction. The positioning block (36) is provided with a positioning groove (361). The positioning groove (361) is used to place the rod. The bottom wall of the positioning groove (361) is matched with the peripheral wall of the rod.

6. The apparatus according to claim 5, wherein: The positioning block (36) is provided with a grabbing groove (362). The grabbing jaw of the first electric clamping jaw (24) can be inserted into the grabbing groove (362).

7. The apparatus according to claim 4, wherein: The rack (31) is slidably provided with a sliding rod (37) on both sides. The sliding rod (37) penetrates through the side wall of the rack (31) and is perpendicular to the surface of the side wall of the rack (31). An axial positioning plate (38) is fixedly arranged on one end of the sliding rod (37) inside the rack (31). One of the axial positioning plates (38) can abut against one end of the rod. The other axial positioning plate (38) can abut against the other end of the rod. The rack (31) is provided with an opening and closing assembly (5) used to drive the sliding rod (37) to slide.

8. The apparatus according to claim 7, wherein: The opening and closing assembly (5) comprises a pressing rod (51), a movable shaft (52) and a power element, one end of the pressing rod (51) is hingedly matched with the outer side wall of the frame (31), a movable groove (511) is formed in the middle of the pressing rod (51) along the length direction, the movable shaft (52) is fixedly connected with one end of the sliding rod (37) on the outer side of the frame (31), the movable shaft (52) is arranged in the movable groove (511) and can slide along the opening direction of the movable groove (511), the power element is arranged at the other end of the pressing rod (51), and the power element is used for driving the other end of the pressing rod (51) to be close to or away from the side wall of the frame (31).

9. The apparatus according to claim 8, wherein: The power element comprises a first guide wheel (54), a second guide wheel (55), a third guide wheel (56) and a traction rope (57), the first guide wheel (54) is rotationally connected with the outer side wall of the frame (31), the second guide wheel (55) and the third guide wheel (56) are both rotationally connected with the suspension (2), one end of the traction rope (57) is fixedly connected with the end of the pressing rod (51), the other end of the traction rope (57) is sequentially wound through the first guide wheel (54), the second guide wheel (55) and the third guide wheel (56) and is fixedly connected with the output end of the electric sliding rail (21).

10. The apparatus according to claim 9, wherein: The power element further comprises a reset spring (58), one end of the reset spring (58) is fixedly connected with the outer side wall of the frame (31), the other end of the reset spring (58) is fixedly connected with the pressing rod (51), and the reset spring (58) drives the pressing rod (51) to be away from the outer side wall of the frame (31).

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