Automatic feeding and discharging device for ultrasonic detection equipment

Abstract

An automatic feeding and discharging device for ultrasonic detection equipment comprises a detection equipment body, an automatic feeding part and an automatic discharging part. The detection equipment body comprises a supporting frame, a detection station and a control box. The automatic feeding part comprises a first conveying structure and a mechanical arm structure. The first conveying structure comprises a first support and a first conveying belt device. A limiting rod and a first baffle are arranged on the first support, and a notch is formed in the first baffle. The automatic discharging part comprises a second conveying structure and a clamping structure. The clamping structure comprises a mounting frame, a first pneumatic clamping jaw, a translation structure and a lifting structure. The second conveying structure comprises a second support and a second conveying belt device. The piston feeding and discharging device can achieve automatic feeding and discharging of pistons, improves working efficiency, reduces labor intensity, and saves more time and labor. And through the arrangement of the limiting rods and the notches, all the pistons are placed in the detection stations at the same angle, and the reliability of detection data is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of piston detection, in particular to an automatic loading and unloading device for ultrasonic detection equipment. Background Art

[0002] The piston is one of the basic components of the engine and is the heart of the engine. At present, automobile pistons are developing towards high strength, high wear resistance, high precision, low expansion, lightweight, and structural combination. The piston generally consists of an upper part and a lower part (such as Figure 2 and Figure 3 As shown in the figure, during the production process, the upper part of the piston needs to be inspected to detect the performance of the piston product, and during the inspection process, care should be taken to protect the top surface of the upper part to prevent scratches on the top surface.

[0003] To address the issues of poor accuracy, low efficiency, and time-consuming manual testing, existing technologies typically employ ultrasonic testing equipment for nondestructive testing. Ultrasonic testing equipment uses the interaction between ultrasound and the device under test, generating reflection, transmission, and scattered waves, to detect macroscopic defects in pistons.

[0004] For example, a Chinese patent with authorization announcement number CN208091974U discloses an ultrasonic detection device for piston rings, including a detection box, which is divided into two layers, the upper layer of the detection box is a detection liquid tank, and the lower layer of the detection box is an equipment base cabinet; a piston tray, a probe adjustment column, a first ultrasonic receiving probe, an ultrasonic transmitting probe, and a second ultrasonic receiving probe are provided in the detection liquid tank, a slide groove is provided on the bottom plate of the detection liquid tank, a slider is provided on the slide groove, the probe adjustment column is fixed on the slider, the first ultrasonic receiving probe, the ultrasonic transmitting probe, and the second ultrasonic receiving probe are respectively fixed on the probe adjustment column from top to bottom through a clamp; a motor, a controller and an ultrasonic detector are provided on the bottom plate of the equipment base cabinet, the output of the motor is fixedly connected to the piston tray after passing through the through hole, the controller is respectively connected to the ultrasonic detector and the motor, and the ultrasonic detector is respectively connected to the first ultrasonic receiving probe, the ultrasonic transmitting probe, and the second ultrasonic receiving probe.

[0005] A Chinese patent application with authorization publication number CN210322903U discloses a piston ultrasonic flaw detection fixture, comprising a housing for placing a flaw detection solution, a fixture platform disposed within the housing, three non-collinear fixtures for securing the piston, at least one of which is movable, and a probe disposed on the fixture platform for ultrasonic flaw detection of the piston. When it is necessary to secure pistons of varying diameters, the user simply adjusts the positions of the fixtures so that the relative positions of the three fixtures match the piston, secures the piston, and then uses the probe to ultrasonically inspect the piston for defects in the weld area. The piston ultrasonic flaw detection fixture provided by this utility model has a simple structure and a convenient, quick, and efficient inspection process, improving inspection efficiency and reducing worker labor intensity and operational difficulty. Furthermore, by adjusting the positions of the fixtures, pistons of varying sizes can be inspected, reducing production costs.

[0006] However, when ultrasonic testing equipment is used to test pistons in the above patents, manual loading and unloading is required, which not only has low work efficiency, but also is time-consuming, labor-intensive and labor-intensive.

[0007] Therefore, the present invention proposes a technical solution to solve the above-mentioned problem that manual loading and unloading is not only inefficient but also time-consuming, labor-intensive and labor-intensive. Utility Model Content

[0008] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an automatic loading and unloading device for ultrasonic detection equipment, aiming to achieve the technical effects of automatic loading and unloading, improving work efficiency, reducing labor intensity, and saving time and effort.

[0009] An automatic loading and unloading device for ultrasonic testing equipment includes a testing equipment body, the testing equipment body including a support frame, a testing station installed on the left side of the top of the support frame, and a control box installed on the right side of the top of the support frame, and also includes an automatic loading part and an automatic unloading part;

[0010] The automatic loading part includes a first conveying structure and a mechanical arm structure;

[0011] The first conveying structure includes a first bracket and a first conveyor belt device, the first bracket is located on the left side of the detection equipment body, the first conveyor belt device is installed at the top of the first bracket and extends horizontally to the left and right, a plurality of fixing seats are fixed on the front and rear sides of the first bracket, and extension rods are installed on the tops of several of the fixing seats, the other ends of several of the extension rods extend to the top of the first conveyor belt device, and a limiting rod with an extension direction consistent with the first conveyor belt device is fixed between them, the two limiting rods are symmetrically arranged front and back, and a gap is reserved between them for the lower part of the piston to pass through, a first photoelectric sensor is installed on the left side of the top of the first bracket, and a first baffle is fixed on the right side of the top of the first bracket, which is located above the first conveyor belt device, and a notch corresponding to the gap is opened at the left end of the first baffle, and a proximity sensor is installed on the first baffle, and the first photoelectric sensor and the proximity sensor are both electrically connected to the first conveyor belt device through a PLC controller;

[0012] The mechanical arm structure is located between the first bracket and the detection device body, and is used to clamp the piston in the notch and place the piston on the detection station;

[0013] The automatic unloading part includes a second conveying structure and a clamping structure;

[0014] The clamping structure includes a mounting frame, a first pneumatic clamp, a translation structure and a lifting structure, the mounting frame is located on the right side between the detection equipment body, the mounting frame includes a beam and a number of support rods fixed to the bottom end of the beam, the height of the beam is higher than the detection equipment body, and the left end of the beam extends to directly above the detection station, the translation structure includes a first motor, a screw rod, a guide rail, a nut seat and two fixed blocks, the two fixed blocks are respectively fixed to the left and right sides of the top of the beam, the screw rod is rotatably connected between the two fixed blocks through a rotating shaft, the guide rail is fixedly connected between the two fixed blocks, the nut seat is sleeved on the outside of the screw rod in a threaded connection manner, and is sleeved on the outside of the guide rail in a sliding connection manner, a cavity is opened inside the nut seat, the first motor The lifting mechanism is installed on the fixed block to drive the screw to rotate, and the lifting structure includes a second motor, a mounting block, a sliding sleeve, a gear and a lifting rod, the mounting block is fixed to one side of the nut seat, the mounting block is staggered with the cross beam and is located directly above the detection station, the mounting block is provided with a through slot running vertically through the upper and lower parts, the top end of the lifting rod is located above the mounting block, the bottom end of the lifting rod passes vertically downward through the through slot and is connected to the first pneumatic clamp, a trapezoidal slide rail and a gear rod with the same extension direction are fixed on the lifting rod, the sliding sleeve is fixed on the groove wall of the through slot and slidably sleeved on the outside of the trapezoidal slide rail, the gear is rotatably connected in the through slot through a bearing and meshes with the gear rod, the second motor is installed inside the cavity, and the output shaft of the second motor penetrates into the through slot to drive the gear to rotate;

[0015] The second conveying structure includes a second bracket and a second conveyor belt device. The second bracket is located on the right side of the detection equipment body. The second conveyor belt device is installed at the top of the second bracket and extends horizontally front and back. The top of the second bracket is provided with a second photoelectric sensor, a third photoelectric sensor and a second baffle in sequence from back to front. The second photoelectric sensor is located at the rear side of the top of the second bracket and corresponds to the position of the first pneumatic clamp. The second baffle is located at the front side of the top of the second bracket and above the second conveyor belt device. The third photoelectric sensor is located between the second photoelectric sensor and the second baffle and is close to the second baffle. The second photoelectric sensor and the third photoelectric sensor are both electrically connected to the first conveyor belt device through a PLC controller.

[0016] By adopting the above technical solution, the staff places the piston in an upright position with the upper part facing upward on the first conveyor belt device, and makes the lower part of the piston be located between the two limit rods and corresponding to the first photoelectric sensor. The first photoelectric sensor senses the signal and transmits the signal to the PLC controller, and the PLC controller starts the first conveyor belt device. The first conveyor belt device drives the piston to move to the right. When the piston moves to the right with the first conveyor belt device, the two first limit rods can limit the piston, preventing the piston from tilting, and ensuring that the piston moves horizontally to the right along the interval in an upright position. When the piston is blocked by the first baffle, the lower part of the piston is located in the notch. The setting of the notch can position the piston and prevent the piston from shifting and tilting. At this time, the proximity sensor senses the signal and transmits the signal to the PLC controller, and the PLC controller turns off the first conveyor belt device.

[0017] The piston is then removed from the notch by a robotic arm and flipped over, placed in an inverted position with its upper portion facing downward, into the inspection station for testing. Because the piston's upper surface is flat, while its lower surface is an irregularly curved surface, placing the piston in an inverted position within the inspection station ensures its stability during testing and prevents it from shaking.

[0018] After the inspection is complete, the lifting mechanism drives the first pneumatic gripper downward. The second motor is activated, rotating the gear. The gear drives the meshing rack downward. The rack drives the lifting rod downward along the through slot. The lifting rod drives the trapezoidal guide rail downward along the sleeve, ensuring the stability of the lifting rod during lifting. The lifting rod then drives the first pneumatic gripper downward.

[0019] The piston is then clamped by the first pneumatic clamp, and the output shaft of the second motor is then rotated in the opposite direction, thereby driving the first pneumatic clamp to move upward and reset through the lifting structure, thereby driving the piston to move upward.

[0020] Then the piston is driven to move right through the translation structure. The first motor is started, and the first motor drives the screw rod to rotate. The screw rod drives the nut seat to form a trend of rotating and moving right, and at the same time, since the nut seat is sleeved outside the guide rail, the guide rail plays a circumferential limiting role on the nut seat, and the rotating trend of the nut seat is offset, so that the nut seat only moves right along the screw rod and the guide rail. The mounting block is driven to move right by the nut seat. The mounting block drives the lifting rod to move right, and the lifting rod drives the first pneumatic clamp jaw to move right. The first pneumatic clamp jaw drives the piston to move right until the piston is located directly above the second conveying belt device and corresponds to the second photoelectric sensor.

[0021] Then the second motor is started again, and the lifting rod and the first pneumatic clamp jaw are lowered until the piston is placed on the second conveying belt device. After the piston is placed on the second conveying belt device, the first pneumatic clamp jaw releases the piston, and the first pneumatic clamp jaw is reset through the lifting structure and the translation structure. At the same time, the second photoelectric sensor senses the signal and transmits the signal to the PLC controller, and the PLC controller starts the second conveying belt device. The piston moves forward with the second conveying belt device, so as to move out of the mounting frame. When the piston is blocked by the second baffle, the third photoelectric sensor senses the signal and transmits the signal to the PLC controller, and the PLC controller closes the second conveying belt device. The worker can take the piston for detection from the second conveying belt device.

[0022] The utility model discloses a piston's automatic feeding and discharging can be realized, and work efficiency is improved, labor intensity is reduced, and time and labor are saved. And through the setting of the limiting rod and the gap, each piston is placed in the detection station at the same angle, and the reliability of detection data is improved.

[0023] Further setting of the utility model: the first conveying structure still includes clamping part adjustment structure, the clamping part adjustment structure includes fixed frame, long air cylinder and second pneumatic clamp jaw, the fixed frame is fixed to the top of first support, the long air cylinder is installed to the top of fixed frame, the piston rod of long air cylinder is vertically downward and is connected with second pneumatic clamp jaw, and the second pneumatic clamp jaw is located directly above the gap.

[0024] By adopting the above technical solution, when the piston enters the notch and is blocked by the first baffle and the first conveyor belt device stops operating, the long cylinder is started, and the piston rod of the long cylinder extends, driving the second pneumatic clamp to move downward. The upper side wall of the piston is then clamped by the second pneumatic clamp. The piston rod of the long cylinder is then retracted, driving the piston upward, so that the lower part of the piston moves out of the notch. After the mechanical arm structure runs over, it clamps the lower part of the piston, and then flips the piston through the mechanical arm structure so that the piston is in a state with the upper part facing downward. The piston is then placed in the inspection station through the mechanical arm structure, and the inspection station inspects the piston. By setting the clamping part adjustment structure, the mechanical arm structure can clamp the lower part of the piston, flip it over, and place the piston. Unlike the case where the robotic arm structure directly clamps the upper side wall of the piston and then flips and places the piston, when the robotic arm structure clamps the lower part of the piston and then flips and places the piston, the distance between the upper top surface of the piston and the clamping part of the robotic arm structure is larger, which makes it more convenient to place the piston in the inspection station and avoid damage to the upper top surface of the piston when the piston is placed in the inspection station in an inverted state.

[0025] Further configuration of the present invention: a flip structure is provided at the top of the control box, and the flip structure includes a shaft rod, a flip block, a drive motor and two mounting seats, the two mounting seats are symmetrically arranged front and back, the shaft rod is rotatably connected between the two mounting seats through a bearing, one end of the flip block is fixedly connected to the shaft rod, and the other end of the flip block is installed with a third pneumatic clamp corresponding to the first pneumatic clamp, and the drive motor is installed on the mounting seat to drive the shaft rod to rotate.

[0026] By adopting the above technical solution, when the first pneumatic gripper grasps the inspected piston, it clamps the lower portion of the piston, with the piston facing downward. After being moved upward by the lifting structure, the inspected piston is first moved above the gripping position adjustment structure by the translation structure, so that the inspected piston is directly above the third pneumatic gripper. The lifting structure then moves the inspected piston downward. After the inspected piston is placed at the top of the control box and within the third pneumatic gripper, the first pneumatic gripper is released, and the lifting structure then moves the first pneumatic gripper upward again. At this point, the piston is still facing downward. The third pneumatic gripper is then activated, clamping the upper portion of the piston. The drive motor is then activated, which drives the shaft to rotate, which in turn drives the tilting block, which in turn tilts the third pneumatic gripper, which in turn tilts the piston, placing it at the top of the control box with its upper portion facing upward. The first pneumatic gripper is then moved directly above the piston by the translation mechanism, and then lowered by the lifting mechanism. After the first pneumatic gripper secures the piston's upper sidewall, the translation and lifting mechanisms lower the piston onto the second conveyor. The piston moves with its upper portion facing upward, avoiding frictional damage to its top end.

[0027] The present invention is further provided with the following configuration: one end of the extension rod away from the limiting rod passes through the fixing seat in a sliding connection manner, and the fixing seat is provided with a tightening bolt for tightening the extension rod.

[0028] By adopting the above technical solution, the extension rod can slide on the fixing seat by loosening the tightening bolt, and the extension rod drives the limit rod to move, thereby adjusting the distance between the two limit rods according to the size of the lower part of the piston.

[0029] Further configuration of the present invention: short cylinders are also installed on the front and rear sides of the first bracket, and the two short cylinders are symmetrically arranged front and back. The piston rods of the two short cylinders extend to the top of the first conveyor belt device and are fixed with push blocks. The push blocks are located between the first conveyor belt device and the first baffle.

[0030] With this technical solution, when the piston enters the notch and is blocked by the first baffle, the two short cylinders are activated simultaneously. The piston rods of the short cylinders extend, driving the push blocks toward the piston. After the two push blocks clamp the piston, the piston rods of the short cylinders retract, returning the push blocks to their original position. This helps correct the piston and prevent it from tilting.

[0031] A further configuration of the present invention is that rubber pads are fixed on the inner side wall of the notch and the rear side wall of the second baffle.

[0032] By adopting the above technical solution, the provision of the rubber pad can prevent the piston from being damaged due to collision with the first baffle and the second baffle.

[0033] The utility model is further configured as follows: an accordion-type dustproof folding cover is fixed between the nut seat and the two fixing blocks and is sleeved on the outside of the screw rod and the guide rail.

[0034] By adopting the above technical solution, the accordion-type dustproof folding cover expands and contracts as the nut seat slides, and the accordion-type dustproof folding cover can effectively protect the screw rod and the guide rail without affecting the movement of the nut seat.

[0035] Compared with the prior art, the beneficial effects of the present invention are:

[0036] 1. An automatic loading and unloading device for ultrasonic testing equipment. This utility model can automatically load and unload pistons, improving work efficiency, reducing labor intensity, and saving time and effort. Furthermore, by providing a limit rod and notch, each piston is placed into the testing station at the same angle, improving the reliability of the test data.

[0037] 2. The arrangement of the clamping portion adjustment structure and the flipping structure can prevent the top surface of the piston from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a structural schematic diagram of an automatic loading and unloading device for ultrasonic testing equipment according to the present invention;

[0039] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0040] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0041] Figure 4 for Figure 1 Enlarged view of point C in the middle;

[0042] Figure 5 for Figure 1 Enlarged view of point D in the middle;

[0043] Figure 6 This is a schematic structural diagram of a clamping structure in an automatic loading and unloading device for ultrasonic testing equipment according to the present invention;

[0044] Figure 7 for Figure 6 Enlarged view of point E in the middle;

[0045] Figure 8This is a partial cross-sectional view of a beam and a translation structure in an automatic loading and unloading device for ultrasonic testing equipment according to the present invention, viewed from the side;

[0046] Figure 9 This is a top view of a flip structure in an automatic loading and unloading device for ultrasonic testing equipment according to the present invention.

[0047] Figure numerals: 1, support frame; 2, detection station; 3, control box; 4, robot arm structure; 5, first bracket; 6, first conveyor belt device; 7, fixed seat; 8, extension rod; 9, tightening bolt; 10, limit rod; 11, first photoelectric sensor; 12, first baffle; 13, notch; 14, proximity sensor; 15, short cylinder; 16, push block; 17, fixed frame; 18, long cylinder; 19, second pneumatic clamp; 20, shaft; 21, flip block; 22, drive motor; 23, mounting seat; 24, mounting frame; 25, first pneumatic clamp ; 26. Crossbeam; 27. Support rod; 28. First motor; 29. ​​Screw; 30. Guide rail; 31. Nut seat; 32. Fixed block; 33. Cavity; 34. Second motor; 35. Mounting block; 36. Sleeve; 37. Gear; 38. Lifting rod; 39. Through slot; 40. Trapezoidal slide rail; 41. Gear rod; 42. Second bracket; 43. Second conveyor belt device; 44. Second photoelectric sensor; 45. Third photoelectric sensor; 46. Second baffle; 47. Accordion dustproof folding cover; 48. Third pneumatic clamp; 49. Upper part; 50. Lower part. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0049] An automatic loading and unloading device for ultrasonic testing equipment, such as Figures 1-9 As shown, it includes a detection equipment body, an automatic loading part, an automatic unloading part and a flip structure.

[0050] The detection device body includes a support frame 1, a detection station 2 installed on the left side of the top of the support frame 1, and a control box 3 installed on the right side of the top of the support frame 1. The detection device body is a mature existing technology and will not be described in detail here.

[0051] The automatic loading part includes a first conveying structure and a robotic arm structure 4.

[0052] The first conveying structure includes a first bracket 5, a first conveyor belt device 6 and a clamping position adjustment structure.

[0053] The first bracket 5 is located on the left side of the detection device body. The first conveyor belt device 6 is mounted on the top of the first bracket 5 and extends horizontally to the left and right. The first conveyor belt device 6 is a mature existing technology and will not be described in detail here. Several fixing seats 7 are fixed to the front and back sides of the first bracket 5. Extension rods 8 are slidably inserted into the tops of the several fixing seats 7. The fixing seats 7 are provided with tightening bolts 9 for tightening the extension rods 8. The other ends of the several extension rods 8 extend above the first conveyor belt device 6, and a limit rod 10 is fixed between them, extending in the same direction as the first conveyor belt device 6. The two limit rods 10 are arranged symmetrically front and back, and a gap is left between them for the lower part 50 of the piston to pass through. A first photoelectric sensor 11 is mounted on the left side of the top of the first bracket 5. A first baffle 12 is fixed on the right side of the top of the first bracket 5, located above the first conveyor belt device 6. A notch 13 corresponding to the gap is opened at the left end of the first baffle 12. A proximity sensor 14 corresponding to the notch 13 is mounted on the first baffle 12. The first photoelectric sensor 11 and the proximity sensor 14 are both electrically connected to the first conveyor belt device 6 via a PLC controller. Short cylinders 15 are also installed on the front and rear sides of the first bracket 5. The two short cylinders 15 are symmetrically arranged front and back. The piston rods of the two short cylinders 15 extend to the top of the first conveyor belt device 6 and are fixed with a push block 16. The push block 16 is located between the first conveyor belt device 6 and the first baffle 12. The clamping position adjustment structure includes a fixed frame 17, a long cylinder 18, and a second pneumatic clamp 19. The fixed frame 17 is fixed to the top of the first bracket 5. The long cylinder 18 is installed at the top of the fixed frame 17. The piston rod of the long cylinder 18 is vertically downward and connected to the second pneumatic clamp 19. The second pneumatic clamp 19 is located directly above the notch 13.

[0054] The mechanical arm structure 4 is located between the first bracket 5 and the detection device body, and is used to clamp the piston in the notch 13 and place the piston on the detection station 2. The mechanical arm structure 4 is a mature existing technology and will not be described in detail in this embodiment.

[0055] The flipping mechanism includes a shaft 20, a flipping block 21, a drive motor 22, and two mounting blocks 23. The two mounting blocks 23 are symmetrically arranged front to back and fixed to the top of the control box 3. The shaft 20 is rotatably connected between the two mounting blocks 23 via a bearing. One end of the flipping block 21 is fixedly connected to the shaft 20, and the other end of the flipping block 21 is mounted with a third pneumatic gripper 48 corresponding to the inspection station 2. The drive motor 22 is mounted on the mounting blocks 23 to drive the shaft 20 in rotation.

[0056] The automatic unloading part includes a second conveying structure and a clamping structure.

[0057] The clamping structure includes a mounting frame 24, a first pneumatic clamping jaw 25, a translation structure and a lifting structure.

[0058] Mounting frame 24 is located to the right of the inspection equipment body. Mounting frame 24 includes a crossbeam 26 and several support rods 27 fixed to the bottom end of crossbeam 26. Crossbeam 26 is located at a higher height than the flip structure. The left end of crossbeam 26 extends directly above inspection station 2.

[0059] The translation structure includes a first motor 28, a screw rod 29, a guide rail 30, a nut seat 31, and two fixed blocks 32. The two fixed blocks 32 are respectively fixed to the left and right sides of the top of the crossbeam 26. The screw rod 29 is rotatably connected between the two fixed blocks 32 via a rotating shaft. The guide rail 30 is fixedly connected between the two fixed blocks 32. The nut seat 31 is threadedly mounted on the outside of the screw rod 29 and slidably mounted on the outside of the guide rail 30. A cavity 33 is defined within the nut seat 31. The first motor 28 is mounted on the fixed blocks 32 to drive the screw rod 29 to rotate.

[0060] The lifting mechanism includes a second motor 34, a mounting block 35, a sleeve 36, a gear 37, and a lifting rod 38. The mounting block 35 is fixed to one side of the nut seat 31. The mounting block 35 is offset from the crossbeam 26 and located directly above the inspection station 2. A through slot 39 is defined in the mounting block 35, extending vertically from top to bottom. The top end of the lifting rod 38 is located above the mounting block 35. The bottom end of the lifting rod 38 extends vertically downward through the through slot 39 and connects to the first pneumatic gripper 25. The first pneumatic gripper 25 corresponds to the inspection station 2. A trapezoidal rail 40 and a gear rod 41 are fixed to the lifting rod 38, extending in the same direction as the lifting rod 38. The sleeve 36 is fixed to the wall of the through slot 39 and slides over the outside of the trapezoidal rail 40. The gear 37 is rotatably connected to the through slot 39 via a bearing and meshes with the gear rod 41. The second motor 34 is mounted within the cavity 33. The output shaft of the second motor 34 extends into the through slot 39 to drive the gear 37 to rotate.

[0061] The second conveying structure includes a second bracket 42 and a second conveyor belt device 43. The second bracket 42 is located on the right side of the detection equipment body. The second conveyor belt device 43 is installed at the top of the second bracket 42 and extends horizontally front and back. The second conveyor belt device 43 is a mature existing technology and will not be described in detail here. The top of the second bracket 42 is provided with a second photoelectric sensor 44, a third photoelectric sensor 45 and a second baffle 46 from back to front. The second photoelectric sensor 44 is located at the rear side of the top of the second bracket 42 and corresponds to the position of the first pneumatic clamp 25. The second baffle 46 is located at the front side of the top of the second bracket 42 and above the second conveyor belt device 43. The third photoelectric sensor 45 is located between the second photoelectric sensor 44 and the second baffle 46 and is close to the second baffle 46. The second photoelectric sensor 44 and the third photoelectric sensor 45 are both electrically connected to the first conveyor belt device 6 through a PLC controller.

[0062] Additionally, rubber pads are fixed to the inner sidewall of the notch 13 and the rear sidewall of the second baffle 46. The provision of the rubber pads can prevent the piston from being damaged due to collision with the first baffle 12 and the second baffle 46.

[0063] An accordion-style dustproof folding cover 47 is fixed between the nut seat 31 and the two fixing blocks 32. It is mounted on the outside of the screw rod 29 and the guide rail 30. The accordion-style dustproof folding cover 47 expands and contracts as the nut seat 31 slides. The accordion-style dustproof folding cover 47 can effectively protect the screw rod 29 and the guide rail 30 without affecting the movement of the nut seat 31.

[0064] Working principle:

[0065] First, adjust the distance between the two limiting rods 10 according to the size of the lower portion 50 of the piston. Loosen the tightening bolt 9, and the extension rod 8 can slide on the fixing seat 7, and the extension rod 8 drives the limiting rod 10 to move. After adjusting to the appropriate position, tighten the tightening bolt 9.

[0066] The staff then places the piston in an upright position with the upper portion 49 facing upward on the first conveyor belt device 6, and positions the lower portion 50 of the piston between the two limit rods 10 and aligned with the first photoelectric sensor 11. The first photoelectric sensor 11 senses a signal and transmits it to the PLC controller, which then starts the first conveyor belt device 6.

[0067] The first conveyor belt assembly 6 drives the piston to the right. As the piston moves rightward along the first conveyor belt assembly 6, the two first limiting rods 10 limit the piston, preventing it from tilting and ensuring that it moves horizontally to the right along the gap in an upright position. This prevents friction from damaging the top surface of the piston.

[0068] When the piston is stopped by the first baffle 12, the lower portion 50 of the piston is located in the notch 13. The notch 13 can position the piston and prevent it from tilting. At this time, the proximity sensor senses a signal and transmits it to the PLC controller, which shuts down the first conveyor belt device 6.

[0069] Then, the two short cylinders 15 are started simultaneously. The piston rods of the short cylinders 15 extend, driving the push blocks 16 to move toward the piston. After the two push blocks 16 clamp the piston, the piston rods of the short cylinders 15 retract, and the push blocks 16 return to their original positions. The push blocks 16 can correct the piston and prevent it from tilting.

[0070] Then, the long cylinder 18 is activated, and the piston rod of the long cylinder 18 extends, driving the second pneumatic clamp 19 to move downward. The second pneumatic clamp 19 then clamps the side wall of the upper portion 49 of the piston. The piston rod of the long cylinder 18 is then retracted, driving the piston upward, thereby removing the lower portion 50 of the piston from the notch 13.

[0071] Then the robotic arm structure 4 runs over and clamps the lower part 50 of the piston, and then flips the piston through the robotic arm structure 4 so that the piston is in an inverted state with the upper part 49 facing downward. Then, the piston is placed in an inverted state with the upper part 49 facing downward into the inspection station 2 through the robotic arm structure 4, and the inspection station 2 inspects the piston. Since the top surface of the upper part 49 of the piston is a plane, and the bottom surface of the lower part 50 of the piston is an irregular arc surface, placing the piston in an inverted state into the inspection station 2 can ensure the stability of the piston during inspection and avoid shaking during inspection. And by setting the clamping part adjustment structure, the robotic arm structure 4 can clamp the lower part 50 of the piston and then flip and place the piston. Different from the situation where the robotic arm structure 4 directly clamps the side wall of the upper part 49 of the piston and then flips and places the piston, when the robotic arm structure 4 clamps the lower part 50 of the piston and then flips and places the piston, the distance between the top surface of the upper part 49 of the piston and the clamping part of the robotic arm structure 4 is larger, so that the piston can be placed in an inverted state in the inspection station 2 more conveniently, avoiding damage to the top surface of the upper part 49 of the piston when the piston is placed in the inspection station 2 in an inverted state.

[0072] After the inspection is complete, the second motor 34 is activated, rotating the gear 37. This in turn drives the meshing gear rod 41 downward. The gear rod 41 drives the lifting rod 38 downward along the through slot 39. The lifting rod 38 then drives the trapezoidal guide rail 40 downward along the sleeve 36, ensuring the stability of the lifting rod 38 during its movement. This in turn drives the first pneumatic gripper 25 downward.

[0073] Then the lower part 50 of the piston is clamped by the first pneumatic clamp jaw 25, and then the output shaft of the second motor 34 is reversed to rotate, so that the first pneumatic clamp jaw 25 is driven by the lifting structure to move upward and reset, and the piston is driven to move upward. At this time, the piston is in an inverted state with the upper part 49 downward.

[0074] Then the first motor 28 is started to drive the screw rod 29 to rotate. The screw rod 29 drives the nut seat 31 to form a trend of rotating and moving to the right. At the same time, since the nut seat 31 is slidably sleeved outside the guide rail 30, the guide rail 30 limits the nut seat 31 in the circumferential direction, and the rotating trend of the nut seat 31 is offset, so that the nut seat 31 only moves to the right along the screw rod 29 and the guide rail 30. The nut seat 31 drives the mounting block 35 to move to the right. The mounting block 35 drives the lifting rod 38 to move to the right, the lifting rod 38 drives the first pneumatic clamp jaw 25 to move to the right, and the first pneumatic clamp jaw 25 drives the piston to move to the right until the piston is located directly above the third pneumatic clamp jaw 48.

[0075] Then the completed piston is moved downward by the lifting structure. After the completed piston is placed at the top end of the control box 3 and located in the third pneumatic clamp jaw 48, the first pneumatic clamp jaw 25 is loosened, and then the first pneumatic clamp jaw 25 is moved upward by the lifting structure. At this time, the piston is still in an inverted state with the upper part 49 downward. Then the third pneumatic clamp jaw 48 is started to clamp the upper part 49 of the piston. Then the driving motor 22 is started to drive the shaft rod 20 to rotate, the shaft rod 20 drives the overturning block 21, the overturning block 21 drives the third pneumatic clamp jaw 48 to overturn, and the third pneumatic clamp jaw 48 drives the piston to overturn, so that the piston is placed in a normal state with the upper part 49 upward at the top end of the control box 3. Then the first pneumatic clamp jaw 25 is moved to the upper part of the piston by the translation structure, and then the first pneumatic clamp jaw 25 is moved downward by the lifting structure. After the first pneumatic clamp jaw 25 clamps the side wall of the upper part 49 of the piston, the piston is placed on the second conveying belt device 43 by the translation structure and the lifting structure.

[0076] After the piston is placed on the second conveying belt device 43, the first pneumatic clamp jaw 25 is loosened, and the first pneumatic clamp jaw 25 is reset by the lifting structure and the translation structure. At the same time, the second photoelectric sensor 44 senses the signal and transmits the signal to the PLC controller, and the PLC controller starts the second conveying belt device 43. The piston with the upper part 49 upward moves with the second conveying belt device 43 to avoid damage to the top end of the upper part 49. When the piston moves out of the mounting frame 24 and is blocked by the second baffle 46, the third photoelectric sensor 45 senses the signal and transmits the signal to the PLC controller, and the PLC controller stops the second conveying belt device 43. The worker can take the completed piston from the second conveying belt device 43

[0077] The present invention enables automatic loading and unloading of pistons, improving work efficiency, reducing labor intensity, and saving time and effort. Furthermore, the provision of the limiting rod 10 and the notch 13 ensures that each piston is positioned within the inspection station 2 at the same angle, improving the reliability of the inspection data. Furthermore, the piston top surface is protected from friction with the first conveyor belt assembly 6 and the second conveyor belt assembly 43.

[0078] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0079] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0080] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0081] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An automatic loading and unloading device for ultrasonic testing equipment, comprising a testing equipment body, wherein the testing equipment body comprises a support frame (1), a testing station (2) mounted on the left side of the top of the supporting frame (1), and a control box (3) mounted on the right side of the top of the supporting frame (1), characterized in that: It also includes automatic loading part and automatic unloading part; The automatic loading part includes a first conveying structure and a mechanical arm structure (4); The first conveying structure comprises a first bracket (5) and a first conveyor belt device (6), wherein the first bracket (5) is located on the left side of the detection device body, the first conveyor belt device (6) is installed at the top of the first bracket (5) and extends horizontally to the left and right, a plurality of fixing seats (7) are fixed on both the front and rear sides of the first bracket (5), and the tops of the plurality of fixing seats (7) are installed with extension rods (8), the other ends of the plurality of extension rods (8) extend to the top of the first conveyor belt device (6), and a limiting rod (10) whose extension direction is consistent with that of the first conveyor belt device (6) is fixed therebetween, and the two limiting rods (10) are symmetrically arranged front and back, and a gap is reserved therebetween for the lower part of the piston (50) to pass through, a first photoelectric sensor (11) is installed on the left side of the top of the first bracket (5), a first baffle (12) located above the first conveyor belt device (6) is fixed on the right side of the top of the first bracket (5), a notch (13) corresponding to the gap is opened at the left end of the first baffle (12), a proximity sensor (14) is installed on the first baffle (12), and the first photoelectric sensor (11) and the proximity sensor (14) are both electrically connected to the first conveyor belt device (6) through a PLC controller; The mechanical arm structure (4) is located between the first bracket (5) and the detection device body, and the mechanical arm structure (4) is used to clamp the piston in the notch (13) and place the piston on the detection station (2); The automatic unloading part includes a second conveying structure and a clamping structure; The clamping structure includes a mounting frame (24), a first pneumatic clamp (25), a translation structure and a lifting structure. The mounting frame (24) is located on the right side between the detection device body. The mounting frame (24) includes a crossbeam (26) and a plurality of support rods (27) fixed to the bottom end of the crossbeam (26). The height of the crossbeam (26) is higher than the detection device body. The left end of the crossbeam (26) extends to the top of the detection station (2). The translation structure includes a first motor (28), a screw rod (29), a guide rail (30), a nut seat (31) and two The two fixing blocks (32) are respectively fixed to the left and right sides of the top of the crossbeam (26); the screw rod (29) is rotatably connected between the two fixing blocks (32) through a rotating shaft; the guide rail (30) is fixedly connected between the two fixing blocks (32); the nut seat (31) is sleeved on the outside of the screw rod (29) in a threaded connection manner, and is sleeved on the outside of the guide rail (30) in a sliding connection manner; a cavity (33) is opened inside the nut seat (31); the first motor (28) is mounted on the fixing block (32) for The screw rod (29) is driven to rotate. The lifting structure includes a second motor (34), a mounting block (35), a sliding sleeve (36), a gear (37) and a lifting rod (38). The mounting block (35) is fixed to one side of the nut seat (31). The mounting block (35) is staggered with the crossbeam (26) and is located directly above the detection station (2). A through slot (39) is provided on the mounting block (35) and runs vertically through the through slot (39). The top end of the lifting rod (38) is located above the mounting block (35). The bottom end of the lifting rod (38) passes vertically downward through the through slot (39). 39) and is connected to the first pneumatic clamp (25), a trapezoidal slide rail (40) and a gear rod (41) extending in the same direction as the lifting rod (38) are fixed on the lifting rod (38), the sliding sleeve (36) is fixed on the groove wall of the through groove (39) and is slidably sleeved on the outside of the trapezoidal slide rail (40), the gear (37) is rotatably connected to the through groove (39) through a bearing and meshes with the gear rod (41), the second motor (34) is installed inside the cavity (33), and the output shaft of the second motor (34) penetrates into the through groove (39) to drive the gear (37) to rotate; The second conveying structure includes a second bracket (42) and a second conveyor belt device (43), the second bracket (42) is located on the right side of the detection equipment body, the second conveyor belt device (43) is installed on the top of the second bracket (42) and extends horizontally front and back, the top of the second bracket (42) is sequentially provided with a second photoelectric sensor (44), a third photoelectric sensor (45) and a second baffle (46) from back to front, the second photoelectric sensor (44) is located at the rear side of the top of the second bracket (42) and corresponds to the position of the first pneumatic clamp (25), the second baffle (46) is located at the front side of the top of the second bracket (42) and above the second conveyor belt device (43), the third photoelectric sensor (45) is located between the second photoelectric sensor (44) and the second baffle (46) and close to the second baffle (46), and the second photoelectric sensor (44) and the third photoelectric sensor (45) are both electrically connected to the first conveyor belt device (6) through a PLC controller.

2. The automatic loading and unloading device for ultrasonic testing equipment according to claim 1, characterized in that: The first conveying structure also includes a clamping position adjustment structure, which includes a fixed frame (17), a long cylinder (18) and a second pneumatic clamp (19). The fixed frame (17) is fixed to the top of the first bracket (5), and the long cylinder (18) is installed on the top of the fixed frame (17). The piston rod of the long cylinder (18) is vertically downward and connected to the second pneumatic clamp (19). The second pneumatic clamp (19) is located directly above the notch (13).

3. The automatic loading and unloading device for ultrasonic testing equipment according to claim 2, characterized in that: The top of the control box (3) is provided with a flip structure, and the flip structure includes a shaft (20), a flip block (21), a drive motor (22) and two mounting seats (23). The two mounting seats (23) are symmetrically arranged front and back. The shaft (20) is rotatably connected between the two mounting seats (23) through a bearing. One end of the flip block (21) is fixedly connected to the shaft (20), and the other end of the flip block (21) is provided with a third pneumatic clamp (48) corresponding to the first pneumatic clamp (25). The drive motor (22) is installed on the mounting seat (23) to drive the shaft (20) to rotate.

4. The automatic loading and unloading device for ultrasonic testing equipment according to claim 1, characterized in that: One end of the extension rod (8) that faces away from the limiting rod (10) passes through the fixing seat (7) in a sliding connection manner, and a tightening bolt (9) for tightening the extension rod (8) is provided on the fixing seat (7).

5. The automatic loading and unloading device for ultrasonic testing equipment according to claim 1, characterized in that: Short cylinders (15) are also installed on both the front and rear sides of the first bracket (5), and the two short cylinders (15) are symmetrically arranged front and back. The piston rods of the two short cylinders (15) extend above the first conveyor belt device (6) and are fixed with push blocks (16). The push blocks (16) are located between the first conveyor belt device (6) and the first baffle (12).

6. The automatic loading and unloading device for ultrasonic testing equipment according to claim 1, characterized in that: Rubber pads are fixed on the inner side wall of the notch (13) and the rear side wall of the second baffle (46).

7. The automatic loading and unloading device for ultrasonic testing equipment according to claim 1, characterized in that: An accordion-type dustproof folding cover (47) sleeved on the outside of the screw rod (29) and the guide rail (30) is fixed between the nut seat (31) and the two fixing blocks (32).

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