A nondestructive testing device for parts

Abstract

The present invention provides a nondestructive testing device for parts, which belongs to the field of nondestructive testing technology, and includes a first transmission mechanism, a second transmission mechanism, a data acquisition system, a shunt system, a first detection system, a second detection system and a control system; the data acquisition system is installed on the first transmission mechanism, the shunt system is installed at the end of the first transmission mechanism, the first detection system and the second detection system are installed on two second transmission mechanisms respectively, the first detection system includes a first lifter, a screw rod, a first driver, two connecting rod mechanisms and a dual-channel probe, the upper end of the connecting rod mechanism is hinged with the first lifter, and the dual-channel probe is installed at the lower end of the connecting rod mechanism; the second detection system includes a second lifter, an eccentric wheel, a second driver, a slider, a third driver and a multi-channel probe. The nondestructive testing device for parts provided by the present invention reduces the work intensity of the staff and improves the detection work efficiency and detection accuracy.

Description

Technical Field

[0001] The invention belongs to the technical field of nondestructive testing, and more specifically, relates to a component nondestructive testing device. Background Art

[0002] The car gearbox is one of the most important parts in a car. Its internal parts work under high intensity and bear high loads when working. Especially for high-value car brands, the gearbox manufacturing cost is high and has a high recycling value.

[0003] The main detection methods currently used in remanufacturing and recycling generally rely on the workers' experience for judgment, or use traditional non-destructive testing technologies such as ultrasound, penetration and other methods for detection. However, traditional non-destructive testing methods are relatively complicated to use and require pre-treatment of parts. They are also unable to determine stress concentration and areas where the specimens are easily damaged and elastically failed. Therefore, the efficiency of parts recycling and detection operations in automobile gearboxes is poor, and the detection results are inaccurate. Summary of the invention

[0004] The purpose of the present invention is to provide a component non-destructive testing device to solve the technical problems in the prior art of poor operating efficiency and inaccurate testing results of components recovery in automobile gearboxes.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a component nondestructive testing device, including a first transmission mechanism, a second transmission mechanism, a data acquisition system, a flow distribution system, a first detection system, a second detection system and a control system;

[0006] There are two second conveying mechanisms, which are connected to the first conveying mechanism; the data acquisition system is installed on the first conveying mechanism and is used to collect component information on the first conveying mechanism;

[0007] The flow dividing system is installed at the end of the first conveying mechanism and is located between the two second conveying mechanisms; the flow dividing system includes a rotatably connected flow dividing plate for guiding the parts to move toward the second conveying mechanism;

[0008] The first detection system and the second detection system are respectively installed on the two second transmission mechanisms, and the first detection system and the second detection system use a magnetic memory detection method to detect shaft parts or gear parts;

[0009] The first detection system comprises a first lifter, a screw rod, a first driver, two connecting rod mechanisms and a dual-channel probe, wherein the first lifter is located above one of the second transmission mechanisms, the first driver is mounted on the first lifter, the screw rod is spirally connected to the first lifter, the two connecting rod mechanisms are respectively located on both sides of the screw rod, a screw nut is spirally connected to the screw rod, the upper end of the connecting rod mechanism is hinged to the first lifter, and the lower side is hinged to the nut, and the dual-channel probe is mounted on the lower end of the connecting rod mechanism;

[0010] The second detection system includes a second lifter, an eccentric wheel, a second driver, a slider, a third driver and a multi-channel probe. The second lifter is located above another second transmission mechanism. The eccentric wheel is rotatably connected to the lower end of the second lifter. The second driver is installed on the second lifter and connected to the eccentric wheel. The eccentric wheel is provided with a radially arranged slide groove, the slider is slidably connected to the slide groove, the third driver is connected to the slider, and the multi-channel probe is installed on the slider.

[0011] In a possible implementation, a first supporting plate is provided on the first lifter, the first driver is fixedly mounted on the first supporting plate, a long hole and a sleeve mounted above the long hole are opened on the first supporting plate, the screw rod passes through the sleeve and the long hole, and the upper end of the connecting rod mechanism passes through the long hole and is hinged to the sleeve.

[0012] In a possible implementation, a second supporting plate is provided on the second lifter, the second driver is fixedly mounted on the second supporting plate, a mounting groove is provided at the lower end of the second supporting plate, the eccentric wheel is mounted in the mounting groove, and the third driver is located in the mounting groove and fixed on the outer surface of the eccentric wheel.

[0013] In a possible implementation, the nut is further provided with a horizontal extension plate and an extrusion positioning piece, the horizontal extension plate is provided with a screw hole, the extrusion positioning piece is provided with an external thread section and is spirally installed in the screw hole for positioning components.

[0014] In a possible implementation, a limit system is provided on the first conveying mechanism and the second conveying mechanism, which is used to limit the position of parts on the first conveying mechanism and the second conveying mechanism. The limit system on the first conveying mechanism is located between the data acquisition system and the diversion system, and the limit system on the second conveying mechanism is located between the first detection system or the second detection system and the diversion system.

[0015] In a possible implementation, the limit system includes a limit frame, a linear drive and a limit plate. The limit frame is installed on both sides of the first conveying mechanism or the second conveying mechanism. There are two linear drives, which are respectively fixed on the limit frame, and the limit plates are respectively fixed on the free ends of the linear drives.

[0016] In a possible implementation, the data acquisition system includes a vertical plate, a top plate, a camera and a laser detection head. The vertical plate is fixed on one side of the first conveying mechanism, one end of the top plate is fixed to the upper end of the vertical plate and is located above the first conveying mechanism; the laser detection head is installed on the side of the vertical plate close to the first conveying mechanism, and the camera is installed at the lower end of the top plate.

[0017] In a possible implementation, the diversion system also includes a mounting seat, a transmission gear, a connecting rod and a transmission rack. The mounting seat is arranged between the two second transmission mechanisms, the transmission gear is rotatably connected to the mounting seat, the transmission rack is meshingly connected to the transmission gear, the lower end of the connecting rod is fixed to the upper end surface of the transmission gear, and the upper end extends upward; the diverter plate is fixed to the upper end of the connecting rod and is located on the first transmission mechanism.

[0018] In a possible implementation, a long plate is provided at the lower end of the sliding block, the length direction of the long plate is the same as the radial direction of the eccentric wheel, and the multi-channel probe is installed at the lower end of the long plate.

[0019] In a possible implementation manner, both the first lifter and the second lifter are provided with a marking probe.

[0020] The beneficial effects of the nondestructive testing device for parts provided by the present invention are as follows: compared with the prior art, the nondestructive testing device for parts provided by the present invention, when in use, places the parts on the first conveying mechanism and transports them forward, and when passing through the data acquisition system, the data acquisition system collects information such as the size and shape of the parts, and transmits the information to the control system; the control system starts the rotation of the diverter plate of the diverter system according to the type of parts, thereby moving the parts to the corresponding second conveying mechanism with the help of the diverter plate; for shaft parts that are moved to the bottom of the first detection system under the action of the first conveying mechanism, the first lifter is started so that the shaft parts can smoothly pass through the first detection system, and a dual-channel probe is used to perform flaw detection on the shaft parts, and the first drive is started at the same time. The device makes the nut move up and down along the screw rod, changes the lift-off value and detection angle between the dual-channel probe and the shaft components, and performs flaw detection again. For the gear components, they enter another second transmission mechanism under the manipulation of the diverter plate, and the second lifter is started so that the gear parts can smoothly pass through the second detection system and the lift-off value between the multi-channel probe and the gear components can be controlled. The multi-channel probe is used to perform flaw detection on the gear components, and at the same time, the second driver is started to drive the eccentric wheel and the multi-channel probe to rotate, so as to perform large-scale flaw detection on the gear components. According to the size of the gear components, the third driver can be started to control the slider to move along the slide slot, thereby changing the position of the multi-channel probe, and then flaw detection is performed on other positions of the gear components. In this way, shaft components are inspected with the help of multi-angle dual-channel detection probes, and the lifting value of the dual-channel probe is controlled by a connecting rod mechanism. Gear components are inspected with a multi-channel probe, and the position of the multi-channel probe is controlled by an eccentric wheel, a slider, etc., to achieve detection of components of different sizes. Therefore, the lift-off value of the dual-channel probe and the multi-channel probe when applying the magnetic memory detection technology can be accurately controlled and the detection signal can be monitored in real time, so as to quickly judge the stress concentration, hidden damage, and easily damaged positions of the components, reduce the workload of the staff, and improve the detection efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 A schematic diagram of the structure of a nondestructive testing device for parts provided by an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the structure of a data acquisition system provided by an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the structure of a limit system provided in an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of the structure of a first detection system provided by an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of the connection between the connecting rod mechanism and the screw rod provided in an embodiment of the present invention;

[0027] Figure 6 A schematic diagram of the structure of a second detection system provided by an embodiment of the present invention;

[0028] Figure 7 A schematic diagram of a partial structure of a second detection system provided by an embodiment of the present invention;

[0029] Figure 8 A schematic diagram of the structure of an eccentric wheel, a slider and a third driver provided in an embodiment of the present invention;

[0030] Fig. 9 A schematic diagram of the structure of a flow distribution system provided in an embodiment of the present invention.

[0031] Among them, the reference numerals in the figure are:

[0032] 1. First transmission mechanism; 2. Second transmission mechanism; 3. Data acquisition system; 31. Vertical plate; 32. Top plate; 33. Camera; 34. Laser detection head; 35. Bottom plate; 4. Diversion system; 41. Diversion plate; 42. Mounting seat; 43. Transmission gear; 44. Connecting rod; 45. Transmission rack; 5. First detection system; 51. First lifter; 52. Screw rod; 521. Screw nut; 53. First driver; 54. Connecting rod mechanism; 55. Dual-channel probe; 56. First bearing plate; 561. Long hole; 562. Sleeve; 57. Horizontal extension plate; 571, extrusion positioning member; 6, second detection system; 61, second lifter; 62, eccentric wheel; 621, slide; 63, second driver; 64, slider; 65, third driver; 66, multi-channel probe; 67, second bearing plate; 671, mounting groove; 68, long strip; 69, marking probe; 7, control system; 71, control chassis; 72, operation display screen; 8, limit system; 81, limit frame; 82, linear driver; 83, limit plate; 84, guide ramp; 9, fixing frame; 91, lead screw; 92, limit rod; 93, drive motor. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0035] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] See also Figures 1 to 9 The nondestructive testing device for parts provided by the present invention is now described. A nondestructive testing device for parts includes a first transmission mechanism 1, a second transmission mechanism 2, a data acquisition system 3, a flow distribution system 4, a first detection system 5, a second detection system 6 and a control system 7;

[0038] There are two second conveying mechanisms 2, which are connected to the first conveying mechanism 1; the data acquisition system 3 is installed on the first conveying mechanism 1, and is used to collect the parts information on the first conveying mechanism 1;

[0039] The flow dividing system 4 is installed at the end of the first conveying mechanism 1 and is located between the two second conveying mechanisms 2; the flow dividing system 4 includes a rotatably connected flow dividing plate 41 for guiding the parts to move toward the second conveying mechanism 2;

[0040] The first detection system 5 and the second detection system 6 are respectively installed on the two second transmission mechanisms 2, and the first detection system 5 and the second detection system 6 use a magnetic memory detection method to detect shaft parts or gear parts;

[0041] The first detection system 5 includes a first lifter 51, a screw rod 52, a first driver 53, two connecting rod mechanisms 54 and a dual-channel probe 55. The first lifter 51 is located above a second conveying mechanism 2. The first driver 53 is installed on the first lifter 51. The screw rod 52 is spirally connected to the first lifter 51. The two connecting rod mechanisms 54 are respectively located on both sides of the screw rod 52. The screw rod 52 is provided with a spirally connected nut 521. The upper end of the connecting rod mechanism 54 is hinged to the first lifter 51, and the lower side is hinged to the nut 521. The dual-channel probe 55 is installed at the lower end of the connecting rod mechanism 54.

[0042] The second detection system 6 includes a second lifter 61, an eccentric wheel 62, a second driver 63, a slider 64, a third driver 65 and a multi-channel probe 66. The second lifter 61 is located above another second conveying mechanism 2. The eccentric wheel 62 is rotatably connected to the lower end of the second lifter 61. The second driver 63 is installed on the second lifter 61 and is connected to the eccentric wheel 62. The eccentric wheel 62 is provided with a radially arranged slide groove 621. The slider 64 is slidably connected in the slide groove 621. The third driver 65 is connected to the slider 64. The multi-channel probe 66 is installed on the slider 64.

[0043] Compared with the prior art, the nondestructive testing device for parts provided by the present invention places the parts on the first conveying mechanism 1 and transports them forward when in use. When passing through the data acquisition system 3, the data acquisition system 3 collects information such as the size and shape of the parts, and transmits the information to the control system 7; the control system 7 starts the rotation of the diverter plate 41 of the diverter system 4 according to the type of parts, thereby moving the parts to the corresponding second conveying mechanism 2 with the help of the diverter plate 41; for shaft parts, they are moved to the bottom of the first detection system 5 under the action of the first conveying mechanism 1, the first lifter 51 is started so that the shaft parts can smoothly pass through the first detection system 5, and the dual-channel probe 55 is used to perform flaw detection on the shaft parts, and at the same time, the first driver 53 is started to make the nut 521 move up and down along the screw rod 52 , change the lifting value and detection angle between the dual-channel probe 55 and the shaft parts and perform flaw detection again, and for the gear parts, they enter another second conveying mechanism 2 under the manipulation of the diverter plate 41, start the second lifter 61 so that the gear parts can smoothly pass through the second detection system 6 and can control the lifting value of the multi-channel probe 66 and the gear parts, use the multi-channel probe 66 to perform flaw detection on the gear parts, and at the same time start the second driver 63 to drive the eccentric wheel 62 and the multi-channel probe 66 to rotate, so as to perform large-scale flaw detection on the gear parts, and according to the size of the gear parts, the third driver 65 can be started to control the slider 64 to move along the slide groove 621, thereby changing the position of the multi-channel probe 66, and then performing flaw detection on other positions of the gear parts. In this way, shaft components are inspected with the aid of a multi-angle dual-channel detection probe, and the lifting value of the dual-channel probe 55 is controlled by a connecting rod mechanism 54; gear components are inspected with a multi-channel probe 66, and the position of the multi-channel probe 66 is controlled by an eccentric wheel 62, a slider 64, etc., to achieve detection of components of different sizes. Therefore, the lifting values ​​of the dual-channel probe 55 and the multi-channel probe 66 when applying the magnetic memory detection technology can be accurately controlled and the detection signals can be monitored in real time, so that stress concentration, hidden damage, and easily damaged positions of components can be quickly judged, thereby reducing the workload of staff and improving detection efficiency and accuracy.

[0044] The magnetic memory detection method is a damage detection technology. It is a damage detection method for leakage magnetic signals of ferromagnetic materials. It is based on the magnetic memory effect and the principle of magnetic dipole model. The magnetic memory effect can be understood as follows: when a ferromagnetic component is subjected to external force, due to the effect of the earth's magnetic field and the piezomagnetic effect, the magnetic domain organization in the stress concentration area will reorient and produce magnetic poles, thereby reducing the magnetic permeability here and forming a leakage magnetic field on the metal surface. The tangential component of the leakage magnetic field intensity has a maximum value, while the normal component changes its sign and has a zero value point. This change in magnetic state still exists after the working load is eliminated, and the location of stress concentration is remembered. This is the so-called magnetic memory effect. By numerically integrating the magnetic dipole theoretical model, the normal magnetic signal and the tangential magnetic signal of the leakage magnetic field on the surface of the defect position in the stress concentration area can be quantified. By analyzing the leakage magnetic field on the surface of the defect leakage magnetic field and the internal situation of the part, damage detection for specific parts can be achieved.

[0045] The present invention adopts two data analysis methods. One is to analyze and process the image through the algorithm of the control system 7, extract the image features and classify the part categories; the other is the damage identification method of the magnetic memory signal. The two identification methods adopted by the present invention are the zero-crossing alarm of the leakage magnetic signal and the gradient threshold alarm of the magnetic signal. In the control system 7, the parts with zero-crossing phenomenon of the magnetic memory signal and the gradient exceeding the threshold are marked to realize the identification of the detected parts.

[0046] In magnetic memory detection technology, an important influencing factor is the lift-off value of the probe, that is, the distance between the probe and the part. Since the magnetic memory detection technology will be affected by other ferromagnetic parts during detection, the devices with mechanical structure functions used in the present invention are all made of aluminum alloy, and the first transmission mechanism 1 and the second transmission mechanism 2 are made of rubber to minimize the influence of external factors on the detection signal.

[0047] The first lifter 51 and the second lifter 61 have the same structure. The first lifter 51 includes a fixed frame 9, a screw 91, a limit rod 92, a first bearing plate 56 and a driving motor 93. The fixed frame 9 is installed on both sides of each second transmission mechanism 2. The screw 91 is vertically rotatably connected to the fixed frame 9. The limit rod 92 is located on one side of the screw 52. The first bearing plate 56 is provided with screw holes and through holes respectively connected to the screw 91 and the limit rod 92. The first driver 53 and the second driver 63 are both fixedly installed on the first bearing plate 56.

[0048] The first driver 53, the second driver 63 and the third driver 65 can all be cylinders, etc. The first conveying mechanism 1 is for continuous conveying, and the second conveying mechanism 2 is for intermittent conveying.

[0049] The control system 7 is electrically connected to the first transmission mechanism 1, the second transmission mechanism 2, the data acquisition system 3, the diversion system 4, the first detection system 5, and the second detection system 6 for easy control. The control system 7 includes a control chassis 71 and an operation display screen 72. The staff controls the components in the nondestructive testing device of the component through the operation display screen 72; it can also be automatically controlled according to the software. The control system 7 is provided with a magnetic memory detector for adapting to operations such as data acquisition and flaw detection of the component.

[0050] See also Figure 1 , Figure 4 and Figure 5 As a specific embodiment of the component nondestructive testing device provided by the present invention, a first lifting device 51 is provided with a first bearing plate 56, a first driver 53 is fixedly installed on the first bearing plate 56, a long hole 561 and a sleeve 562 installed above the long hole 561 are opened on the first bearing plate 56, the lead screw 52 passes through the sleeve 562 and the long hole 561, and the upper end of the connecting rod mechanism 54 passes through the long hole 561 and is hinged to the sleeve 562; the first lifting device 51 includes a mounting frame and a lead screw 91 transmission mechanism, the mounting frame is a U-shaped structure, the first bearing plate 56 is slidably installed on the mounting frame, and is spirally connected with the lead screw 91 of the lead screw 91 transmission mechanism, and the lead screw 91 transmission mechanism is started to control the up and down movement of the first bearing plate 56; and a long hole 561 is opened on the first bearing plate 56. The first bearing plate 56 is fixedly mounted with a sleeve 562, the inner wall of the sleeve 562 is provided with a threaded section, the screw rod 52 is spirally connected with the sleeve 562 and passes through the long hole 561; two connecting rod mechanisms 54 are respectively mounted on both sides of the screw rod 52, and the upper end is hinged with the outer wall of the sleeve 562, and the lower side is hinged with the nut 521, and the dual-channel probe 55 is mounted on the lower end of the connecting rod mechanism 54; the first driver 53 is started to control the screw rod 52 to rotate, thereby driving the nut 521 to move up and down, so that the connecting rod mechanism 54 moves, and the distance between the dual-channel probe 55 at the lower end of the connecting rod mechanism 54 and the shaft parts is adjusted. With the help of the long hole 561, the connecting rod mechanism 54 will not be hindered during the movement process, and the connecting rod mechanism 54 is set to include a plurality of connecting rods hinged in sequence, the upper connecting rod is hinged with the sleeve 562, and the middle part of the lower connecting rod is hinged with the nut 521.

[0051] See also Figure 1 , Figures 6 to 8As a specific embodiment of the nondestructive testing device for parts provided by the present invention, a second lifting device 61 is provided with a second bearing plate 67, a second driver 63 is fixedly mounted on the second bearing plate 67, a mounting groove 671 is provided at the lower end of the second bearing plate 67, an eccentric wheel 62 is mounted in the mounting groove 671, and a third driver 65 is located in the mounting groove 671 and fixed on the outer side of the eccentric wheel 62; the structure of the second lifting device 61 is the same as that of the first lifting device 51, a second lifting device 61 is provided with a second bearing plate 67, the second driver 63 is mounted on the second bearing plate 67, and a mounting groove 671 is provided at the lower end of the second bearing plate 67, the eccentric wheel 62 and the third driver 65 are both mounted in the mounting groove 671, a driving end of the second driver 63 passes through the second bearing plate 67 and is connected to the eccentric wheel 62, the third driver 65 is fixed on the outer side of the eccentric wheel 62, and a driving end is connected to the slider 64 in the slide groove 621. In this way, the second driver 63 , the eccentric wheel 62 , etc. can be stably supported and installed, and the thickness of the entire second supporting plate 67 will not be increased by means of the installation groove 671 , so that the gear components can be easily moved on the second transmission mechanism 2 .

[0052] See also Figure 4 and Figure 5 As a specific embodiment of the nondestructive testing device for parts provided by the present invention, a horizontal extension plate 57 and an extrusion positioning member 571 are also provided on the nut 521. The horizontal extension plate 57 is provided with a screw hole, and the extrusion positioning member 571 is provided with an external thread section, which is spirally installed in the screw hole for positioning the parts; a horizontal extension plate 57 is provided on the side of the nut 521, and a screw hole is opened on the horizontal extension plate 57. After the first driver 53 adjusts the position of the dual-channel probe 55 and the shaft parts with the help of the connecting rod mechanism 54, the extrusion positioning member 571 is controlled to rotate in the screw hole, so that the lower end of the extrusion positioning member 571 applies pressure on the shaft parts to ensure that the shaft parts are in a stable state and will not rotate at will.

[0053] See also Figure 1 and Figure 3As a specific embodiment of the component nondestructive testing device provided by the present invention, a limiting system 8 is provided on the first conveying mechanism 1 and the second conveying mechanism 2, which is used to limit the position of the component on the first conveying mechanism 1 and the second conveying mechanism 2. The limiting system 8 on the first conveying mechanism 1 is located between the data acquisition system 3 and the diversion system 4, and the limiting system 8 on the second conveying mechanism 2 is located between the first detection system 5 or the second detection system 6 and the diversion system 4; after the components are placed on the first conveying mechanism 1, they need to pass through the data acquisition system 3 and the diversion system 4 in turn, and then enter the corresponding second conveying mechanism 2 according to the type of the components, and pass through the first detection system 5 or the second detection system 6 for detection. In order to ensure the accuracy of the parts movement process, a limit system 8 is installed on the first conveying mechanism 1 and the two second conveying mechanisms 2. The limit system 8 on the first conveying mechanism 1 guides the parts to accurately correspond to the diversion system 4, so that they enter the corresponding second conveying mechanism 2 with the help of the diversion system 4; and the parts moved to the second conveying mechanism 2 also need to be inspected by the first detection system 5 and the second detection system 6, and the limit systems 8 on the first conveying mechanism 1 and the second conveying mechanism 2 are used to control the parts to accurately pass under the first detection system 5 and the second detection system 6.

[0054] See also Figure 1 and Figure 3 As a specific embodiment of the component nondestructive testing device provided by the present invention, the limiting system 8 includes a limiting frame 81, a linear driver 82 and a limiting plate 83. The limiting frame 81 is installed on both sides of the first conveying mechanism 1 or the second conveying mechanism 2. There are two linear drivers 82, which are respectively fixed on the limiting frame 81, and the limiting plates 83 are respectively fixed on the free ends of the linear drivers 82; the limiting frame 81 is a U-shaped structure, the web is fixed at the lower end of the first conveying mechanism 1 or the second conveying mechanism 2, the two wing plates are respectively fixed on both sides of the first conveying mechanism 1 or the second conveying mechanism 2, and the two linear drivers 82 are respectively fixed On the two wing plates, and located above the first conveying mechanism 1 or the second conveying mechanism 2, the limit plate 83 is fixed on the free end of the linear drive 82, and the lower end surface of the limit plate 83 is higher than the conveying surface of the first conveying mechanism 1 or the second conveying mechanism 2; after the parts pass through the data acquisition system 3 or enter the second conveying mechanism 2, the two linear drives 82 are started to drive the two limit plates 83 to move toward the parts, thereby clamping the parts and positioning them at the exact position on the first conveying mechanism 1 or the second conveying mechanism 2, so that the parts can be accurately moved by the diverter plate 41 or detected by the first detection system 5 or the second detection system 6.

[0055] A guiding slope 84 is provided on the limiting plate 83 so that shaft components or gear components can smoothly enter between the two limiting plates 83 .

[0056] See also Figure 1 and Figure 2 As a specific embodiment of the component nondestructive testing device provided by the present invention, the data acquisition system 3 includes a vertical plate 31, a top plate 32, a camera 33 and a laser detection head 34. The vertical plate 31 is fixed on one side of the first conveying mechanism 1, and one end of the top plate 32 is fixed to the upper end of the vertical plate 31 and is located above the first conveying mechanism 1; the laser detection head 34 is installed on the side of the vertical plate 31 close to the first conveying mechanism 1, and the camera 33 is installed at the lower end of the top plate 32; the vertical plate 31 is used to install the laser detection head 34, and the top plate 32 is used to install the camera 33. When the component passes through the data acquisition system 3, the camera 33 takes an image of the component from above the component, and the laser detection head 34 detects the thickness of the component, and transmits the collected data to the control system 7. The control system 7 identifies the parts in the image through an algorithm, connects the image in a region, and determines the type of the part by judging the length-to-width ratio of the image. The data is used to control the diversion system 4 to achieve diversion of different parts. According to the analysis of the pictures and other data collected by the camera 33 and the laser detection head 34, it is known that the component is a gear part or a shaft part. The type, diameter parameters, height parameters, etc. of the component are obtained based on the data such as the diameter size of the component obtained from the picture, and the control system 7 controls the operation of each part.

[0057] A bottom plate 35 is fixedly mounted at the lower end of the first conveying mechanism 1, the lower end of the vertical plate 31 is fixed on the bottom plate 35, and the top plate 32 is arranged parallel to the bottom plate 35. The bottom plate 35 makes the vertical plate 31 and the top plate 32 more secure.

[0058] See also Figure 1 and Fig. 9As a specific embodiment of the nondestructive testing device for parts provided by the present invention, the diversion system 4 also includes a mounting seat 42, a transmission gear 43, a connecting rod 44 and a transmission rack 45. The mounting seat 42 is arranged between the two second transmission mechanisms 2, the transmission gear 43 is rotatably connected to the mounting seat 42, the transmission rack 45 is meshed with the transmission gear 43, the lower end of the connecting rod 44 is fixed to the upper end surface of the transmission gear 43, and the upper end extends upward; the diverter plate 41 is fixed to the upper end of the connecting rod 44 and is located on the first transmission mechanism 1; the mounting seat 42 is fixed to the ground, and a mounting hole is opened on the mounting seat 42, and a bearing is installed in the mounting hole. After the transmission gear 43 is installed on the mounting seat 42, through The bearing realizes the rotation connection; the connecting rod 44 is fixed at the upper end of the transmission gear 43, and the upper end of the connecting rod 44 is higher than the first transmission mechanism 1, and the diverter plate 41 is fixed in a horizontal state on the upper end of the connecting rod 44, and is located directly above the first transmission mechanism 1 or the lower end is abutted against the first transmission mechanism 1; a meshing transmission rack 45 is installed on one side of the transmission gear 43, and a cylinder is set to be connected with the transmission rack 45. The cylinder is started to pull the transmission rack 45 to make a linear motion, thereby driving the transmission gear 43 to rotate on the mounting seat 42, so that the connecting rod 44 and the diverter plate 41 rotate together, and the inclination direction of the diverter plate 41 is changed, so that the parts can smoothly enter the corresponding second transmission mechanism 2.

[0059] The diverter plate 41 is a long block structure, which can bear the impact force of the parts. A rubber layer is installed on the side of the diverter plate 41 to prevent the parts from being damaged again.

[0060] See also Figures 6 to 8 As a specific embodiment of the nondestructive testing device for parts provided by the present invention, a long plate 68 is provided at the lower end of the slider 64, the length direction of the long plate 68 is the same as the radial direction of the eccentric wheel 62, and the multi-channel probe 66 is installed at the lower end of the long plate 68; the lower end of the long plate 68 has a long strip-shaped mounting surface, and the multi-channel probe 66 is installed at the lower end of the long plate 68, so when scanning gear parts, the scanning and detection range is wider. The long plate 68 is set as a trapezoidal structure, the lower end of the slider 64 is provided with a slot, the upper end of the long plate 68 is installed in the slot, and the mounting surface of the lower end is parallel to the end face of the gear parts.

[0061] See also Figure 1 and Figure 6As a specific embodiment of the nondestructive testing device for parts provided by the present invention, a marking probe 69 is provided on the first lifter 51 and the second lifter 61; the control system 7 is implemented by a computer, and the control system 7 is used for signal collection and command sending, and can monitor the detection results in real time. The first detection system 5 and the second detection system 6 transmit the detected data to the control system 7, and the control system 7 analyzes the signal; the parts with zero crossing points and signal gradients exceeding the threshold need to be marked, that is, the corresponding marking probe 69 is started, and the surface of the parts judged to have no recycling value is sprayed with a non-qualified mark; for parts without damage, there is no need to spray and they are directly transmitted to the subsequent process by the second transmission mechanism 2, so as to realize the part screening in remanufacturing and recycling.

[0062] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A non-destructive testing device for parts, characterized in that: It includes a first transmission mechanism, a second transmission mechanism, a data acquisition system, a flow distribution system, a first detection system, a second detection system and a control system; There are two second conveying mechanisms, which are connected to the first conveying mechanism; the data acquisition system is installed on the first conveying mechanism and is used to collect component information on the first conveying mechanism; The flow dividing system is installed at the end of the first conveying mechanism and is located between the two second conveying mechanisms; the flow dividing system includes a rotatably connected flow dividing plate for guiding the parts to move toward the second conveying mechanism; The first detection system and the second detection system are respectively installed on the two second transmission mechanisms, and the first detection system and the second detection system use a magnetic memory detection method to detect shaft parts or gear parts; The first detection system comprises a first lifter, a screw rod, a first driver, two connecting rod mechanisms and a dual-channel probe, wherein the first lifter is located above one of the second transmission mechanisms, the first driver is mounted on the first lifter, the screw rod is spirally connected to the first lifter, the two connecting rod mechanisms are respectively located on both sides of the screw rod, a screw nut is spirally connected to the screw rod, the upper end of the connecting rod mechanism is hinged to the first lifter, and the lower side is hinged to the nut, and the dual-channel probe is mounted on the lower end of the connecting rod mechanism; The second detection system includes a second lifter, an eccentric wheel, a second driver, a slider, a third driver and a multi-channel probe. The second lifter is located above another second transmission mechanism. The eccentric wheel is rotatably connected to the lower end of the second lifter. The second driver is installed on the second lifter and connected to the eccentric wheel. The eccentric wheel is provided with a radially arranged slide groove, the slider is slidably connected to the slide groove, the third driver is connected to the slider, and the multi-channel probe is installed on the slider.

2. The component nondestructive testing device according to claim 1, characterized in that: The first lifter is provided with a first bearing plate, the first driver is fixedly mounted on the first bearing plate, the first bearing plate is provided with a long hole and a sleeve mounted above the long hole, the screw rod passes through the sleeve and the long hole, and the upper end of the connecting rod mechanism passes through the long hole and is hinged to the sleeve.

3. The component nondestructive testing device according to claim 2, characterized in that: The second lifter is provided with a second supporting plate, the second driver is fixedly mounted on the second supporting plate, a mounting groove is opened at the lower end of the second supporting plate, the eccentric wheel is mounted in the mounting groove, and the third driver is located in the mounting groove and fixed on the outer surface of the eccentric wheel.

4. The component nondestructive testing device according to claim 1, characterized in that: The nut is also provided with a horizontal extension plate and an extrusion positioning piece. The horizontal extension plate is provided with a screw hole. The extrusion positioning piece is provided with an external thread section and is spirally installed in the screw hole for positioning components.

5. The component nondestructive testing device according to claim 1, characterized in that: The first conveying mechanism and the second conveying mechanism are both provided with a limit system for limiting the position of parts on the first conveying mechanism and the second conveying mechanism. The limit system on the first conveying mechanism is located between the data acquisition system and the diversion system, and the limit system on the second conveying mechanism is located between the first detection system or the second detection system and the diversion system.

6. The component nondestructive testing device according to claim 5, characterized in that: The limiting system includes a limiting frame, a linear drive and a limiting plate. The limiting frame is installed on both sides of the first conveying mechanism or the second conveying mechanism. There are two linear drives, which are respectively fixed on the limiting frame. The limiting plates are respectively fixed on the free ends of the linear drives.

7. The component nondestructive testing device according to claim 1, characterized in that: The data acquisition system includes a vertical plate, a top plate, a camera and a laser detection head. The vertical plate is fixed on one side of the first conveying mechanism, one end of the top plate is fixed on the upper end of the vertical plate and is located above the first conveying mechanism; the laser detection head is installed on the side of the vertical plate close to the first conveying mechanism, and the camera is installed on the lower end of the top plate.

8. The component nondestructive testing device according to claim 1, characterized in that: The diversion system also includes a mounting seat, a transmission gear, a connecting rod and a transmission rack. The mounting seat is arranged between the two second transmission mechanisms, the transmission gear is rotatably connected to the mounting seat, the transmission rack is meshingly connected to the transmission gear, the lower end of the connecting rod is fixed to the upper end surface of the transmission gear, and the upper end extends upward; the diversion plate is fixed to the upper end of the connecting rod and is located on the first transmission mechanism.

9. The component nondestructive testing device according to claim 1, characterized in that: A long strip is provided at the lower end of the sliding block, the length direction of the long strip is the same as the radial direction of the eccentric wheel, and the multi-channel probe is installed at the lower end of the long strip.

10. The component nondestructive testing device according to claim 1, characterized in that: The first lifter and the second lifter are both provided with marking probes.

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