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. Automatic feeding and discharging of pistons can be achieved, the working efficiency is improved, the labor intensity is reduced, and more time and labor are saved. 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 invention 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 parts of the engine and the heart of the engine. At present, the automobile piston is developing towards high strength, high wear resistance, high precision, low expansion, light weight and structural combination. The piston generally includes 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 of the upper part.

[0003] In the prior art, in order to solve the problems of poor accuracy, low work efficiency, and time-consuming and labor-intensive manual testing, ultrasonic testing equipment is generally used for ultrasonic nondestructive testing. Ultrasonic testing equipment studies the reflection, transmission, and scattered waves generated by the interaction between ultrasonic waves and the device under test, and performs macroscopic defect detection on the piston.

[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 cabinet; a piston tray, a probe adjustment column, a first ultrasonic receiving probe, an ultrasonic transmitting probe, and a second ultrasonic receiving probe are arranged in the detection liquid tank, a slide groove is arranged on the bottom plate of the detection liquid tank, a slider is arranged 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 arranged on the bottom plate of the equipment cabinet, the output of the motor is pumped through a through hole and fixedly connected to the piston tray, 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] The Chinese patent with the authorization announcement number CN210322903U discloses a piston ultrasonic flaw detection fixture, including a box for placing a flaw detection solution, a fixture platform is arranged in the box, three non-collinear fixings for fixing the piston are arranged on the fixture platform, and at least one of the three fixings is movable, and a probe for ultrasonic flaw detection of the piston is arranged on the fixture platform. When it is necessary to fix pistons of different diameters, the user only needs to adjust the position of the fixings so that the relative positions of the three fixings match the piston, fix the piston, and then use the probe to perform ultrasonic flaw detection on the piston for defects in the weld area. The piston ultrasonic flaw detection fixture provided by the utility model has a simple structure, and the detection process is convenient, fast and efficient, which improves the detection efficiency and reduces the labor intensity and operation difficulty of workers. At the same time, by adjusting the position of the fixings, the detection of pistons of different models and sizes can be realized, which reduces the production cost.

[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. Summary of the invention

[0008] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an automatic loading and unloading device for ultrasonic testing equipment, aiming to achieve the technical effects of automatic loading and unloading, improving work efficiency, reducing labor intensity, and saving time and labor.

[0009] An automatic loading and unloading device for ultrasonic testing equipment, comprising a testing equipment body, the testing equipment body comprising a support frame, a testing station installed on the left side of the top end of the support frame, and a control box installed on the right side of the top end of the support frame, and also comprising 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 comprises 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 the plurality of fixing seats, the other ends of the plurality of extension rods extend to the top of the first conveyor belt device and a limiting rod is fixed therebetween in the extension direction consistent with the first conveyor belt device, the two limiting rods are symmetrically arranged front and back, and a gap is reserved therebetween 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, a first baffle plate located above the first conveyor belt device is fixed on the right side of the top of the first bracket, a notch corresponding to the gap is opened at the left end of the first baffle plate, a proximity sensor is installed on the first baffle plate, 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 the mechanical arm structure 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 crossbeam and a plurality of support rods fixed to the bottom end of the crossbeam, the height of the crossbeam is higher than the detection equipment body, the left end of the crossbeam 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 crossbeam, the screw rod is rotatably connected between the two fixed blocks by 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 Installed on the fixed block to drive the screw to rotate, 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 that runs 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 is slidably mounted on the outside of the trapezoidal slide rail, the gear is rotatably connected to 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 on the top end of the second bracket and extends horizontally front and back, and the top end 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 on the rear side of the top end of the second bracket and corresponds to the position of the first pneumatic clamp, the second baffle is located on the front side of the top end 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, and 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 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 to prevent the piston from tilting, and ensure that the piston moves horizontally to the right along the interval in an upright state. When the piston is blocked by the first baffle, the lower part of the piston is located in the notch, and the setting of the notch can position the piston to 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] Then, the piston is clamped out of the notch by the mechanical arm structure and turned over, so that the piston is placed in the inspection station in an inverted state with the upper part facing downward, and the piston is inspected. Since the top surface of the upper part of the piston is a flat surface, and the bottom surface of the lower part of the piston is an irregular arc surface, placing the piston in the inspection station in an inverted state can ensure the stability of the piston during inspection and avoid shaking during inspection.

[0018] After the inspection is completed, the first pneumatic clamp is driven downward by the lifting structure. The second motor is started, and the second motor drives the gear to rotate. The gear drives the gear rod meshing with it to move downward. The gear rod drives the lifting rod to move downward along the through slot. The lifting rod drives the trapezoidal slide rail to move downward along the sliding sleeve, thereby ensuring the stability of the lifting rod during lifting. The lifting rod drives the first pneumatic clamp to move downward.

[0019] The piston is then clamped by the first pneumatic clamp, and then the output shaft of the second motor is 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 to the right through the translation structure. The first motor is started, and the first motor drives the screw to rotate. The screw drives the nut seat to form a tendency to move to the right while rotating. At the same time, since the nut seat is slidingly sleeved on the outside of the guide rail, the guide rail acts as a circumferential limit on the nut seat, and the tendency of the nut seat to rotate is offset. Therefore, the nut seat only moves to the right along the screw and the guide rail. The nut seat drives the mounting block to move to the right. The mounting block drives the lifting rod to move to the right, and the lifting rod drives the first pneumatic clamp to move to the right. The first pneumatic clamp drives the piston to move to the right until the piston is directly above the second conveyor belt device and corresponds to the second photoelectric sensor.

[0021] Then start the second motor again to move the lifting rod and the first pneumatic clamp downward until the piston is placed on the second conveyor belt device. After the piston is placed on the second conveyor belt device, the first pneumatic clamp releases the piston and resets the first pneumatic clamp 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 conveyor belt device. The piston moves forward with the second conveyor belt device and moves 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 turns off the second conveyor belt device. The staff can remove the piston that has been tested from the second conveyor belt device.

[0022] The present invention can realize automatic loading and unloading of pistons, improve work efficiency, reduce labor intensity, and save time and labor. Moreover, through the setting of the limit rod and the notch, each piston is placed in the detection station at the same angle, thereby improving the reliability of the detection data.

[0023] Further configuration of the present invention: the first conveying structure also includes a clamping position adjustment structure, the clamping position adjustment structure includes a fixed frame, a long cylinder and a second pneumatic clamp, the fixed frame is fixed to the top of the first bracket, the long cylinder is installed on the top of the fixed frame, the piston rod of the long cylinder is vertically downward and connected to the second pneumatic clamp, and the second pneumatic clamp is located directly above the notch.

[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 running, the long cylinder is started, and the piston rod of the long cylinder is extended, driving the second pneumatic clamp to move downward. Then the upper side wall of the piston is clamped by the second pneumatic clamp. Then the piston rod of the long cylinder is contracted to drive the piston to move upward, so that the lower part of the piston is moved 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. Then the piston is 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. Different from 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 spacing distance between the upper top surface of the piston and the clamping claw part of the robotic arm structure is larger, so the piston can be placed in the inspection station more conveniently, avoiding 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 arranged at the top of the control box, and the flip structure includes an axis rod, a flip block, a drive motor and two mounting seats, the two mounting seats are symmetrically arranged front and back, the axis rod is rotatably connected between the two mounting seats through a bearing, one end of the flip block is fixedly connected to the axis rod, and the other end of the flip block is equipped with a third pneumatic clamp corresponding to the first pneumatic clamp, and the drive motor is installed on the mounting seat to drive the axis rod to rotate.

[0026] By adopting the above technical solution, when the first pneumatic clamp clamps the piston that has been tested, the first pneumatic clamp clamps the lower part of the piston, and the piston is in a state of the upper part facing downward. After moving upward through the lifting structure, the piston that has been tested is first moved to the top of the clamping position adjustment structure through the horizontal moving structure, so that the piston that has been tested is located directly above the third pneumatic clamp. Then the piston that has been tested is moved downward through the lifting structure, and after the piston that has been tested is placed at the top of the control box and is located in the third pneumatic clamp, the first pneumatic clamp is released, and then the first pneumatic clamp is moved upward through the lifting structure. At this time, the piston is still in a state of the upper part facing downward. Then the third pneumatic clamp is started, and the third pneumatic clamp clamps the upper part of the piston. Then the drive motor is started, the drive motor drives the shaft rod to rotate, the shaft rod drives the flip block, the flip block drives the third pneumatic clamp to flip, and the third pneumatic clamp drives the piston to flip, so that the piston is placed at the top of the control box with the upper part facing upward. Then, the first pneumatic clamp is moved to the top of the piston by the translation structure, and then the first pneumatic clamp is moved downward by the lifting structure. After the first pneumatic clamp clamps the upper side wall of the piston, the piston is placed on the second conveyor belt device by the translation structure and the lifting structure. The piston moves with the second conveyor belt device with the upper part facing upward to avoid friction damage to the top of the upper part.

[0027] A further configuration of the present invention is that an end of the extension rod away from the limiting rod passes through the fixing seat in a sliding connection manner, and a tightening bolt for tightening the extension rod is provided on the fixing seat.

[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, so as to adjust the interval between the two limit rods according to the size of the lower part of the piston.

[0029] A further configuration of the present invention is as follows: short cylinders are installed on both the front and rear sides of the first bracket, 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, and the push blocks are located between the first conveyor belt device and the first baffle.

[0030] By adopting the above technical solution, when the piston enters the notch and is blocked by the first baffle, the two short cylinders are started at the same time. The piston rod of the short cylinder extends to drive the push block to move toward the piston. After the two push blocks clamp the piston, the piston rod of the short cylinder contracts and the push block is reset. The push block can correct the piston and prevent the piston from tilting.

[0031] A further configuration of the present invention is that rubber pads are fixed to 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 plate and the second baffle plate.

[0033] A further configuration of the present invention is that 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 is extended and retracted 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 present invention has the following beneficial effects:

[0036] 1. An automatic loading and unloading device for ultrasonic testing equipment. The present invention can realize automatic loading and unloading of pistons, improve work efficiency, reduce labor intensity, and save time and effort. And through the setting of the limit rod and the notch, each piston is placed in the testing station at the same angle, which improves the reliability of the test data.

[0037] 2. By setting the clamping position adjustment structure and the flipping structure, the top surface of the upper part of the piston can be prevented from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0040] Figure 3 for Figure 1 The 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 The enlarged view of point D in the middle;

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

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

[0045] Figure 8 A partial cross-sectional view in the side view direction of a beam and a translation structure in an automatic loading and unloading device for ultrasonic testing equipment of the present invention;

[0046] Fig. 9 The present invention is a top view of a flip structure used in an automatic loading and unloading device of ultrasonic testing equipment.

[0047] Figure numerals: 1, support frame; 2, detection station; 3, control box; 4, mechanical 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. fixing block; 33. cavity; 34. second motor; 35. mounting block; 36. sliding 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 described embodiments 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 creative work are within the scope of protection of the present invention.

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

[0050] The detection device body comprises 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 prior art and will not be described in detail here.

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

[0052] The first conveying structure includes a first bracket 5, a first conveying 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 installed at 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 fixed seats 7 are fixed on both sides of the front and back of the first bracket 5. The tops of several fixed seats 7 are slidably penetrated with extension rods 8. The fixed seats 7 are provided with tightening bolts 9 for tightening the extension rods 8. The other ends of several extension rods 8 extend to the top of the first conveyor belt device 6 and a limit rod 10 is fixed between them with an extension direction consistent with the first conveyor belt device 6. The two limit rods 10 are symmetrically arranged front and back, and a gap is reserved between them for the lower part 50 of the piston 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 corresponding to the notch 13 is installed 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 through a PLC controller. Short cylinders 15 are also installed on both sides of the front and rear 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 prior art and will not be described in detail in this embodiment.

[0055] The flipping structure includes a shaft 20, a flipping block 21, a driving motor 22 and two mounting seats 23. The two mounting seats 23 are symmetrically arranged front and back and fixed to the top of the control box 3. The shaft 20 is rotatably connected between the two mounting seats 23 through 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 installed with a third pneumatic clamp 48 corresponding to the detection station 2. The driving motor 22 is installed on the mounting seat 23 to drive the shaft 20 to rotate.

[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] The mounting frame 24 is located on the right side between the detection equipment bodies. 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 flip structure. The left end of the crossbeam 26 extends to the top of the detection 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 through a rotating shaft. The guide rail 30 is fixedly connected between the two fixed 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 fixed block 32 to drive the screw rod 29 to rotate.

[0060] The lifting structure 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 staggered with the cross beam 26 and is located directly above the detection station 2. A through slot 39 is provided on the mounting block 35 and runs vertically upward and downward. The top of the lifting rod 38 is located above the mounting block 35. The bottom of the lifting rod 38 passes vertically downward through the through slot 39 and is connected to the first pneumatic clamp 25. The first pneumatic clamp 25 corresponds to the detection station 2. A trapezoidal slide rail 40 and a gear rod 41 extending in the same direction are fixed to the lifting rod 38. The sleeve 36 is fixed to the groove wall of the through slot 39 and is slidably sleeved on the outside of the trapezoidal slide rail 40. The gear 37 is rotatably connected to the through slot 39 through a bearing and meshes with the gear rod 41. The second motor 34 is installed inside the cavity 33. The output shaft of the second motor 34 penetrates 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 device 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 prior art and is not 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 side wall of the notch 13 and the rear side wall of the second baffle plate 46. The provision of the rubber pads can prevent the piston from being damaged due to collision with the first baffle plate 12 and the second baffle plate 46.

[0063] An accordion-type dustproof folding cover 47 is fixed between the nut seat 31 and the two fixing blocks 32 and is sleeved on the outside of the screw rod 29 and the guide rail 30. The accordion-type dustproof folding cover 47 is extended and retracted as the nut seat 31 slides, and the accordion-type 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 spacing between the two limit rods 10 according to the size of the lower part 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 limit rod 10 to move. After adjusting to a suitable position, tighten the tightening bolt 9.

[0066] Then the staff places the piston on the first conveyor belt device 6 in a normal state with the upper part 49 facing upward, and makes the lower part 50 of the piston located between the two limit rods 10 and corresponding to the first photoelectric sensor 11. The first photoelectric sensor 11 senses the signal and transmits the signal to the PLC controller, which starts the first conveyor belt device 6.

[0067] The first conveyor belt device 6 drives the piston to move to the right. When the piston moves to the right with the first conveyor belt device 6, the two first limit rods 10 can limit the piston to prevent the piston from tilting, and ensure that the piston moves to the right along the interval horizontally in an upright state. The top surface of the piston will not be damaged by friction.

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

[0069] Then, two short cylinders 15 are started simultaneously. The piston rods of the short cylinders 15 extend to drive 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 contract and the push blocks 16 are reset. The push blocks 16 can correct the piston and prevent the piston from tilting.

[0070] Then, the long cylinder 18 is started, and the piston rod of the long cylinder 18 is extended, driving the second pneumatic clamp 19 to move downward. Then, the side wall of the upper part 49 of the piston is clamped by the second pneumatic clamp 19. Then, the piston rod of the long cylinder 18 is retracted, driving the piston to move upward, so that the lower part 50 of the piston is moved out of the notch 13.

[0071] Then, the mechanical arm structure 4 runs over to clamp the lower part 50 of the piston, and then flips the piston through the mechanical 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 the detection station 2 in an inverted state with the upper part 49 facing downward through the mechanical arm structure 4, and the detection station 2 detects 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 the detection station 2 in an inverted state can ensure the stability of the piston during detection and avoid shaking during detection. And through the setting of the clamping part adjustment structure, the mechanical arm structure 4 can clamp the lower part 50 of the piston and then flip and place the piston. Different from the case where the robot arm structure 4 directly clamps the side wall of the upper part 49 of the piston and then flips over and places the piston, when the robot arm structure 4 clamps the lower part 50 of the piston and then flips over and places the piston, the spacing distance between the top surface of the upper part 49 of the piston and the clamping claw part of the robot 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 detection is completed, the second motor 34 is started first, and the second motor 34 drives the gear 37 to rotate. The gear 37 drives the gear rod 41 meshing therewith to move downward. The gear rod 41 drives the lifting rod 38 to move downward along the through slot 39. The lifting rod 38 drives the trapezoidal slide rail 40 to move downward along the sliding sleeve 36, thereby ensuring the stability of the lifting rod 38 during lifting. The lifting rod 38 drives the first pneumatic clamp 25 to move downward.

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

[0074] Then the first motor 28 is started, and the first motor 28 drives the screw rod 29 to rotate. The screw rod 29 drives the nut seat 31 to form a tendency to move rightward while rotating. At the same time, since the nut seat 31 is slidably sleeved on the outside of the guide rail 30, the guide rail 30 plays a circumferential limiting role on the nut seat 31, and the tendency of the nut seat 31 to rotate is offset. Therefore, 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 25 to move to the right, and the first pneumatic clamp 25 drives the piston to move to the right until the piston is located directly above the third pneumatic clamp 48.

[0075] Then, the piston that has been tested is moved downward by the lifting structure. After the piston that has been tested is placed at the top of the control box 3 and is located in the third pneumatic clamp 48, the first pneumatic clamp 25 is released, and then the first pneumatic clamp 25 is moved upward by the lifting structure. At this time, the piston is still in an inverted state with the upper part 49 facing downward. Then the third pneumatic clamp 48 is started, and the third pneumatic clamp 48 clamps the upper part 49 of the piston. Then, the drive motor 22 is started, and the drive motor 22 drives the shaft 20 to rotate, and the shaft 20 drives the flip block 21, and the flip block 21 drives the third pneumatic clamp 48 to flip, and the third pneumatic clamp 48 drives the piston to flip, so that the piston is placed in a normal state with the upper part 49 facing upward at the top of the control box 3. Then, the first pneumatic clamp 25 is moved to the top of the piston by the translation structure, and then the first pneumatic clamp 25 is moved downward by the lifting structure. After the first pneumatic clamp 25 clamps the side wall of the upper portion 49 of the piston, the piston is placed on the second conveyor belt device 43 through the translation structure and the lifting structure.

[0076] After the piston is placed on the second conveyor belt device 43, the first pneumatic clamp 25 releases the piston and resets the first pneumatic clamp 25 through 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 conveyor belt device 43. The piston moves with the second conveyor belt device 43 with the upper part 49 facing upward to avoid friction damage to the top of its upper part 49. When the piston moves out of the mounting bracket 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 turns off the second conveyor belt device 43. The staff can remove the inspected piston from the second conveyor belt device 43.

[0077] The present invention can realize automatic loading and unloading of pistons, improve work efficiency, reduce labor intensity, and save time and labor. Moreover, by setting the limit rod 10 and the notch 13, each piston is placed in the detection station 2 at the same angle, thereby improving the reliability of the detection data. Moreover, the top surface of the piston will not be damaged by friction between the first conveyor belt device 6 and the second conveyor belt device 43.

[0078] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0079] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0080] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0081] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes 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, the testing equipment body comprising a support frame (1), a testing station (2) installed on the left side of the top of the supporting frame (1), and a control box (3) installed on the right side of the top of the supporting frame (1), characterized in that: It also includes an automatic loading part and an automatic unloading part; The automatic loading part comprises 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 extension rods (8) are installed on the tops of the plurality of fixing seats (7), and 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 end 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 end 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 comprises 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) comprises 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 comprises 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 cross beam (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 lifting structure comprises a second motor (34), a mounting block (35), a sleeve (36), a gear (37) and a lifting rod (38), wherein the mounting block (35) is fixed to one side of the nut seat (31), the mounting block (35) is staggered with the cross beam (26) and is located directly above the detection station (2), the mounting block (35) is provided with a through slot (39) which runs vertically through the through slot (39), the top end of the lifting rod (38) is located above the mounting block (35), and the bottom end of the lifting rod (38) passes vertically downward through the through slot (39). 39) and connected to the first pneumatic clamp (25), the lifting rod (38) is fixed with a trapezoidal slide rail (40) and a gear rod (41) extending in the same direction as the lifting rod (38), the sliding sleeve (36) is fixed to the groove wall of the through groove (39) and the sliding sleeve is arranged 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 comprises a second bracket (42) and a second conveyor belt device (43). The second bracket (42) is located on the right side of the detection device body. The second conveyor belt device (43) is installed at the top end of the second bracket (42) and extends transversely forward and backward. The top end of the second bracket (42) is provided with a second photoelectric sensor (44), a third photoelectric sensor (45) and a second baffle (46) in sequence from back to front. The second photoelectric sensor (44) is located at the rear side of the top end 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 end 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.

2. The automatic loading and unloading device for ultrasonic testing equipment according to claim 1 is 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), wherein the fixed frame (17) is fixed to the top of the first bracket (5), 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), and 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 is characterized in that: A flip structure is arranged at the top of the control box (3), and the flip structure comprises a shaft rod (20), a flip block (21), a drive motor (22) and two mounting seats (23). The two mounting seats (23) are arranged symmetrically front and back. The shaft rod (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 rod (20), and the other end of the flip block (21) is installed 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 rod (20) to rotate.

4. The automatic loading and unloading device for ultrasonic testing equipment according to claim 1 is characterized in that: One end of the extension rod (8) that is 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 is 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 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).

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 is 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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