Online ultrasonic detection device for defect expansion of bearing hole

Abstract

The utility model discloses an online ultrasonic detection device for defect expansion of a bearing hole, and relates to the technical field of ultrasonic detection devices. Comprising a workbench, a detection frame is fixed to the top end of the workbench, a rotating frame is rotatably connected to the inner wall of the top end of the detection frame, a first motor is fixed to the top end of the detection frame, the output end of the first motor penetrates through the detection frame and then is fixed to the rotating frame, a second lead screw is rotatably connected between the inner walls of the two sides of the rotating frame, and a second motor is fixed to one side of the rotating frame; the output end of the second motor penetrates through the rotating frame and then is fixed to a second lead screw, and the outer wall of the second lead screw is in threaded connection with a second sliding block. According to the utility model, the cylinder drives the ultrasonic detection head to move downwards to enter a bearing hole for detection, when a problem is detected, the ultrasonic detection head moves upwards, the second rack drives the gear to rotate, the gear rotates to drive the first rack to move downwards, and when the cylinder drives the ultrasonic detection head to move upwards to a position above the bearing hole, the ultrasonic detection head continues to move.

Description

TECHNICAL FIELD

[0001] The utility model relates to ultrasonic testing device technical field, specifically is a bearing hole defect extension on line ultrasonic testing device. BACKGROUND

[0002] Bearing is commonly used in mechanical equipment movement parts, can effectively reduce the rotation friction, thereby reducing mechanical wear, prolonging the practical life of machinery, therefore the quality of bearing directly influences the equipment operation stability, bearing hole defect extension on line ultrasonic testing device mainly for in the bearing production or use process, to bearing hole carries out real time ultrasonic detection to discover possible defect or damage. This equipment is usually used to monitor and evaluate the quality of bearing hole, ensure its reliability and safety in the use process, the existing bearing detection ultrasonic surface flaw detection device (announcement number: CN110988131B) has the following shortcomings in use:

[0003] When the bearing with problems is detected, manual marking is still needed, which consumes a lot of energy of the staff and is inconvenient, so the present patent proposes a bearing hole defect extension on line ultrasonic testing device to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a bearing hole defect extension on line ultrasonic testing device to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a bearing hole defect extension on line ultrasonic testing device, which comprises a workbench, a detection frame is fixed to the top end of the workbench, a rotating frame is rotatably connected to the inner wall of the top end of the detection frame, a first motor is fixed to the top end of the detection frame, the output end of the first motor penetrates through the detection frame and is fixed to the rotating frame, a second screw rod is rotatably connected between the inner walls of the two sides of the rotating frame, a second motor is fixed to one side of the rotating frame, the output end of the second motor penetrates through the rotating frame and is fixed to the second screw rod, a second sliding block is screwed to the outer wall of the second screw rod, a fixing rod is fixed between the inner walls of the two sides of the rotating frame, the fixing rod penetrates through the second sliding block, an installation rod is fixed to the bottom end of the second sliding block, a gas cylinder is fixed to the bottom end of the installation rod, a connecting piece is fixed to the output end of the gas cylinder, an ultrasonic detection head is installed at the bottom end of the connecting piece, a connecting frame is fixed to one side of the installation rod, a first rack is slidably connected to the side of the connecting frame close to the connecting piece, a fixed plate is fixed to the bottom end of the first rack, and a marking piece is fixed to one side of the fixed plate.

[0006] Preferably, a second rack is fixed to the top end of the connecting piece, an installation plate is fixed to one side of the connecting frame, a gear is rotatably connected to one end of the installation plate, and the gear is engaged with the first rack and the second rack.

[0007] Preferably, the top end of the workbench is provided with a first conveying frame and a second conveying frame, the first conveying frame is provided with a first conveying belt, and the second conveying frame is provided with a second conveying belt.

[0008] Preferably, one end of the workbench is provided with a clamping and pushing mechanism, the clamping and pushing mechanism comprises a fixed frame fixed at one end of the workbench, a first screw rod rotatably connected between the inner walls of the two sides of the fixed frame, a third motor fixed at one side of the fixed frame, and a first sliding block screwed to the outer wall of the first screw rod and connected with the output end of the third motor.

[0009] Preferably, the clamping and pushing mechanism further comprises a mounting frame fixed at the top end of the first sliding block, a first electric telescopic rod fixed at one end of the mounting frame, a connecting rod fixed at the telescopic end of the first electric telescopic rod, and a plurality of clamping blocks fixed at the end of the connecting rod close to the workbench.

[0010] Preferably, the top end of the workbench is fixed with a limiting plate, and the ultrasonic detection head is located between the limiting plate and the clamping blocks.

[0011] Compared with the prior art, the ultrasonic detection head of the utility model has the advantages that:

[0012] When the ultrasonic detection head moves downward into the bearing hole for detection, the second rack drives the gear to rotate when the ultrasonic detection head moves upward after detecting a problem, the gear drives the first rack to move downward, and the ultrasonic detection head continues to move upward when the cylinder drives the ultrasonic detection head to move upward above the bearing hole, so that the marking member moves downward and contacts the bearing, and marks the problem hole of the bearing, without the need for workers to spend energy to mark. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the clamping and pushing mechanism of the utility model;

[0015] Figure 3 It is a schematic diagram of the structure of the ultrasonic detection head of the utility model;

[0016] Figure 4 It is a schematic diagram of the structure of the marking member of the utility model.

[0017] In the figure: 1, workbench; 2, first conveying belt; 3, clamping and pushing mechanism; 301, fixed frame; 302, first screw rod; 303, first sliding block; 304, mounting frame; 305, first electric telescopic rod; 306, connecting rod; 307, clamping block; 4, detection frame; 5, second conveying belt; 6, rotating frame; 7, second screw rod; 8, fixed rod; 9, second sliding block; 10, mounting rod; 11, air cylinder; 12, connecting piece; 13, ultrasonic detection head; 14, connecting frame; 15, first rack; 16, gear; 17, second rack; 18, fixed plate; 19, marking piece. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] The bearing hole defect expansion online ultrasonic detection device is mainly used for real-time ultrasonic detection of bearing holes during bearing production or use, so as to find possible defects or damages. Such equipment is usually used for monitoring and evaluating the quality of bearing holes, ensuring the reliability and safety during use. The bearing hole defect expansion online ultrasonic detection device provided by the utility model detects the bearing hole through the ultrasonic detection head 13. During the detection process, when problems are detected, the signal is sent to the controller, the air cylinder 11 drives the ultrasonic detection head 13 to move upwards above the bearing, then the air cylinder 11 continues to move, the second rack 17 drives the gear 16 to rotate, the gear 16 drives the first rack 15 to move, so that the fixed plate 18 moves, drives the marking piece 19 to move to the position to be marked for stamping, so that the later workers can quickly find the problem holes on the bearing.

[0020] As Figures 1-4The utility model provides a technical scheme: a bearing hole defect extension on -line ultrasonic detection device, including work table 1, the top of work table 1 is fixed with detection frame 4, the top inner wall of detection frame 4 is rotatably connected with rotating frame 6, the top of detection frame 4 is fixed with first motor, the output of first motor is fixed with rotating frame 6 after the penetration of detection frame 4, the both sides inner wall of rotating frame 6 is rotatably connected with second screw rod 7, one side of rotating frame 6 is fixed with second motor, the output of second motor is fixed with second screw rod 7 after the penetration of rotating frame 6, the outer wall of second screw rod 7 is screwed with second sliding block 9, the both sides inner wall of rotating frame 6 is fixed with fixed rod 8, fixed rod 8 penetrates second sliding block 9, the bottom of second sliding block 9 is fixed with mounting rod 10, the bottom of mounting rod 10 is fixed with pneumatic cylinder 11, the output of pneumatic cylinder 11 is fixed with connecting piece 12, the bottom of connecting piece 12 is installed with ultrasonic detection head 13, and ultrasonic detection head 13 (also called transducer) will emit high frequency sound wave, and these sound waves can penetrate materials and propagate inside materials, when the sound wave meets the defects such as hole, crack, cavity, reflection or scattering will occur. The signal reflected back by the ultrasonic sensor is received, and by analyzing the reflected ultrasonic signal (such as time delay, amplitude change, frequency change, etc.), it can be judged whether there is a defect inside the material, the type, position and size information of the defect, one side of mounting rod 10 is fixed with connecting frame 14, first rack 15 is slidably connected to the side of connecting frame 14 close to connecting piece 12, the bottom of first rack 15 is fixed with fixed plate 18, one side of fixed plate 18 is fixed with marking part 19, marking part 19 is an ink stamp, which is used for stamping the defective hole. The top of connecting piece 12 is fixed with second rack 17, one side of connecting frame 14 is fixed with mounting plate, one end of mounting plate is rotatably connected with gear 16, and gear 16 is engaged with first rack 15 and second rack 17.

[0021] It should be noted that the ultrasonic detection head 13 is driven downward by the pneumatic cylinder 11 to enter the bearing hole for detection, when the problem is detected, the second rack 17 drives the gear 16 to rotate, the gear 16 drives the first rack 15 to move downward, the pneumatic cylinder 11 drives the ultrasonic detection head 13 to move upward, and when the ultrasonic detection head 13 moves to the upper side of the bearing hole, it continues to move, so that the marking part 19 moves downward and contacts with the bearing, and marks the problem hole on the bearing, without the need for staff to mark.

[0022] For example, Figure 1 And Figure 2As shown, the top end of the workbench 1 is provided with a first conveying frame and a second conveying frame, the first conveying frame is provided with a first conveying belt 2, the second conveying frame is provided with a second conveying belt 5, the top end of the workbench 1 is fixedly provided with a connecting plate, one end of the connecting plate is fixedly provided with a second electric telescopic rod, the telescopic end of the second electric telescopic rod is fixedly provided with a push plate, one side of the push plate is fixedly provided with a baffle, which is used to avoid other bearings from moving out of the first conveying belt 2 when the push plate pushes the bearings to move. One end of the workbench 1 is provided with a clamping and pushing mechanism 3, which comprises a fixed frame 301 fixedly arranged at one end of the workbench 1, a first screw rod 302 rotatably connected between the inner walls of the two sides of the fixed frame 301, a third motor fixedly arranged at one side of the fixed frame 301, an output end of the third motor penetrating through the fixed frame 301 and fixedly connected with the first screw rod 302, and a first sliding block 303 screwed on the outer wall of the first screw rod 302. The clamping and pushing mechanism 3 further comprises a mounting frame 304 fixedly arranged at the top end of the first sliding block 303, a first electric telescopic rod 305 fixedly arranged at one end of the mounting frame 304, a connecting rod 306 fixedly arranged at the telescopic end of the first electric telescopic rod 305, and a plurality of clamping blocks 307 fixedly arranged at one end of the connecting rod 306 close to the workbench 1. The top end of the workbench 1 is fixedly provided with a limiting plate, the ultrasonic detection head 13 is located between the limiting plate and the clamping blocks 307, the bearings are clamped between the limiting plate and the clamping blocks 307, one end of the workbench 1 is provided with a controller, the controller is electrically connected with the first motor, the second motor, the third motor, the ultrasonic detection head 13 and the like, the specific connection mode of the plurality of electric components and the working principle are well-known technologies in the art, and will not be described in detail here.

[0023] It needs to be noted that by starting the first conveying belt 2 and the second conveying belt 5, the first conveying belt 2 drives the bearing to move, and then the second electric telescopic rod drives the push plate to move the bearing into the clamping block 307 on the left side, and then the third motor is started, the third motor drives the first lead screw 302 to rotate, the first lead screw 302 rotates to drive the first sliding block 303 to move to the right, the first sliding block 303 moves to drive the bearing in the clamping block 307 to move, so that the bearing moves to the left side of the ultrasonic detection head 13, then the first electric telescopic rod 305 drives the clamping block 307 to move backward, then the third motor drives the first lead screw 302 to reverse, the clamping block 307 moves to the left, and then the first electric telescopic rod 305 drives the clamping block 307 to move forward, so that the middle clamping block 307 clamps the bearing, so that the bearing is located between the clamping block 307 and the limiting plate, then the third motor drives the first lead screw 302 to rotate, the first lead screw 302 rotates to drive the first sliding block 303 to move to the right, and the bearing is pushed to the lower side of the ultrasonic detection head 13 for detection, and the detection result is sent to the controller, after detection, the first electric telescopic rod 305 drives the clamping block 307 to move backward, then the third motor drives the first lead screw 302 to reverse, the clamping block 307 moves to the left, and then the first electric telescopic rod 305 drives the clamping block 307 to move forward, so that the next clamping block 307 clamps the bearing, and finally the third motor drives the first lead screw 302 to rotate, the first lead screw 302 rotates to drive the first sliding block 303 to move to the right, the first sliding block 303 moves to drive the bearing in the clamping block 307 to move, so that the bearing moves to the second conveying belt 5, then the first electric telescopic rod 305 drives the clamping block 307 to move backward, the third motor drives the first lead screw 302 to reverse, and the clamping block 307 moves to the left to restore the next bearing.

[0024] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended embodiments and their equivalents.

Claims

1. An apparatus for on-line ultrasonic testing of bearing bore defects propagation, comprising a worktable (1), characterized in that: The top end of the workbench (1) is fixed with a detection frame (4), the inner wall of the top end of the detection frame (4) is rotatably connected with a rotating frame (6), the top end of the detection frame (4) is fixed with a first motor, the output end of the first motor penetrates through the detection frame (4) and is fixed with the rotating frame (6), the two side inner walls of the rotating frame (6) are rotatably connected with a second lead screw (7), one side of the rotating frame (6) is fixed with a second motor, the output end of the second motor penetrates through the rotating frame (6) and is fixed with the second lead screw (7), the outer wall of the second lead screw (7) is screwed with a second sliding block (9), the two side inner walls of the rotating frame (6) are fixed with a fixed rod (8), the fixed rod (8) penetrates through the second sliding block (9), the bottom end of the second sliding block (9) is fixed with a mounting rod (10), the bottom end of the mounting rod (10) is fixed with an air cylinder (11), the output end of the air cylinder (11) is fixed with a connecting piece (12), the bottom end of the connecting piece (12) is mounted with an ultrasonic detection head (13), one side of the mounting rod (10) is fixed with a connecting frame (14), the side close to the connecting piece (12) of the connecting frame (14) is slidably connected with a first rack (15), the bottom end of the first rack (15) is fixed with a fixed plate (18), one side of the fixed plate (18) is fixed with a marking piece (19).

2. The on-line ultrasonic bearing bore flaw propagation inspection apparatus of claim 1, wherein: The top end of the connecting piece (12) is fixed with a second rack (17), one side of the connecting frame (14) is fixed with a mounting plate, one end of the mounting plate is rotatably connected with a gear (16), the gear (16) is engaged with the first rack (15) and the second rack (17).

3. The on-line ultrasonic bearing bore flaw propagation detection apparatus of claim 1, wherein: The top end of the workbench (1) is mounted with a first conveying frame and a second conveying frame, the first conveying frame is provided with a first conveying belt (2), and the second conveying frame is provided with a second conveying belt (5).

4. The on-line ultrasonic bearing bore flaw propagation inspection apparatus of claim 1, wherein: One end of the workbench (1) is provided with a clamping and pushing mechanism (3), the clamping and pushing mechanism (3) comprises a fixed frame (301) fixed at one end of the workbench (1), the two side inner walls of the fixed frame (301) are rotatably connected with a first lead screw (302), one side of the fixed frame (301) is fixed with a third motor, the output end of the third motor penetrates through the fixed frame (301) and is fixed with the first lead screw (302), and the outer wall of the first lead screw (302) is screwed with a first sliding block (303).

5. The on-line ultrasonic bearing bore flaw propagation inspection apparatus of claim 4, wherein: The clamping and pushing mechanism (3) further comprises a mounting frame (304) fixed at the top end of the first sliding block (303), one end of the mounting frame (304) is fixed with a first electric telescopic rod (305), the telescopic end of the first electric telescopic rod (305) is fixed with a connecting rod (306), and a plurality of clamping blocks (307) are fixed at the end close to the workbench (1) of the connecting rod (306).

6. The on-line ultrasonic bearing bore flaw propagation inspection apparatus of claim 1, wherein: The top end of the workbench (1) is fixed with a limiting plate, and the ultrasonic detection head (13) is located between the limiting plate and the clamping block (307).

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