A device for self-checking bearings

Abstract

The invention discloses a device for self-inspection of bearings, comprising a workbench, a placing table is provided on the workbench, a driving mechanism is connected to the placing table, a convex mechanism is fixedly connected to the placing table, the convex mechanism is located inside the convex table, the convex mechanism is connected to a tightening mechanism, the driving mechanism drives the convex mechanism to rotate, and when the convex mechanism rotates, the tightening mechanism is driven to tighten the inner ring of the bearing, a supporting frame is provided on the workbench, a lifting mechanism is provided on the supporting frame, a detection table is provided below the lifting mechanism, a ring table is provided below the detection table, and a plurality of detection devices are provided inside the ring table. The device can detect the bearing diameter in multiple directions of the bearing, greatly improving the accuracy of the outer ring diameter of the bearing.

Description

Technical Field

[0001] The invention relates to the technical field of bearing detection, and in particular to a device for bearing self-detection. Background Art

[0002] Bearings are an important part of modern mechanical equipment. Their main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. Therefore, the quality of the bearing is very important, and now it is necessary to detect the outer ring diameter of the bearing.

[0003] When testing the outer ring diameter of a bearing, generally one diameter of the bearing is selected for testing once. However, the diameters of the outer ring of the bearing may be different in different radial directions, resulting in the bearing having a qualified diameter in one direction and an unqualified diameter in another direction. However, only the qualified direction is detected, resulting in incomplete testing. Summary of the invention

[0004] The purpose of the present invention is to provide a device for bearing self-inspection, which can detect the bearing diameter in multiple directions of the bearing, thereby greatly improving the accuracy of the bearing outer ring diameter.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A device for self-inspection of bearings comprises a workbench, characterized in that a placing table is provided on the workbench, the placing table is provided with a driving mechanism, the driving mechanism is connected with a protruding mechanism, a round table is fixedly connected to the placing table, the protruding mechanism is located inside the round table, the protruding mechanism is connected with a tightening mechanism, the driving mechanism drives the protruding mechanism to rotate, and when the protruding mechanism rotates, the tightening mechanism is driven to tighten the inner ring of the bearing, a supporting frame is provided on the workbench, the supporting frame is provided with a lifting mechanism, a detection table is provided below the lifting mechanism, a ring table is provided below the detection table, and a plurality of detection devices are provided inside the ring table.

[0007] By adopting the above technical scheme, the bearing is put on the circular table of the placing table, and the driving device is started. The driving device drives the raised mechanism to rotate. The raised mechanism rotates a certain angle, pushes the tightening mechanism outward, tightens and fixes the inner ring of the bearing, and after the bearing is fixed, the lifting device is started to lower the inspection table, and then the outer ring size of the bearing is inspected by the inspection device on the ring table. The inspection devices are distributed in different directions, which effectively improves the integrity of the bearing inspection and greatly improves the quality of the bearing.

[0008] Preferably, the protrusion mechanism comprises a disc, a placement groove is provided inside the truncated table, the disc is located in the placement groove, and a plurality of arc-shaped protrusions are provided on the side of the disc, and the distances between the arc-shaped protrusions are equal.

[0009] By adopting the above technical solution, there is a circle of arc-shaped protrusions on the side of the disc, which causes the side of the disc to fluctuate. When the round rod of the clamping device contacts the top of the arc-shaped protrusion, the round rod is pushed outward to press the inner ring of the bearing. When the disc rotates to a certain angle and stops, the round rod is located at the lowest point between the arc-shaped protrusions, which facilitates the replacement of the bearing.

[0010] Preferably, the tightening mechanism includes a plurality of round rods, a plurality of through holes are provided on the side of the truncated cone, the round rods are inserted into the through holes, one end of the round rod located inside the truncated cone is rotatably connected to a roller, the roller contacts the arc-shaped protrusion, the end of the round rod away from the truncated cone is fixedly connected to a blocking block, the outer circumferential wall of the round rod located inside the truncated cone is fixedly connected to an annular boss, a spring is provided between the annular boss and the truncated cone, the spring is sleeved outside the round rod, and a rubber pad is fixedly connected to the blocking block.

[0011] By adopting the above technical solution, the round rod moves in the through hole, and the state of spring 2 is always compressed, so that spring 2 always has a force pushing the round rod toward the disc through the annular boss, and the round rod contacts the side of the disc through the roller, which greatly reduces the friction. The round rod contacts the inner ring of the bearing through the stop block, and the rubber pad on the stop block is soft in texture and rough in surface, which prevents the stop block from crushing the inner ring of the bearing and increases the friction.

[0012] Preferably, the detection device includes a detection rod, which is located at the outside of the ring platform, and the detection rod is fixedly connected to two support rods. The ring platform is provided with a small hole, and the support rod is located in the small hole. The support rod is outer-mounted with a spring 2, and the spring 2 is sleeved outside the support rod, and the two ends of the spring 2 are respectively fixedly connected to the detection rod and the ring platform, and the ring platform is provided with a groove at a position between the two support rods, and a cylinder is provided in the groove, and the output shaft of the cylinder is fixedly connected to a top plate, and the top plate contacts the detection rod, and the lower end of the detection rod is fixedly connected to a detection block, and the upper end of the detection rod is provided with a sensor 1, and a fixed rod is provided above the detection rod, and the fixed rod is equipped with a sensor 2, and the fixed rod is fixedly connected to the ring platform.

[0013] By adopting the above technical solution, the detection rod is inserted into the ring table through two supporting rods, and the second spring is in an extended state, and there is always a pulling force on the detection rod toward the ring table. In the normal state, the cylinder drives the top plate to push the detection rod outward, so that the detection block on the detection rod will not contact the bearing. During the inspection, the cylinder drives the top plate to retract, so that the second spring pulls the detection rod back. After pulling back, the detection block hits the outer ring of the bearing. At this time, the sensor one at the other end of the detection rod is aligned with the sensor two, indicating that the diameter of the part in this direction is qualified, otherwise it is unqualified.

[0014] Preferably, the driving mechanism comprises a stepper motor, the stepper motor is fixedly connected in the placement table, the output shaft of the stepper motor is fixedly connected with a worm, the lower end of the disc is fixedly connected with a rotating shaft, the rotating shaft is fixedly connected with a worm wheel, and the worm is meshed with the worm wheel.

[0015] By adopting the above technical solution, the stepping motor drives the wheel worm to rotate, thereby driving the disc to rotate through the rotating shaft.

[0016] Preferably, the lifting mechanism comprises a hydraulic push rod, one end of which is fixedly connected to the support frame, and the other end of which is fixedly connected to the detection platform.

[0017] By adopting the above technical solution, the hydraulic push rod drives the detection platform to move up and down by telescoping.

[0018] Preferably, an alarm device is provided on the workbench.

[0019] With the above technical solution, when one of the pairs of sensors 1 and 2 is not aligned, the alarm device sounds to remind people that the bearing test is unqualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A perspective view of an embodiment of the invention;

[0021] Figure 2 It is a schematic diagram of the internal structure of the truncated cone of the invention;

[0022] Figure 3 A side sectional view of the detection device of the invention;

[0023] Figure 4 Schematic diagram of the driving device structure of the invention.

[0024] 1. working table; 2. placing table; 3. driving mechanism; 4. protruding mechanism; 5. pressing mechanism; 6. supporting frame; 7. lifting mechanism; 8. testing table; 9. annular table; 10. testing device; 11. bearing; 12. disc; 13. placing groove; 14. arc-shaped protrusion; 15. round rod; 16. through hole; 17. roller; 18. pressing block; 19. rubber pad; 20. annular boss; 21. spring one; 22. round table; 23. testing rod; 24. supporting rod; 25. small hole; 26. spring two; 27. groove; 28. cylinder; 29. ​​top plate; 30. testing block; 31. sensor one; 32. fixing rod; 33. sensor two; 34. stepping motor; 35. worm; 36. worm wheel; 37. rotating shaft; 38. hydraulic push rod; 39. alarm device. DETAILED DESCRIPTION

[0025] The following is only a preferred embodiment of the present invention, and the protection scope is not limited to this embodiment. All technical solutions under the concept of the present invention should belong to the protection scope of the present invention. At the same time, it should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

[0026] like Figures 1 to 4 A device for self-inspection of a bearing 11 includes a workbench 1, a placing table 2 is fixedly connected to the workbench 1, a vertical round table 22 is fixedly connected to the placing table 2, a driving mechanism 3 is arranged inside the placing table 2, and the driving mechanism 3 includes a stepper motor 34, the stepper motor 34 is fixedly connected to the placing table 2, a horizontal worm 35 is fixedly connected to the output shaft of the stepper motor 34, a vertical rotating shaft 37 is fixedly connected to the upper end of the worm 35, a disc 12 of a protruding mechanism 4 is fixedly connected to the rotating shaft 37, the worm 35 is meshed with a worm wheel 36, and the stepper motor 34 drives the wheel worm 35 to rotate, thereby driving the disc 12 to rotate through the rotating shaft 37.

[0027] The protrusion mechanism 4 includes a horizontal disc 12, a placement groove 13 is provided inside the truncated table 22, the disc 12 is located in the placement groove 13, and a plurality of arc-shaped protrusions 14 are provided on the side of the disc 12. The distances between the arc-shaped protrusions 14 are equal. There is a circle of arc-shaped protrusions 14 on the side of the disc 12, which causes the side of the disc 12 to fluctuate. When the round rod 15 of the tightening device contacts the top of the arc-shaped protrusion 14, the round rod 15 is pushed outward to press the inner ring of the bearing 11. When the disc 12 rotates to a certain angle and stops, the round rod 15 is located at the lowest point between the arc-shaped protrusions 14, which facilitates the replacement of the bearing 11.

[0028] The tightening mechanism 5 includes a plurality of horizontal round rods 15, and the number of the round rods 15 is the same as the arc-shaped protrusions 14, and the distances between the round rods 15 are equal. A plurality of through holes 16 are provided on the side of the truncated table 22, and the round rods 15 are inserted into the through holes 16. One end of the round rod 15 located in the truncated table 22 is rotatably connected to a roller 17, and the roller 17 contacts the arc-shaped protrusion 14. The end of the round rod 15 away from the truncated table 22 is fixedly connected to a stop block 18. The outer circumferential wall of the round rod 15 located in the truncated table 22 is fixedly connected to an annular boss 20, and a spring 21 is provided between the annular boss 20 and the truncated table 22. The spring 21 A rubber pad 19 is fixedly connected to the stop block 18, which is sleeved outside the round rod 15. The round rod 15 moves in the through hole 16, and the spring 26 is always compressed, so that the spring 26 always has a force pushing the round rod 15 toward the disk 12 through the annular boss 20, and the round rod 15 is in contact with the side of the disk 12 through the roller 17, which greatly reduces the friction. The round rod 15 is in contact with the inner ring of the bearing 11 through the stop block 18, and the rubber pad 19 on the stop block 18 is soft in texture and rough in surface, which prevents the stop block 18 from crushing the inner ring of the bearing 11 and increases the friction.

[0029] A support frame 6 is provided on the workbench 1, and the support frame 6 is provided with a lifting mechanism 7. The lifting mechanism 7 includes a vertical downward hydraulic push rod 38, one end of the hydraulic push rod 38 is fixedly connected to the support frame 6, and the other end is fixedly connected to the horizontal detection platform 8. A ring platform 9 is fixedly connected below the detection platform 8, and a number of detection devices 10 are arranged in the ring platform 9. The detection device 10 includes a vertical detection rod 23, the detection rod 23 is located outside the ring platform 9, the detection rod 23 is fixedly connected to two horizontal support rods 24, the ring platform 9 is provided with a small hole 25, the support rod 24 is located in the small hole 25, the support rod 24 is covered with a spring 26, the spring 26 is sleeved outside the support rod 24, and the two ends of the spring 26 are respectively fixedly connected to the detection rod 23 and the ring platform 9, the ring platform 9 is located in the middle of the two support rods 24. A groove 27 is provided, and a cylinder 28 is arranged in the groove 27. The output shaft of the cylinder 28 is fixedly connected to a top plate 29, the top plate 29 is in contact with the detection rod 23, and the lower end of the detection rod 23 is fixedly connected to a detection block 30. A sensor 1 31 is provided on the upper end of the detection rod 23, a fixing rod 32 is provided above the detection rod 23, a sensor 2 33 is installed on the fixing rod 32, the fixing rod 32 is fixedly connected to the ring platform 9, the detection rod 23 is inserted on the ring platform 9 through two support rods 24, the spring 26 is in an extended state, and there is always a pulling force on the detection rod 23 in the direction of the ring platform 9. In the normal state, the cylinder 28 drives the top plate 29 to push the detection rod 23 outward, so that the detection block 30 on the detection rod 23 will not contact the bearing 11. During the detection, the cylinder 28 drives the top plate 29 to retract, so that the spring 26 pulls the detection rod 23 back. After pulling back, the detection block 30 presses against the outer ring of the bearing 11. At this time, the sensor 1 31 at the other end of the detection rod 23 is aligned with the sensor 2 33, indicating that the diameter of the part in this direction is qualified, otherwise it is unqualified, and the alarm device 39 installed on the working blanket, the sensor will sound the alarm device 39, to remind people that the bearing 11 detection is unqualified.

[0030] The working principle of the invention is as follows: the bearing 11 is put on the round table 22 of the placing table 2, and the stepper motor 34 is started. The stepper motor 34 drives the disc 12 to rotate a certain angle, so that the arc-shaped protrusion 14 on the disc 12 pushes the round rod 15 outward, and the inner ring of the bearing 11 is supported by the support block 18. After the bearing 11 is fixed, the hydraulic push rod 38 is started to move the detection table 8 downward. At this time, the state of the cylinder 28 is to drive the top plate 29 to open the detection rod 23 outward. After the detection table 8 is lowered, the cylinder 28 drives the top plate 29 to retract, so that the spring 26 pulls the support rod 24 back, so that the detection block 30 is against the side of the outer ring of the bearing 11. This makes the sensor 1 31 at the upper end of the detection rod 23 aligned with the sensor 2 33. If aligned, the bearing 11 is qualified. If not aligned, the product is unqualified, and the alarm device 39 sounds to remind the operator to separate the unqualified bearing 11.

Claims

1. A device for bearing self-inspection, comprising a workbench (1), characterized in that: The workbench (1) is provided with a placing table (2), the placing table (2) is provided with a driving mechanism (3), the driving mechanism (3) is connected with a protruding mechanism (4), the placing table (2) is fixedly connected with a round table (22), the protruding mechanism (4) is located inside the round table (22), the protruding mechanism (4) is connected with a tightening mechanism (5), the driving mechanism (3) drives the protruding mechanism (4) to rotate, and when the protruding mechanism (4) rotates, the tightening mechanism (5) is driven to tighten the inner ring of the bearing (11), the workbench (1) is provided with a supporting frame (6), the supporting frame (6) is provided with a lifting mechanism (7), a detection table (8) is provided below the lifting mechanism (7), a ring table (9) is provided below the detection table (8), and the The annular table (9) is provided with a plurality of detection devices (10); the protrusion mechanism (4) comprises a disc (12); a placement groove (13) is provided inside the disc (22); the disc (12) is located in the placement groove (13); a plurality of arc-shaped protrusions (14) are provided on the side of the disc (12); and the distances between the arc-shaped protrusions (14) are equal; the pressing mechanism (5) comprises a plurality of round rods (15); a plurality of through holes (16) are provided on the side of the disc (22); the round rods (15) are inserted into the through holes (16); one end of the round rod (15) located inside the disc (22) is rotatably connected to a roller (17); the roller (17) contacts the arc-shaped protrusion (14); and the round rod (15) is away from the disc (22). ) is fixedly connected to a stop block (18); the outer circumferential wall of the round rod (15) located inside the truncated platform (22) is fixedly connected to an annular boss (20); a spring (21) is provided between the annular boss (20) and the truncated platform (22); the spring (21) is sleeved outside the round rod (15); a rubber pad (19) is fixedly connected to the stop block (18); the detection device (10) comprises a detection rod (23); the detection rod (23) is located outside the truncated platform (9); the detection rod (23) is fixedly connected to two support rods (24); the truncated platform (9) is provided with a small hole (25); the support rod (24) is located inside the small hole (25); the support rod (24) is sleeved with a spring (26); the spring (26) 26) is sleeved outside the support rod (24), and the two ends of the spring second (26) are fixedly connected to the detection rod (23) and the ring platform (9) respectively, the ring platform (9) is provided with a groove (27) located in the middle of the two support rods (24), a cylinder (28) is provided in the groove (27), the output shaft of the cylinder (28) is fixedly connected with a top plate (29), the top plate (29) is in contact with the detection rod (23), the lower end of the detection rod (23) is fixedly connected with a detection block (30), the upper end of the detection rod (23) is provided with a sensor first (31), a fixing rod (32) is provided above the detection rod (23), the fixing rod (32) is installed with a sensor second (33), and the fixing rod (32) is fixedly connected to the ring platform (9);Spring 2 is in an extended state, and there is always a force pulling the detection rod toward the ring table. In the normal state, the cylinder drives the top plate to push the detection rod outward, so that the detection block on the detection rod will not contact the bearing. During the detection, the cylinder drives the top plate to retract, so that spring 2 pulls the detection rod back, and after pulling back, the detection block hits the outer ring of the bearing. ; 2. A device for bearing self-inspection according to claim 1, characterized in that: The driving mechanism (3) comprises a stepping motor (34), the stepping motor (34) is fixedly connected in the placing table (2), the output shaft of the stepping motor (34) is fixedly connected with a worm (35), the lower end of the disc (12) is fixedly connected with a rotating shaft (37), the rotating shaft (37) is fixedly connected with a worm wheel (36), and the worm (35) is meshed with the worm wheel (36).

3. A device for bearing self-inspection according to claim 2, characterized in that: The lifting mechanism (7) comprises a hydraulic push rod (38), one end of which is fixedly connected to the support frame (6), and the other end of which is fixedly connected to the detection platform (8).

4. A device for bearing self-inspection according to claim 3, characterized in that: The workbench (1) is provided with an alarm device (39).

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