UT flaw detection automatic detection equipment

Abstract

The invention relates to the technical field of UT flaw detection automatic detection equipment, and discloses UT flaw detection automatic detection equipment which comprises a mounting base, a probe quick-changing table is arranged at the top end of the mounting base, a quick-changing disc tool disc assembly is arranged on the probe quick-changing table, and a rotary table assembly is arranged on the side edge of the probe quick-changing table. A robot support is arranged on the side edge of the rotary table assembly, a collaborative robot is installed at the top end of the robot support, and a quick-change disc main disc assembly is arranged at the end of the collaborative robot. By arranging the probe quick-change table, the quick-change disc tool disc assembly, the rotary table assembly, the collaborative robot and the quick-change disc main disc assembly at the top of the mounting base, manual detection can be replaced by using an automatic device, the requirement for the number of certificate holding operators is reduced, meanwhile, the influence of human factors on a detection result can be avoided, and the detection efficiency is improved. The accuracy and credibility of a detection result are improved, and automation of UT detection is realized.

Description

Technical Field

[0001] The invention relates to the technical field of UT flaw detection automatic detection equipment, in particular to UT flaw detection automatic detection equipment. Background Art

[0002] In the production process, due to product structure and process problems, some internal defects may occur. Because some products are heavy, destructive testing is costly, so non-destructive testing is used, and UT is one of the testing methods. UT flaw detection has a wide range of applications, and there is no universal UT flaw detection automatic detection device at home and abroad.

[0003] Since the entire flaw detection process of existing products is mostly operated manually with a flaw detector, the workpiece to be detected is required to be fully covered, and there are relatively strict requirements on the detection path, probe, and pressure applied to the probe during flaw detection (the size of the pressure will affect the sensitivity of the probe, which will affect the judgment of the defect size, and thus affect the final result of whether the product is qualified or not). In addition, for the flaw detection of valve bodies, 6 sets of probes or more are required for surfaces of different thicknesses and shapes. Since it is cumbersome to replace the probe on site, the instrument must be calibrated every time the probe is replaced. Therefore, one machine, one person, and one probe are usually used, and different people use different flaw detectors and probe combinations to complete the entire flaw detection. Among them, the flaw detection operation needs to be certified, and the requirements for flaw detectors are high. Different people use probe pressure, probe moving speed, and probe path coverage on parts. There will be differences. Defects are also manually judged and recorded, making the objectivity and credibility of the flaw detection results easily affected by human factors, thereby affecting the accuracy of the flaw detection data. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an automatic UT flaw detection device, which solves the problem that the entire flaw detection process of existing products is mostly operated manually with a flaw detector, the workpiece to be detected requires full coverage detection, and there are relatively strict requirements on the detection path, probe, and pressure applied to the probe during flaw detection (the size of the pressure will affect the sensitivity of the probe, which will affect the judgment of the defect size, and thus affect the final result of whether the product is qualified or not). For the flaw detection of valve bodies, 6 sets of probes or more are required for surfaces of different thicknesses and shapes. Since it is cumbersome to replace the probe on site, the instrument must be calibrated each time the probe is replaced. Therefore, one machine, one person, and one probe are usually used, and different people use different flaw detectors and probe combinations to complete the entire flaw detection. Among them, the flaw detection operation needs to be certified, and the requirements for the flaw detector are high. Different people use different probe pressures, probe moving speeds, and probe path coverage on parts. The defects are also manually judged and recorded, so that the objectivity and credibility of the flaw detection results are easily affected by human factors, thereby affecting the accuracy of the flaw detection data.

[0005] The present invention provides the following technical solution: a UT flaw detection automatic detection device, comprising a mounting base, a probe quick-change platform is arranged at the top of the mounting base, a quick-change disk tool tray assembly is arranged on the probe quick-change platform, a turntable assembly is arranged on the side of the probe quick-change platform, a robot bracket is arranged on the side of the turntable assembly, a collaborative robot is installed on the top of the robot bracket, and a quick-change disk main tray assembly is arranged at the end of the collaborative robot;

[0006] The quick-change tool tray assembly comprises a first quick-change tool tray, a probe fixing rod is arranged at the bottom end of the first quick-change tool tray, a probe fixing box is arranged at the end of the probe fixing rod, a workpiece probe is installed on the probe fixing box, and two lubricating brushes are symmetrically arranged on both sides of the workpiece probe;

[0007] The first quick-change tool plate includes a first quick-change main plate, a robot connecting plate is arranged on the top of the first quick-change main plate, two linear bearings are symmetrically arranged on both sides of the top of the first quick-change main plate, a guide shaft is inserted into the top of the linear bearing, the top of the guide shaft is connected to the bottom of the robot connecting plate, and a buffer spring is sleeved on the guide shaft.

[0008] Preferred technical solution 1: The turntable assembly includes a slewing bracket, a slewing bearing is arranged at the top of the slewing bracket, a servo motor is arranged on the side of the slewing bearing, and an oil collecting pan is installed at the top of the slewing bearing.

[0009] Preferred technical solution 2: A three-jaw chuck is provided in the middle of the top of the oil collecting pan, and an oil outlet pipe is connected to the side of the oil collecting pan.

[0010] Preferred technical solution three: the top end of the probe fixing rod is connected to the bottom of the first quick-change tool tray via a provided mounting tube.

[0011] This solution enables the probe fixing rod to provide stable support for the workpiece probe.

[0012] Preferred technical solution four: A groove is provided in the middle of the top of the robot connecting plate to facilitate installation.

[0013] This solution can make the connection between the robot connecting plate and the robot more convenient.

[0014] Preferred technical solution five: An oil outlet is provided on the side of the oil collecting pan, and the oil outlet is connected to the oil outlet pipe.

[0015] This solution can make it easier to discharge the coupling agent that overflows into the oil collecting pan.

[0016] Preferred technical solution six: the number of the quick-change tray tool tray assemblies is greater than three and is divided into two groups, and the two groups of quick-change tray tool tray assemblies are symmetrically distributed about the central axis of the probe quick-change station.

[0017] This solution enables multiple quick-change tool tray assemblies to work in turn to ensure uninterrupted operation of the device, and can also work simultaneously to improve the working efficiency of the device.

[0018] Preferred technical solution seven: a plurality of through holes arranged at equal intervals are formed on the outer surface of the first quick-change disk main disk, and the number of the through holes is greater than three.

[0019] Preferred technical solution eight: material trays are provided on both sides of the probe quick-change platform, and universal wheels are installed on the lower surface of the probe quick-change platform.

[0020] This solution enables the probe to be quickly changed and moved, and at the same time, the materials and tools used for collection work can be placed on the material tray.

[0021] Compared with the prior art, the present invention provides a UT flaw detection automatic detection device, which has the following beneficial effects:

[0022] (1) The present invention provides a probe quick-change platform, a quick-change tool tray assembly, a turntable assembly, a collaborative robot and a quick-change main tray assembly on the top of the mounting base, thereby using an automated device to replace manual inspection, reducing the need for certified operators and improving production efficiency. At the same time, it can prevent the detection results from being affected by human factors, improve the accuracy and reliability of the detection results, and realize the automation of UT inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 Schematic diagram of the structure of the tool tray assembly of the medium quick-change tray;

[0025] Figure 3 For the present invention Figure 2 Schematic diagram of the structure of the first quick-change tool tray;

[0026] Figure 4 For the present invention Figure 1 A schematic diagram of the structure of the middle turntable assembly;

[0027] Figure 5 For the present invention Figure 1 Schematic diagram of the structure of the central probe quick change station.

[0028] In the figure: 1. Mounting base; 2. Probe quick change table; 3. Quick change tray tool tray assembly; 4. Turntable assembly; 5. Robot bracket; 6. Collaborative robot; 7. Quick change tray main tray assembly;

[0029] 30. First quick-change tool tray; 31. Probe fixing rod; 32. Probe fixing box; 33. Workpiece probe; 34. Lubricating brush;

[0030] 301, first quick-change main plate; 302, robot connecting plate; 303, linear bearing; 304, guide shaft; 305, buffer spring;

[0031] 401, slewing bracket; 402, slewing bearing; 403, servo motor; 404, oil collecting tray; 405, three-jaw chuck; 406, oil outlet pipe. DETAILED DESCRIPTION

[0032] See also Figure 1-5 ,

[0033] Embodiment 1: A UT flaw detection automatic detection equipment comprises a mounting base 1, a probe quick-change table 2 is arranged on the top of the mounting base 1, a quick-change disk tool disk assembly 3 is arranged on the probe quick-change table 2, a turntable assembly 4 is arranged on the side of the probe quick-change table 2, a robot bracket 5 is arranged on the side of the turntable assembly 4, a collaborative robot 6 is installed on the top of the robot bracket 5, and a quick-change disk main disk assembly 7 is arranged at the end of the collaborative robot 6.

[0034] The quick-change tool tray assembly 3 includes a first quick-change tool tray 30, a probe fixing rod 31 is provided at the bottom end of the first quick-change tool tray 30, a probe fixing box 32 is provided at the end of the probe fixing rod 31, a workpiece probe 33 is installed on the probe fixing box 32, and two lubricating brushes 34 are symmetrically provided on both sides of the workpiece probe 33.

[0035] The first quick-change tool plate 30 includes a first quick-change main plate 301, a robot connecting plate 302 is arranged on the top of the first quick-change main plate 301, two linear bearings 303 are symmetrically arranged on both sides of the top of the first quick-change main plate 301, a guide shaft 304 is inserted into the top of the linear bearing 303, the top of the guide shaft 304 is connected to the bottom of the robot connecting plate 302, and a buffer spring 305 is sleeved on the guide shaft 304.

[0036] The turntable assembly 4 includes a turntable support 401, a turntable bearing 402 is arranged at the top of the turntable support 401, a servo motor 403 is arranged on the side of the turntable bearing 402, an oil collecting pan 404 is installed on the top of the turntable bearing 402, a three-jaw chuck 405 is arranged in the middle of the top of the oil collecting pan 404, and an oil outlet pipe 406 is connected to the side of the oil collecting pan 404.

[0037] Embodiment 2: The difference between this embodiment and embodiment 1 is that, the top end of the probe fixing rod 31 is connected to the bottom of the first quick-change tool tray 30 through a mounting tube.

[0038] The probe fixing rod 31 is able to provide stable support for the workpiece probe 33 .

[0039] Embodiment 3: The difference between this embodiment and embodiment 1 is that a groove for facilitating installation is provided in the middle of the top of the robot connecting plate 302 .

[0040] This makes the connection between the robot connecting plate 302 and the robot more convenient.

[0041] Embodiment 4: The difference between this embodiment and embodiment 1 is that an oil outlet is provided on the side of the oil collecting pan 404 , and the oil outlet is connected to the oil outlet pipe 406 .

[0042] This makes it easier to discharge the coupling agent that overflows into the oil collecting pan 404 .

[0043] Embodiment 5: The number of quick-change tool tray assemblies 3 is greater than three and is divided into two groups. The two groups of quick-change tool tray assemblies 3 are symmetrically distributed about the central axis of the probe quick-change station 2 .

[0044] This solution enables multiple quick-change tool tray assemblies 3 to work in turn to ensure uninterrupted operation of the device, and also allows them to work simultaneously to improve the working efficiency of the device.

[0045] Embodiment 6: The outer surface of the first quick-change disk main disk 301 is provided with a plurality of through holes which are arranged at equal intervals, and the number of the through holes is greater than three.

[0046] Embodiment 7: Material trays are provided on both sides of the probe quick-change platform 2, and universal wheels are installed on the lower surface of the probe quick-change platform 2.

[0047] This solution can make the probe fast change table 2 move quickly, and at the same time, the materials and tools used for collection work can be placed on the material drag tray.

[0048] In this embodiment, since the entire process of existing product flaw detection is mostly operated manually with a flaw detector, the workpiece to be detected requires full coverage detection, and there are relatively strict requirements on the detection path, probe, and the pressure applied to the probe during flaw detection. The pressure will affect the sensitivity of the probe, and will affect the judgment of the defect size, thereby affecting the final result of whether the product is qualified or not. For the flaw detection of valve bodies, 6 sets of probes or more are required for surfaces of different thicknesses and shapes. Since it is cumbersome to replace the probe on site, the instrument must be calibrated each time the probe is replaced. Therefore, one machine, one person, and one probe are usually used, and different people use different flaw detectors and probe combinations to complete the entire flaw detection. Among them, the flaw detection operation needs to be certified, and the requirements for flaw detection personnel are high. Different people use probe pressure, probe moving speed, and probe path coverage on parts. There will be differences. Defects are also manually judged and recorded, so that the objectivity and credibility of the flaw detection results are easily affected by human factors, thereby affecting the accuracy of the flaw detection data.

[0049] In summary, in the specific implementation, the user first needs to clamp and fix the workpiece on the turntable assembly 4, and the collaborative robot 6 carries the workpiece probe 33 installed on the quick-change tool tray assembly 3 and moves according to the path automatically set by the software. The special software can assist programming according to the 3D model of the part, including the robot's planned motion path for different feature surfaces of the part, automatic setting of the probe type, contact pressure, moving speed, etc., combined with a multi-channel ultrasonic flaw detection card with control IO and its supporting software, it can automatically detect forgings of different models and specifications, automatically record detection data / curves, and automatically identify defects.

[0050] A plurality of quick-change tray tool tray assemblies 3 are installed on the probe quick-change station 2. The quick-change tray tool tray assembly 3 mainly consists of a first quick-change tray tool tray 30, a probe fixing rod 31, a probe fixing box 32, a workpiece probe 33, a lubricating brush 34 and other components.

[0051] A lubricating brush 34 is installed on the quick-change tool plate assembly 3, which can brush oil while the workpiece probe 33 is moving to ensure that the detection coupling agent is evenly applied. In order to cooperate with the ultrasonic detection of the probe, a flow valve is installed in the oil circuit to adjust the spray flow rate, and the oiling pipeline is connected through the water-oil module of the quick-change plate.

[0052] Each quick-change tool tray assembly 3 is equipped with workpiece probes 33 of different specifications, and different tool tray assemblies can be replaced as needed. The workpiece probe 33 is fixed to the probe fixing rod through a special clamp probe fixing box and fastened by screws and nuts.

[0053] The structure of the quick-change disk main disk assembly 7 is mainly composed of components such as a robot connecting plate 302, a buffer spring 305, a guide shaft 304, a linear bearing 303, and a first quick-change disk main disk 301. A high-frequency module and a water-oil module are installed on the first quick-change disk main disk 301, which can transmit the high-frequency signal of the workpiece probe 33 and media such as water and oil from the main disk end to the tool disk end, or from the tool disk end to the main disk end.

[0054] UT testing has relatively high requirements for the consistency of contact pressure, and generally requires applying a pressure of 1.5 to 2.5 kg. A collaborative robot 6 with six-dimensional force control function and position sensor is selected. This component has a certain floating buffer function, which can enable the robot to automatically adapt to the surface differences of parts and prevent damage to parts caused by collisions.

[0055] The structure of the turntable assembly 4 is mainly composed of a turntable support 401, a turntable bearing 402, a three-jaw chuck 405, an oil collecting tray 404, an oil outlet pipe 406, a servo motor 403 and other components, and has clamping and rotating functions.

[0056] The workbench fixes the workpiece through a three-jaw chuck 405, and the servo motor 403 provides power to control the rotation of the slewing bearing, which is convenient for the robot to detect all sides of the workpiece. An oil collecting pan 404 is installed to store dripping coupling agent to prevent environmental pollution. When the oil collecting pan 404 is full, the valve can be opened to discharge the coupling agent in the oil collecting pan 404 through the oil outlet pipe 406.

[0057] The structure of the quick-change tray tool tray assembly 3 is mainly composed of components such as the probe quick-change table 2, the tool tray assembly, the oil collecting tray 1, the oil collecting tray 2, and positioning pins. The tool tray assembly and the probe quick-change table 2 are positioned by positioning pins to ensure that they cooperate with the first quick-change tray main tray 301 carried on the robot.

Claims

1. A UT flaw detection automatic detection device, comprising a mounting base (1), characterized in that: A probe quick-change platform (2) is arranged at the top of the mounting base (1), a quick-change plate tool plate assembly (3) is arranged on the probe quick-change platform (2), a turntable assembly (4) is arranged on the side of the probe quick-change platform (2), a robot bracket (5) is arranged on the side of the turntable assembly (4), a collaborative robot (6) is installed at the top of the robot bracket (5), and a quick-change plate main plate assembly (7) is arranged at the end of the collaborative robot (6); The quick-change tool tray assembly (3) comprises a first quick-change tool tray (30), a probe fixing rod (31) is arranged at the bottom end of the first quick-change tool tray (30), a probe fixing box (32) is arranged at the end of the probe fixing rod (31), a workpiece probe (33) is mounted on the probe fixing box (32), and two lubricating brushes (34) are symmetrically arranged on both sides of the workpiece probe (33); The first quick-change tool plate (30) comprises a first quick-change main plate (301), a robot connecting plate (302) is arranged on the top of the first quick-change main plate (301), two linear bearings (303) are symmetrically arranged on both sides of the top of the first quick-change main plate (301), a guide shaft (304) is inserted into the top of the linear bearing (303), the top of the guide shaft (304) is connected to the bottom of the robot connecting plate (302), and a buffer spring (305) is sleeved on the guide shaft (304).

2. The UT flaw detection automatic detection equipment according to claim 1 is characterized in that: The turntable assembly (4) comprises a turntable (401), a turntable (402) is arranged at the top end of the turntable (401), a servo motor (403) is arranged on the side of the turntable (402), and an oil collecting pan (404) is installed at the top end of the turntable (402).

3. The UT flaw detection automatic detection equipment according to claim 2 is characterized in that: A three-jaw chuck (405) is provided in the middle of the top of the oil collecting pan (404), and an oil outlet pipe (406) is connected to the side of the oil collecting pan (404).

4. The UT flaw detection automatic detection equipment according to claim 3 is characterized in that: The top end of the probe fixing rod (31) is connected to the bottom of the first quick-change tool tray (30) via a provided mounting tube.

5. The UT flaw detection automatic detection equipment according to claim 4 is characterized in that: A groove for easy installation is provided in the middle of the top of the robot connecting plate (302).

6. The UT flaw detection automatic detection equipment according to claim 5, characterized in that: An oil outlet is provided on the side of the oil collecting pan (404), and the oil outlet is connected to the oil outlet pipe (406).

7. The UT flaw detection automatic detection equipment according to claim 1 is characterized in that: The number of the quick-change tray tool tray assemblies (3) is greater than three and is divided into two groups. The two groups of quick-change tray tool tray assemblies (3) are symmetrically distributed about the central axis of the probe quick-change platform (2).

8. The UT flaw detection automatic detection equipment according to claim 1 is characterized in that: The outer surface of the first quick-change disk main disk (301) is provided with a plurality of through holes arranged at equal intervals, and the number of the through holes is greater than three.

9. The UT flaw detection automatic detection equipment according to claim 1, characterized in that: Material trays are provided on both sides of the probe quick-change platform (2), and universal wheels are installed on the lower surface of the probe quick-change platform (2).

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