Bearing inner and outer ring detection equipment

Abstract

The application relates to a bearing inner and outer ring detection equipment, belonging to the technical field of bearing detection, which comprises a support, a jacking cylinder, a working platform and a cylindricity detection mechanism. One end of the working platform is rotationally connected to the support, and the other end is a movable end. A sliding plate and a sliding frame are oppositely arranged on the working platform. A driving wheel is rotationally arranged on the sliding plate. At least two groups of positioning wheels are rotationally arranged on the sliding frame. The cylindricity detection mechanism is vertically slidably arranged on the support and located above the working platform. The cylindricity detection mechanism is used for detecting the cylindricity of the bearing. The jacking cylinder is arranged on the support. The power output end of the jacking cylinder extends upwards and abuts against the bottom wall of the movable end of the working platform. The cylindricity of the bearing is detected without manual operation, production cost is saved, and production efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of bearing testing, and in particular to a bearing inner and outer ring testing device. Background Technology

[0002] Bearings are essential components widely used in mechanical equipment. Their main function is to support rotating mechanical parts, such as shafts, wheels, or rotors, while reducing the coefficient of friction during movement and ensuring the accuracy and stability of rotation. After the bearings are manufactured, various indicators need to be checked, such as the three basic dimensions of inner diameter, outer diameter, and width, as well as geometric tolerances such as roundness, cylindricity, and end face parallelism.

[0003] There are two methods for testing various indicators of bearings: manual testing and machine testing. Manual testing is prone to errors due to worker negligence and other reasons. In addition, the huge workload requires a lot of manpower, material resources and time, which increases production costs and slows down the production progress. Summary of the Invention

[0004] To address the aforementioned technical problems, this application provides a bearing inner and outer ring testing device.

[0005] This application provides a bearing inner and outer ring testing device, which adopts the following technical solution: A bearing inner and outer ring testing device includes a support, a lifting cylinder, a working platform, and a cylindricity testing mechanism. One end of the working platform is rotatably connected to the support, and the other end is a movable end. A sliding plate and a carriage are slidably arranged opposite each other on the working platform. A drive wheel is rotatably arranged on the sliding plate. At least two sets of positioning wheels are rotatably arranged on the carriage. The cylindricity testing mechanism is slidably arranged vertically on the support and located above the working platform. The cylindricity testing mechanism is used to test the cylindricity of the bearing. The lifting cylinder is arranged on the support. The power output end of the lifting cylinder extends upward and abuts against the bottom wall of the movable end of the working platform.

[0006] By adopting the above technical solution, when performing bearing cylindricity testing, the sliding plate and carriage are moved so that the drive wheel and positioning wheel come into contact with the bearing to clamp and position it; the drive wheel is driven to rotate the bearing, and the cylindricity testing mechanism is used to test the cylindricity of the bearing; the bearing cylindricity is tested without manual intervention, which saves production costs and improves production efficiency.

[0007] Preferably, the lifting cylinder has an air inlet and an air outlet; a one-way valve is provided in the air inlet; an air supply source is provided on the support; the air supply port of the air supply source is connected to the air inlet; the cylindricity detection mechanism is connected to a transmission mechanism; the transmission mechanism has a sliding part; the sliding part is used to open or block the air outlet after sliding.

[0008] By adopting the above technical solution, if the cylindricity of the bearing is found to be unqualified by the cylindricity detection mechanism, the cylindricity detection mechanism will transmit the signal to the transmission mechanism. The sliding part of the transmission mechanism will open the exhaust port, allowing the gas in the lifting cylinder to be discharged. The working platform will tilt, and the unqualified bearing will fall off. After the bearing falls off, the sliding part of the transmission mechanism will block the exhaust port. Under the action of the air supply, the lifting cylinder will restore its support to the working platform, and the working platform will return to a horizontal position.

[0009] Preferably, the working platform is provided with two columns; a sliding frame is slidably mounted on both columns along the vertical direction; the cylindricity detection mechanism is located at the bottom of the sliding frame; the cylindricity detection mechanism includes a cylinder, a step block, a moving rod, a first spring, a second spring, and a linkage block; the cylinder is located at the bottom of the sliding frame; the step block is slidably mounted in the cylinder; one end of the moving rod is connected to the step block; the other end of the moving rod passes through the cylinder and abuts against the inner or outer wall of the bearing; the first spring is located between the step block and the inner end wall of the cylinder near the bearing; one end of the second spring is connected to the step block, and the other end is connected to the inner end wall of the cylinder away from the bearing; the linkage block is fixedly connected to the step block; two pressure sensors are provided on the cylinder; the two pressure sensors are located on both sides of the linkage block; the pressure sensors are electrically connected to alarms; the alarms are all mounted on the columns.

[0010] By adopting the above technical solution, the bearing is placed on the working platform, the sliding frame moves down, and the moving rod in the cylindricity detection mechanism abuts against the bearing, and then the cylindricity of the bearing is detected. During the bearing cylindricity detection process, if the cylindricity of the bearing is unqualified, the moving rod abutting against the bearing will move, causing the step block to move, which in turn drives the linkage block to move. The linkage block abuts against the pressure sensor, the pressure sensor detects the data, and the pressure sensor transmits a signal to the alarm, which then sounds an alarm. When the cylindricity detection mechanism is not working, the first spring and the second spring push the step block together. The first spring and the second spring exert the same force on the step block, but in opposite directions, thus limiting the step block and the linkage block to the middle position of the opening. At this time, the distance between the two side walls of the linkage block and the two pressure sensors is the same.

[0011] By adopting the above technical solution, during the cylindricity detection of the bearing, the drive wheel drives the bearing to rotate around its own axis, and the moving rod abuts against the side wall of the bearing; the pulley is set at the end of the moving rod to reduce the friction between the moving rod and the bearing in direct contact.

[0012] Preferably, the transmission mechanism includes a switching block, a transverse slide rod, and an exhaust pipe; the switching block is disposed on the cylinder block; a sliding hole is formed on the switching block; the sliding hole connects an intake passage and an exhaust passage; the transverse slide rod slides within the sliding hole; a guide hole is formed on the transverse slide rod; one end of the exhaust pipe is connected to the exhaust port, and the other end is connected to the intake passage; after the transverse slide rod slides laterally, it is used to connect or disconnect the intake passage and the exhaust passage.

[0013] By adopting the above technical solution, the transverse slide bar slides laterally, and the through hole connects the air intake channel and the air outlet channel, allowing the gas in the lifting cylinder to be discharged through the exhaust port, exhaust pipe, air intake channel, through hole, and air outlet channel. The working platform tilts, and the bearing with substandard cylindricity falls off. When the transverse slide bar slides laterally, the through hole blocks the air intake channel and the air outlet channel, preventing the gas in the lifting cylinder from being discharged. The lifting cylinder then restarts, making the working platform level.

[0014] Preferably, the transmission mechanism further includes a first limiting protrusion, a second limiting protrusion, a limiting block, a mating block, and a return spring; the first limiting protrusion and the second limiting protrusion are both disposed on the upper surface of the linkage block; the limiting block slides vertically on the sliding frame; the upper surfaces of the first limiting protrusion and the second limiting protrusion are respectively provided with guide slopes; the bottom of the limiting block abuts against both guide slopes; the mating block is disposed on the cylinder body; a limiting sliding hole is formed in the limiting block; the transverse sliding rod passes through the mating block and the limiting sliding hole transversely; the diameter of the limiting sliding hole is larger than the diameter of the transverse sliding rod; the transverse sliding rod is provided with a limiting protrusion; a limiting slope is provided in the limiting sliding hole; the limiting protrusion abuts against the limiting slope; one end of the return spring is connected to the side wall of the mating block, and the other end is connected to the transverse sliding rod.

[0015] By adopting the above technical solution, if the cylindricity of the bearing is unqualified, the cylindricity detection mechanism will move; the first and second limiting protrusions on the linkage block will move synchronously, and the limiting block will move vertically upward on the sliding frame. The guide slopes of the first and second limiting protrusions will no longer abut against the bottom of the limiting block, and the limiting protrusion of the transverse slide rod will no longer abut against the limiting slope of the limiting block. Since the diameter of the upper limiting slide hole of the limiting block is larger than the diameter of the transverse slide rod, the reset spring returns to its natural state, and the transverse slide rod moves towards the direction of the through block. At this time, the through hole on the transverse slide rod connects the intake channel and the exhaust channel. The gas in the lifting cylinder is discharged through the exhaust pipe, intake channel, through hole, exhaust channel and exhaust pipe. The working platform tilts, and the bearing with unqualified cylindricity falls.

[0016] Preferably, the sliding frame is provided with a limiting plate; the top of the limiting block is connected to a vertical rod; the top of the vertical rod extends upward through the limiting plate; and the top of the vertical rod is connected to a limiting protrusion.

[0017] By adopting the above technical solution, the limiting block slides vertically on the sliding frame, and the presence of the limiting protrusion restricts the vertical sliding displacement of the limiting block.

[0018] Preferably, the transmission mechanism further includes a reset component; the reset component is fixedly connected to the column; the lower end of the reset component is provided with a roller inclined surface; after the sliding frame rises, one end of the transverse slide bar abuts against the roller inclined surface, and the roller inclined surface is used to push the transverse slide bar to slide towards the limiting block.

[0019] By adopting the above technical solution, after the bearing cylindricity test is completed, the sliding frame moves upward, one end of the transverse slide bar abuts against the roller inclined surface, the roller inclined surface pushes the transverse slide bar to slide towards the limit block, the reset spring is compressed, and the transverse slide bar returns to its original state; at this time, due to the effect of gravity, the limit block moves vertically downward on the sliding frame, and the transmission component resets.

[0020] Preferably, a roller is rotatably connected to the end of the transverse slide bar; when the sliding frame rises, the roller rolls along the inclined surface of the roller.

[0021] By adopting the above technical solution, after the bearing cylindricity test is completed, the sliding frame moves upward, the roller rolls along the roller slope, and the roller slope pushes the transverse slide bar to slide closer to the limiting block. The reset spring is compressed again, and the transverse slide bar returns to its original state. At this time, due to the effect of gravity, the limiting block moves vertically downward on the sliding frame, and the transmission component is reset.

[0022] Preferably, the column is provided with an air outlet pipe; one end of the air outlet pipe is connected to the air outlet channel; the other end of the air outlet pipe is directly opposite the outer wall of the bearing; the air outlet direction of the other end of the air outlet pipe is towards the tilt direction of the working platform after rotation.

[0023] By adopting the above technical solution, if the cylindricity of the bearing fails the test, the through hole on the transverse slide bar will connect the air intake channel and the air exhaust channel, and the gas in the lifting cylinder will be discharged from the exhaust pipe. At this time, the working platform will tilt. The discharged gas will be directly opposite the outer wall of the bearing through the exhaust pipe, and the exhaust direction of the exhaust pipe will be towards the tilt direction after the working platform is rotated, which will help the bearing with unqualified cylindricity to fall off.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. By adopting the above technical solution, the bearing is placed on the working platform, the sliding frame moves down, and the moving rod in the cylindricity detection mechanism abuts against the bearing, and then the cylindricity of the bearing is detected; during the bearing cylindricity detection process, if the cylindricity of the bearing is unqualified, the moving rod abutting against the bearing will move, causing the step block to move, which in turn drives the linkage block to move; the linkage block abuts against the pressure sensor, the pressure sensor detects the data, the pressure sensor transmits a signal to the alarm, and the alarm sounds; when the cylindricity detection mechanism is not working, the first spring and the second spring push the step block together. The first spring and the second spring exert the same force on the step block, but in opposite directions, thereby limiting the step block and the linkage block to the middle position of the opening. At this time, the distance between the two side walls of the linkage block and the two pressure sensors is the same.

[0025] 2. By adopting the above technical solution, if the cylindricity of this bearing is unqualified, the cylindricity detection mechanism will move; the first and second limiting protrusions on the linkage block will move synchronously, the limiting block will move vertically upward on the sliding frame, the guide slopes of the first and second limiting protrusions will no longer abut against the bottom of the limiting block, and the limiting protrusion of the transverse slide rod will no longer abut against the limiting slope of the limiting block; since the diameter of the upper limiting slide hole of the limiting block is larger than the diameter of the transverse slide rod, the reset spring returns to its natural state, and the transverse slide rod moves towards the direction of the through block; at this time, the through hole on the transverse slide rod connects the air intake channel and the air outlet channel, and the gas in the lifting cylinder is discharged through the exhaust pipe, air intake channel, through hole, air outlet channel and air outlet pipe, the working platform tilts, and the bearing with unqualified cylindricity falls. Attached Figure Description

[0026] Figure 1 This is a top view of a bearing inner and outer ring inspection device.

[0027] Figure 2 This is a side sectional view of a bearing inner and outer ring inspection device.

[0028] Figure 3 yes Figure 2 Enlarged schematic diagram of section A in the middle.

[0029] Figure 4 yes Figure 2 Enlarged schematic diagram of section B in the middle.

[0030] Figure 5 yes Figure 3 Enlarged schematic diagram of section C.

[0031] Explanation of reference numerals in the attached drawings: 1. Support; 11. Column; 12. Sliding frame; 121. Limiting plate; 1211. Vertical rod; 1212. Limiting protrusion; 13. Support wheel; 2. Lifting cylinder; 21. Air inlet; 211. One-way valve; 2111. Air supply source; 22. Exhaust port; 221. Exhaust pipe; 3. Working platform; 31. Slide plate; 311. Drive wheel; 32. Sliding frame; 321. Positioning wheel; 4. Cylindricity detection mechanism; 411. Cylinder body; 412. Step block; 413. Moving rod; 4131. Pulley; 414. 415. First spring; 416. Second spring; 417. Linkage block; 418. Pressure sensor; 419. Alarm; 5. Transmission mechanism; 51. Switch block; 511. Sliding hole; 512. Air inlet channel; 513. Air outlet channel; 5131. Air outlet pipe; 52. Horizontal slide bar; 521. Through hole; 522. Limiting flange; 523. Roller; 53. First limiting protrusion; 54. Second limiting protrusion; 55. Limiting block; 551. Limiting sliding hole; 56. Mating block; 57. Return spring; 6. Returning component; 61. Roller inclined surface. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0033] This application discloses a bearing inner and outer ring testing device. (Refer to...) Figure 1-5 The system includes a support 1, a lifting cylinder 2, a working platform 3, a column 11, a sliding frame 12, a cylindricity detection mechanism 4, and a transmission mechanism 5. The lifting cylinder 2 is mounted on the support 1. One end of the working platform 3 is rotatably connected to the support 1, and the bottom wall of the other end abuts against the output end of the lifting cylinder 2. The column 11 is mounted on the support 1. The sliding frame 12 slides vertically on the column 11. A motor is mounted on the support 1. The power output shaft of the motor is connected to the top of the sliding frame 12, and the motor drives the sliding frame 12 to slide vertically on the column 11. Since the inner and outer walls of the bearing need to be cylindrical, two sets of cylindricity detection mechanisms 4 are provided. The two sets of cylindricity detection mechanisms 4 abut against the inner and outer walls of the bearing, respectively, and are both located at the bottom of the sliding frame 12. The transmission mechanism 5 is connected to the cylindricity detection mechanism 4.

[0034] The lifting cylinder 2 is provided with an air inlet 21 and an exhaust port 22; a one-way valve 211 is provided at the air inlet 21, and an air supply source 2111 is connected to the air inlet 21. The air supply source 2111 is an air pump, which is mounted on the support 1. The air pump provides a gas source for the lifting cylinder 2, and the one-way valve 211 ensures the stable support of the lifting cylinder 2 for the working platform 3.

[0035] The working platform 3 is equipped with several support wheels 13. Specifically, the working platform 3 has intersecting grooves, and the support wheels 13 are set in the grooves and rotate within them. There are two rows of support wheels 13, with the axes of the same row overlapping and the center lines of the two rows intersecting. The two rows of support wheels 13 provide four points of support for the bearing, ensuring the stability of the inner or outer ring of the bearing. The working platform 3 is equipped with a sliding plate 31 and a carriage 32 that slide in opposite directions. The working platform 3 is also equipped with a first cylinder and a second cylinder, whose power output ends are connected to the sliding plate 31 and the carriage 32, respectively. The first cylinder and the second cylinder drive the sliding plate 31 and the carriage 32 to slide. The slide plate 31 and the carriage 32 are positioned to move away from or close to each other. A drive wheel 311 is rotatably mounted on the slide plate 31, and at least two sets of positioning wheels 321 are mounted on the carriage 32. A drive motor is mounted on the working platform 3, and the power output end of the drive motor is coaxially connected to the drive wheel 311 to drive the drive wheel 311 to rotate. When the slide plate 31 and the carriage 32 are close to each other, the drive wheel 311 and the two sets of positioning wheels 321 abut against the outer wall of the bearing to clamp and position the bearing. At this time, the rotation of the drive wheel 311 drives the bearing to rotate along its own axis, which facilitates the detection of the bearing's cylindricity. When the slide plate 31 and the carriage 32 are far apart, the drive wheel 311 and the two sets of positioning wheels 321 leave the outer wall of the bearing.

[0036] The two sets of cylindricity detection mechanisms 41 each include a cylinder 411, a step block 412, a moving rod 413, a first spring 414, a second spring 415, a linkage block 416, two pressure sensors 417, and an alarm 418. The cylinder 411 is located at the bottom of the sliding frame 12. The step block 412 is slidably disposed inside the cylinder 411. One end of the moving rod 413 is connected to the step block 412. The other end of the moving rod 413 passes through the cylinder 411 and is rotatably connected to a pulley 4131. The pulleys 4131 in the two sets of cylindricity detection mechanisms 41 respectively abut against the inner and outer walls of the bearing. The first spring 414 is sleeved on the outside of the moving rod 413. One end of the first spring 414 is connected to the step block 412, and the other end is connected to the inner end wall of the cylinder 411 near the bearing. One end of the second spring 415 is connected to the step block 412, and the other end is connected to the cylinder 411. The inner end wall away from the bearing is connected; the linkage block 416 is fixedly connected to the step block 412; the top of the cylinder body 411 has an opening, and the linkage block 416 vertically extends through the opening; two pressure sensors 417 are installed on the cylinder body 411; the two pressure sensors 417 are respectively installed on both sides of the opening and can abut against the linkage block 416 respectively; the two pressure sensors 417 are electrically connected to an alarm 418, which is installed on the column 11; when the cylindricity detection mechanism 4 is not working, the first spring 414 and the second spring 415 jointly push the step block 412. The first spring 414 and the second spring 415 exert the same force on the step block 412 and the opposite direction, thereby limiting the step block 412 and the linkage block 416 to the middle position of the opening. At this time, the distance between the two side walls of the linkage block 416 and the two pressure sensors 417 is the same.

[0037] When the inner or outer wall of the bearing exhibits bulging, saddle-shaped, or locally bent, uneven, or concave conditions, the working principle of the two sets of cylindricity detection mechanisms 4 on the inner and outer sides of the bearing is the same. This explanation focuses on the working principle of the cylindricity detection mechanism 4 located on the inner side of the bearing; the working process of the cylindricity detection mechanism 4 located on the outer side of the bearing will not be repeated. When the inner wall of the bearing exhibits bulging, saddle-shaped, or locally bent, uneven, or concave conditions, the pulley 4131, which abuts against the inner wall of the bearing, will move radially along the bearing. The pulley 4131 drives the moving rod 413 to move synchronously, the moving rod 413 drives the step block 412 to move synchronously, the step block 412 drives the linkage block 416 to move synchronously, and the linkage block 416 approaches the pressure sensor 417. When... When the linkage block 416 is not in contact with the pressure sensor 417, it indicates that the error value of the inner wall of the bearing protruding outward or concave inward does not exceed the allowable error value specified in the standard. At this time, the pressure sensor 417 does not receive a pressure signal and will not transmit a signal to the alarm 418. The alarm 418 will not sound, indicating that the cylindricity of this bearing is qualified. When the linkage block 416 contacts the pressure sensor 417, it indicates that the error value of the inner wall of the bearing protruding outward or concave inward exceeds the allowable error value specified in the standard. At this time, the pressure sensor 417 receives a pressure signal and will transmit a signal to the alarm 418. The alarm 418 will sound, indicating that the cylindricity of this bearing is qualified.

[0038] The transmission mechanism 5 includes a cut-off block 51, a transverse slide rod 52, and an exhaust pipe 221. The cut-off block 51 is mounted on the cylinder body 411 and has a sliding hole 511. The sliding hole 511 connects to an intake passage 512 and an exhaust passage 513. The transverse slide rod 52 slides within the sliding hole 511 and has a through hole 521. One end of the exhaust pipe 221 is connected to the exhaust port 22 of the lifting cylinder 2, and the other end is connected to the intake passage 512. The exhaust passage 513 is connected to an exhaust pipe 5131. The exhaust pipe 5131 is mounted on the column 11, and the other end of the exhaust pipe 5131... The air outlet pipe 5131 is aligned with the outer wall of the bearing, and the air outlet direction of the air outlet pipe 5131 is oriented towards the tilt direction after the working platform 3 is rotated; the transverse slide rod 52 slides in the slide hole 511. When the guide hole 521 is aligned with the air inlet channel 512 and the air outlet channel 513, the air outlet channel 513 and the air inlet channel 512 are connected. The gas in the lifting cylinder 2 is discharged through the exhaust pipe 221, the air inlet channel 512, the guide hole 521, the air outlet channel 513 and the air outlet pipe 5131, and the working platform 3 tilts; the air outlet direction of the air outlet pipe 5131 is aligned with the outer wall of the bearing, which is conducive to the falling of bearings that fail the cylindricity test.

[0039] The transmission mechanism 5 also includes a first limiting protrusion 53, a second limiting protrusion 54, a limiting block 55, a mating block 56, and a return spring 57; the first limiting protrusion 53 and the second limiting protrusion 54 are both disposed on the upper surface of the linkage block 416; the first limiting protrusion 53 and the second limiting protrusion 54 are distributed along the moving direction of the linkage block 416; the limiting block 55 slides vertically on the sliding frame 12; the sliding frame 12 has a limiting plate 121, and a vertical rod 1211 is fixedly connected to the top of the limiting block 55, the vertical rod 1211 passes upward through the limiting plate 121, and the top of the vertical rod 1211 is fixed. A limiting protrusion 1212 is connected; the limiting protrusion 1212 restricts the vertical displacement of the limiting block 55; the upper surfaces of the first limiting protrusion 53 and the second limiting protrusion 54 are respectively provided with guide slopes; the bottom of the limiting block 55 abuts against both guide slopes; a mating block 56 is provided on the cylinder body 411; a limiting sliding hole 551 is provided in the limiting block 55; a transverse sliding rod 52 passes through the mating block 56 and the limiting sliding hole 551 transversely; the diameter of the limiting sliding hole 551 is larger than the diameter of the transverse sliding rod 52; the transverse sliding rod 52 is provided with a limiting flange 522; the limiting sliding hole 551 is provided with a limiting flange 522. A limiting inclined surface is provided; a limiting protrusion 522 abuts against the limiting inclined surface; an annular limiting protrusion is on the transverse slide rod 52; a return spring 57 is sleeved on the transverse slide rod 52, one end of the return spring 57 is connected to the side wall of the mating block 56, and the other end is connected to the annular limiting protrusion; if the bearing fails during the test, the linkage block 416 in the cylindricity testing mechanism 41 will move, the first limiting protrusion 53 and the second limiting protrusion 54 will move synchronously, and the limiting block 55 will move vertically upward on the sliding frame 12, and the guide inclined surfaces of the first limiting protrusion 53 and the second limiting protrusion 54 will no longer abut against the limiting block 55. At the bottom of 5, the limiting protrusion 522 of the transverse slide rod 52 is no longer in contact with the limiting inclined surface of the limiting block 55; since the diameter of the upper limiting sliding hole 551 of the limiting block 55 is larger than the diameter of the transverse slide rod 52, under the action of the return spring 57, the transverse slide rod 52 moves towards the direction of the through block 51; at this time, the through hole 521 on the transverse slide rod 52 connects the air inlet channel 512 and the air outlet channel 513, and the gas in the lifting cylinder 2 is discharged through the air outlet pipe 5131. The working platform 3 is tilted, and the air outlet direction of the air outlet pipe 5131 is directly opposite the outer wall of the bearing, which is conducive to the falling of bearings that fail the cylindricity test.

[0040] The transmission mechanism 5 also includes a reset component 6; the reset component 6 is fixedly connected to the column 11; the lower end of the reset component 6 is provided with a roller inclined surface 61; the end of the transverse slide bar 52 is rotatably connected to a roller 523; after the sliding frame 12 rises, the roller 523 rolls along the roller inclined surface 61, and the roller inclined surface 61 is used to push the transverse slide bar 52 to slide towards the limit block 55, the reset spring 57 is compressed, and the transmission component is reset.

[0041] The working principle of the bearing inner and outer ring testing equipment in this application is as follows: After the bearing is manufactured, the cylindricity of the bearing needs to be tested; the bearing is placed on the support wheel 13 of the working platform 3, and the first cylinder and the second cylinder are driven to make the slide plate 31 and the slide frame 32 slide towards each other, so as to complete the clamping and positioning of the bearing by the drive wheel 311 and the positioning wheel 321; the drive motor makes the slide frame 12 move downward on the column 11, so that the pulleys 4131 in the two sets of cylindricity testing mechanisms 4 respectively abut against the inner side wall and the outer side wall of the bearing; the drive wheel 311 is driven to make the bearing rotate, and the cylindricity testing mechanism 4 performs cylindricity testing on the bearing.

[0042] If the cylindricity of this bearing is not up to standard, the pulley 4131, moving rod 413, step block 412, and linkage block 416 that abut against the bearing sidewall will move synchronously; the linkage block 416 abuts against the pressure sensor 417, the pressure sensor 417 detects data, the pressure sensor 417 transmits a signal to the alarm 418, and the alarm 418 sounds; the first limiting protrusion 53 and the second limiting protrusion 54 on the linkage block 416 will move synchronously, the limiting block 55 will move vertically upward on the sliding frame 12, the guide slope of the first limiting protrusion 53 and the second limiting protrusion 54 will no longer abut against the bottom of the limiting block 55, and the limiting protrusion of the transverse slide rod 52 will be... 522 is no longer abutting the limiting slope of the limiting block 55; since the diameter of the upper limit sliding hole 551 of the limiting block 55 is larger than the diameter of the transverse sliding rod 52, the return spring 57 returns to its natural state, and the transverse sliding rod 52 moves in the direction of the through block 51; at this time, the through hole 521 on the transverse sliding rod 52 connects the air intake channel 512 and the air outlet channel 513, and the gas in the lifting cylinder 2 is discharged through the exhaust pipe 221, the air intake channel 512, the through hole 521, the air outlet channel 513 and the air outlet pipe 5131, and the working platform 3 tilts; the air outlet direction of the air outlet pipe 5131 is directly opposite the outer wall of the bearing, and at this time the bearing that fails the cylindricity test falls off.

[0043] After the bearing cylindricity test is completed, the cylindricity testing mechanism 4 stops working. The first spring 414 and the second spring 415 jointly push the step block 412. The pushing force of the first spring 414 and the second spring 415 on the step block 412 is the same and opposite in direction, thus limiting the step block 412 and the linkage block 416 to the middle position of the opening. At this time, the distance between the two side walls of the linkage block 416 and the two pressure sensors 417 is the same. The step block 412, the moving rod 413, the linkage block 416, the first limiting protrusion 53 and the second limiting protrusion 54 are all reset, that is, the cylindricity testing mechanism 4 automatically resets. The sliding frame 12 moves vertically upward on the column 11, and the roller 523 rolls along the inclined surface of the roller 523. The inclined surface of roller 523 pushes the transverse slide bar 52 to slide closer to the limiting block 55, and the return spring 57 is compressed again. At this time, due to the effect of gravity, the limiting block 55 moves vertically downward on the sliding frame 12. The guide inclined surfaces of the first limiting protrusion 53 and the second limiting protrusion 54 abut against the bottom of the limiting block 55, and the limiting protrusion 522 of the transverse slide bar 52 abuts against the limiting inclined surface of the limiting block 55. At this time, the through hole 521 on the transverse slide bar 52 blocks the air intake channel 512 and the air outlet channel 513, and the gas in the lifting cylinder 2 is no longer discharged from the exhaust pipe 221. Due to the presence of the air pump, the lifting cylinder 2 supports the working platform 3 again, keeping the working platform 3 horizontal. The transmission assembly is reset.

[0044] After all components are restored to their original state, the cylindricity of the next bearing is checked.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bearing inner and outer ring testing device, characterized in that: The system includes a support (1), a lifting cylinder (2), a working platform (3), and a cylindricity detection mechanism (4). One end of the working platform (3) is rotatably connected to the support (1), and the other end is a movable end. A sliding plate (31) and a slide frame (32) are slidably arranged on the working platform (3). A drive wheel (311) is rotatably arranged on the sliding plate (31). At least two sets of positioning wheels (321) are rotatably arranged on the slide frame (32). The cylindricity detection mechanism (4) is slidably arranged vertically on the support (1) and located above the working platform (3). The cylindricity detection mechanism (4) is used to detect the cylindricity of the bearing. The lifting cylinder (2) is arranged on the support (1). The power output end of the lifting cylinder (2) extends upward and abuts against the bottom wall of the movable end of the working platform (3).

2. The bearing inner and outer ring testing equipment according to claim 1, characterized in that: The lifting cylinder (2) has an air inlet (21) and an exhaust port (22); a one-way valve (211) is provided in the air inlet (21); an air supply source (2111) is provided on the support (1); the air supply port of the air supply source (2111) is connected to the air inlet (21); the cylindricity detection mechanism (4) is connected to a transmission mechanism (5); the transmission mechanism (5) has a sliding part; the sliding part is used to open or block the exhaust port (22) after sliding.

3. The bearing inner and outer ring testing equipment according to claim 1, characterized in that: The working platform (3) is provided with two columns (11); a sliding frame (12) is slidably provided on both columns (11) along the vertical direction; the cylindricity detection mechanism (4) is provided at the bottom of the sliding frame (12); the cylindricity detection mechanism (4) includes a cylinder (411), a step block (412), a moving rod (413), a first spring (414), a second spring (415), and a linkage block (416); the cylinder (411) is provided at the bottom of the sliding frame (12); the step block (412) is slidably provided in the cylinder (411); one end of the moving rod (413) is connected to the step block (412); the other end of the moving rod (413) passes through the cylinder (411). 11), and abuts against the inner or outer sidewall of the bearing; the first spring (414) is disposed between the step block (412) and the inner end wall of the cylinder (411) near the bearing; one end of the second spring (415) is connected to the step block (412), and the other end is connected to the inner end wall of the cylinder (411) away from the bearing; the linkage block (416) is fixedly connected to the step block (412); two pressure sensors (417) are disposed on the cylinder (411); the two pressure sensors (417) are respectively located on both sides of the linkage block (416); the pressure sensors (417) are electrically connected to an alarm (418); the alarms (418) are all disposed on the column (11).

4. The bearing inner and outer ring testing equipment according to claim 3, characterized in that: The end of the movable rod (413) is rotatably connected to a pulley (4131); the movable rod (413) abuts against the inner or outer side wall of the bearing through the pulley (4131).

5. The bearing inner and outer ring testing equipment according to claim 3, characterized in that: The transmission mechanism (5) includes a cut-off block (51), a transverse slide rod (52), and an exhaust pipe (221); the cut-off block (51) is disposed on the cylinder body (411); a sliding hole (511) is provided on the cut-off block (51); the sliding hole (511) connects the intake channel (512) and the exhaust channel (513); the transverse slide rod (52) slides in the sliding hole (511); a guide hole (521) is provided on the transverse slide rod (52); one end of the exhaust pipe (221) is connected to the exhaust port (22), and the other end is connected to the intake channel (512); after the transverse slide rod (52) slides laterally, it is used to connect or disconnect the intake channel (512) and the exhaust channel (513).

6. The bearing inner and outer ring testing equipment according to claim 5, characterized in that: The transmission mechanism (5) further includes a first limiting protrusion (53), a second limiting protrusion (54), a limiting block (55), a mating block (56), and a return spring (57); the first limiting protrusion (53) and the second limiting protrusion (54) are both disposed on the upper surface of the linkage block (416); the limiting block (55) slides vertically on the sliding frame (12); the upper surfaces of the first limiting protrusion (53) and the second limiting protrusion (54) are respectively provided with guide slopes; the bottom of the limiting block (55) abuts against both guide slopes; the mating block (56) is disposed on the cylinder On the body (411); a limiting sliding hole (551) is provided in the limiting block (55); the transverse sliding rod (52) passes through the mating block (56) and the limiting sliding hole (551) in the transverse direction; the diameter of the limiting sliding hole (551) is larger than the diameter of the transverse sliding rod (52); the transverse sliding rod (52) is provided with a limiting protrusion (522); a limiting inclined surface is provided in the limiting sliding hole (551); the limiting protrusion (522) abuts against the limiting inclined surface; one end of the reset spring (57) is connected to the side wall of the mating block (56), and the other end is connected to the transverse sliding rod (52).

7. The bearing inner and outer ring testing equipment according to claim 6, characterized in that: A limiting plate (121) is provided on the sliding frame (12); a vertical rod (1211) is connected to the top of the limiting block (55); the top of the vertical rod (1211) extends upward through the limiting plate (121); a limiting protrusion (1212) is connected to the top of the vertical rod (1211).

8. The bearing inner and outer ring testing equipment according to claim 6, characterized in that: The transmission mechanism (5) also includes a reset component (6); the reset component (6) is fixedly connected to the column (11); the lower end of the reset component (6) is provided with a roller inclined surface (61); after the sliding frame (12) rises, one end of the transverse slide rod (52) abuts against the roller inclined surface (61), and the roller inclined surface (61) is used to push the transverse slide rod (52) to slide towards the limiting block (55).

9. A bearing inner and outer ring testing device according to claim 8, characterized in that: The end of the transverse slide bar (52) is rotatably connected to a roller (523); when the sliding frame (12) rises, the roller (523) rolls along the roller ramp (61).

10. A bearing inner and outer ring testing device according to claim 6, characterized in that: An air outlet pipe (5131) is provided on the column (11); one end of the air outlet pipe (5131) is connected to the air outlet channel (513); the other end of the air outlet pipe (5131) is directly opposite the outer wall of the bearing; the air outlet direction of the other end of the air outlet pipe (5131) is towards the tilt direction of the working platform (3) after rotation.

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