Test tool applied to separation force detection of inner and outer rings of suspension bearings of various specifications

Abstract

The invention discloses a test tool applied to separation force detection of inner and outer rings of suspension bearings of various specifications, which comprises a test bed and a top plate mounted at the top of the test bed, a hydraulic cylinder is mounted at the bottom of the top plate, a load sensor is fixedly mounted at the bottom end of the hydraulic cylinder, an outer ring clamping assembly is arranged at the bottom end of the load sensor, and the outer ring clamping assembly is fixedly mounted at the bottom end of the hydraulic cylinder. A through groove is formed in the top of the test bed; according to the device, automatic positioning of suspension bearings of different specifications can be achieved by arranging the inner ring clamping assembly and the outer ring clamping assembly, an air pump in the inner ring clamping assembly inflates a mounting groove and an air cavity, a piston seat drives a limiting ejector rod to correct and center the bearing which is not centered, and an electromagnet, an ejector rod and other structures of the auxiliary assembly can further clamp an inner ring; a hydraulic air cylinder in the clamping assembly drives a clamping plate to get close to the outer ring, an infrared distance measuring sensor monitors the distance, a double-shaft motor controls the clamping plate to move, and the outer rings of different specifications can be accurately and automatically positioned.

Description

Technical Field

[0001] The invention relates to the technical field of automobile suspension bearing production, and more specifically to a test fixture used for detecting the separation force of inner and outer rings of suspension bearings of various specifications. Background Art

[0002] In the fields of automobile manufacturing and maintenance, suspension bearings are one of the important parts. The performance of suspension bearings directly affects key performance indicators such as driving stability, comfort and safety of the car. Among them, the separation force between the inner and outer rings of the suspension bearing is an important parameter to measure the quality and performance of the suspension bearing, and accurate detection of it is of great significance.

[0003] Traditional suspension bearing inner and outer ring separation force detection tools often have some limitations. On the one hand, for suspension bearings of different specifications, traditional tools are difficult to achieve accurate positioning and clamping, which may lead to inaccurate test results. Due to the size differences of suspension bearings of different specifications, a clamping device that can adapt to multiple specifications is needed to ensure that the inner and outer rings can be stably fixed during the test process, so as to obtain reliable separation force data; On the other hand, when testing the separation force of the inner and outer rings, the suspension bearing may be damaged to a certain extent during the test, resulting in debris. If these debris are not effectively controlled, they will spread everywhere, not only causing damage such as wear and corrosion to the test equipment, affecting the service life and test accuracy of the equipment, but also causing harm to the surrounding working environment and operators. Therefore, professionals in this field have provided test fixtures for the separation force of the inner and outer rings of suspension bearings of various specifications to solve the above-mentioned problems. Summary of the invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a test fixture for detecting the separation force of inner and outer rings of suspension bearings of various specifications, so as to solve the background technical problems.

[0005] To achieve the above object, the present invention adopts the following technical solution: A test fixture used for detecting the separation force of inner and outer rings of suspension bearings of various specifications comprises a test bench and a top plate installed on the top thereof, a hydraulic cylinder is installed at the bottom of the top plate, a load sensor is fixedly installed at the bottom end of the hydraulic cylinder, an outer ring clamping assembly is arranged at the bottom end of the load sensor, a through groove is opened at the top of the test bench, a bearing seat is arranged inside the through groove, the bottom end of the bearing seat is connected to the inner wall of the test bench, an inner ring clamping assembly and an auxiliary assembly are arranged inside the bearing seat, a protection collection assembly is arranged inside the test bench, a processor is integrated inside the test bench, and the hydraulic cylinder, load sensor, outer ring clamping assembly, inner ring clamping assembly, auxiliary assembly and protection collection assembly are all connected with processor signals.

[0006] The outer ring clamping assembly includes a mounting frame, which is connected to the bottom end of the load sensor. A dual-axis motor is installed on the inner wall of the mounting frame. A screw rod 1 is installed on the output shaft of the dual-axis motor. A clamping plate is connected to the screw rod 1, and the clamping plate is slidably connected to the inner wall of the mounting frame.

[0007] The inner ring clamping assembly includes a mounting groove, which is arranged inside the bearing seat. An evenly distributed air cavity is arranged on the inner wall of the mounting groove. A piston seat is slidably mounted on the inner wall of the air cavity. A limiting push rod is connected to the piston seat. An end of the limiting push rod away from the piston seat passes through and extends to the outside of the bearing seat. An air pump is fixedly mounted on the bottom of the bearing seat, and the air pump is connected to the inside of the mounting groove through a pipeline.

[0008] The protective collection assembly includes a protective sleeve, the bottom of the protective sleeve is slidably connected to an assembly ring, the assembly ring is slidably connected to the inner wall of the test bench, two servo motors are fixedly installed on the inner wall of the test bench, a second screw rod is fixedly installed on the output shaft of the servo motor, the assembly ring is threadedly connected to the second screw rod, a bending guide plate is fixedly connected to the inner wall of the test bench, both sides of the bending guide plate penetrate and extend to the outside of the test bench.

[0009] As a further description of the above technical solution: the top of the assembly ring is fixedly connected to a uniformly distributed spring, the top of the spring is connected to the protective sleeve, vibration motors are installed on both sides of the protective sleeve, and the inner wall of the protective sleeve is fixedly connected to equidistantly arranged retaining rings, and the top of the top plate is fixedly installed with a buzzer, which is connected to the processor signal.

[0010] As a further description of the above technical solution: the auxiliary component includes a mounting ring, which is fixedly mounted on the outside of the bearing seat, and the top of the mounting ring is provided with evenly distributed ejection grooves, and an electromagnet is fixedly mounted inside the mounting ring, and the top of the electromagnet is magnetically connected to a magnetic ring, and the top of the magnetic ring is fixedly connected to evenly distributed ejection rods, and the ejection rods are located at the bottom of the ejection grooves.

[0011] As a further description of the above technical solution: a guide bucket is fixedly connected to the inner wall of the protective sleeve, the guide bucket is located on the top of the vibration motor, and infrared ranging sensors are installed on the opposite sides of the two card plates, and the infrared ranging sensors are connected to the processor signal.

[0012] Compared with the prior art, the advantages of the present invention are: (1) In the present invention, by providing a protective collection component, effective protection and collection of debris generated when the inner and outer rings of the suspension bearing are separated can be achieved. The protective sleeve is supported by a spring on the top of the assembly ring and can be moved to a suitable position under the drive of a servo motor. The vibration motor in the protective sleeve works to make the protective sleeve vibrate vertically. The retaining ring on the inner wall can prevent the debris from rebounding, and the bent guide plate in the test bench can discharge and collect the debris entering the test bench, thereby preventing the debris from spreading and causing damage to the equipment, thereby effectively protecting the equipment.

[0013] (2) The present invention can realize automatic positioning of suspension bearings of different specifications by providing an inner ring clamping assembly and an outer ring clamping assembly. The air pump in the inner ring clamping assembly inflates the mounting groove and the air cavity, and the piston seat drives the limit ejector rod to correct the misaligned bearing to be centered. The electromagnet, ejector rod and other structures of the auxiliary assembly can further clamp the inner ring to adapt to inner rings of different specifications. The hydraulic cylinder in the outer ring clamping assembly drives the clamping plate to approach the outer ring, the infrared ranging sensor monitors the distance, and the dual-axis motor controls the movement of the clamping plate, so as to accurately and automatically position outer rings of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the clamping suspension bearing of the present invention; Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle; Figure 4 It is a schematic diagram of the cross-sectional structure of an unclamped suspension bearing of the present invention; Figure 5 For the present invention Figure 2 The enlarged structural diagram at B in the middle; Figure 6 It is a schematic diagram of the principle of the present invention.

[0015] Description of the numbers in the figure: 1. Test bench; 2. Ejector plate; 3. Hydraulic cylinder; 4. Load sensor; 5. Outer ring clamping assembly; 501. Mounting frame; 502. Dual-axis motor; 503. Card plate; 6. Through slot; 7. Bearing seat; 8. Inner ring clamping assembly; 801. Mounting slot; 802. Air cavity; 803. Piston seat; 804. Limit ejector rod; 805. Air pump; 9. Auxiliary assembly; 901. Mounting ring; 902. Ejector slot; 903. Electromagnet; 904. Magnetic ring; 905. Ejector rod; 10. Protection collection assembly; 1001. Protection cover; 1002. Assembly ring; 1003. Servo motor; 1004. Bending guide plate; 11. Processor; 12. Spring; 13. Vibration motor; 14. Retaining ring; 15. Buzzer; 16. Guide shaft; 17. Guide bucket; 18. Infrared ranging sensor. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0017] See also Figures 1 to 6 In the present invention, a test fixture used for detecting the separation force of inner and outer rings of suspension bearings of various specifications includes a test bench 1 and a top plate 2 installed on the top thereof, a hydraulic cylinder 3 is installed at the bottom of the top plate 2, a load sensor 4 is fixedly installed at the bottom end of the hydraulic cylinder 3, an outer ring clamping assembly 5 is arranged at the bottom end of the load sensor 4, a through groove 6 is opened on the top of the test bench 1, a bearing seat 7 is arranged inside the through groove 6, the bottom end of the bearing seat 7 is connected to the inner wall of the test bench 1, an inner ring clamping assembly 8 and an auxiliary assembly 9 are arranged inside the bearing seat 7, a protection collection assembly 10 is arranged inside the test bench 1, a processor 11 is integrated inside the test bench 1, and the hydraulic cylinder 3, the load sensor 4, the outer ring clamping assembly 5, the inner ring clamping assembly 8, the auxiliary assembly 9 and the protection collection assembly 10 are all connected to the processor 11 signal.

[0018] The outer ring clamping assembly 5 includes a mounting frame 501, which is connected to the bottom end of the load sensor 4. A dual-axis motor 502 is installed on the inner wall of the mounting frame 501. A screw rod 1 is installed on the output shaft of the dual-axis motor 502. A clamping plate 503 is connected to the screw rod 1. The clamping plate 503 is slidably connected to the inner wall of the mounting frame 501.

[0019] The inner ring clamping assembly 8 includes a mounting groove 801, which is opened inside the bearing seat 7. An evenly distributed air cavity 802 is opened on the inner wall of the mounting groove 801. A piston seat 803 is slidably installed on the inner wall of the air cavity 802. A limiting push rod 804 is connected to the piston seat 803. The end of the limiting push rod 804 away from the piston seat 803 passes through and extends to the outside of the bearing seat 7. An air pump 805 is fixedly installed on the bottom of the bearing seat 7, and the air pump 805 is connected to the inside of the mounting groove 801 through a pipeline.

[0020] The protective collection assembly 10 includes a protective sleeve 1001, the bottom of the protective sleeve 1001 is slidably connected to an assembly ring 1002, the assembly ring 1002 is slidably connected to the inner wall of the test bench 1, two servo motors 1003 are fixedly installed on the inner wall of the test bench 1, a screw rod 2 is fixedly installed on the output shaft of the servo motor 1003, the assembly ring 1002 is threadedly connected to the screw rod 2, a bending guide plate 1004 is fixedly connected to the inner wall of the test bench 1, and both sides of the bending guide plate 1004 penetrate and extend to the outside of the test bench 1.

[0021] The top of the assembly ring 1002 is fixedly connected with uniformly distributed springs 12, the top of the spring 12 is connected to the protective sleeve 1001, vibration motors 13 are installed on both sides of the protective sleeve 1001, and the inner wall of the protective sleeve 1001 is fixedly connected with equidistantly arranged retaining rings 14.

[0022] The auxiliary component 9 includes a mounting ring 901, which is fixedly mounted on the outer side of the supporting seat 7. The top of the mounting ring 901 is provided with evenly distributed ejection grooves 902. An electromagnet 903 is fixedly mounted inside the mounting ring 901. The top of the electromagnet 903 is magnetically connected to a magnetic ring 904. The top of the magnetic ring 904 is fixedly connected to evenly distributed ejection rods 905. The ejection rods 905 are located at the bottom of the ejection grooves 902.

[0023] The top surface of the mounting ring 901 is smooth, and an air pressure sensor is installed inside the mounting groove 801 . Infrared distance sensors 18 are installed on opposite sides of the two card plates 503 . The infrared distance sensors 18 are connected to the processor 11 by signal.

[0024] When the inner and outer ring separation force of the suspension bearing needs to be tested, the equipment should be Figure 4 As shown, there is a gap between the outer ring clamping assembly 5 and the inner ring clamping assembly 8 that is large enough for the bearing to enter. At this time, the processor 11 is connected to the external system and can transmit and receive signals to the system; the user lifts the suspension bearing to the top of the bearing seat 7 and moves it downward so that the inner ring of the suspension bearing is sleeved on the bottom of the outer side of the bearing seat 7 and contacts the mounting ring 901. At this time, the mounting ring 901 with a smooth top supports the bearing but has less friction, and then the operation of the inner ring clamping assembly 8 can be controlled.

[0025] At this time, the air pump 805 fills the external gas into the inner wall of the installation groove 801 and continuously enters the air cavity 802 from the installation groove 801. The piston seat 803 slidably connected to the inside of the air cavity 802 begins to slide under the action of air pressure, so that the limiting push rod 804 continues to approach the inner ring of the bearing. The bearing placed by the tester is not in the center position. At this time, the limiting push rod 804 that first contacts the inner ring of the bearing will push the bearing to slide on the top of the installation ring 901. When multiple groups of limiting push rods 804 all contact the inner ring, the bearing will be corrected to the center position. At this time, the air pump 805 gradually pressurizes the inside of the installation groove 801, and the pressure sensor monitors the value and transmits it to the processor 11. When the value reaches The set interval value indicates that the limit push rod 804 is centered on the bearing. At this time, the processor 11 controls the operation of the auxiliary component 9. The electromagnet 903 in the auxiliary component 9 is energized to generate the same magnetic pole as the magnetic ring 904. The magnetic ring 904 begins to move away from the electromagnet 903, that is, upward, under the action of the magnetic field. Multiple sets of ejector rods 905 penetrate from the ejector groove 902 to contact the bottom of the inner ring of the bearing and slightly lift the inner ring of the bearing. At this time, the ejector rod 905 is better engaged with the inner ring. After the processor 11 controls the electromagnet 903 to operate for a period of time, the air pump 805 receives the instruction to continue pressurizing until the air pressure sensor value reaches the set value peak, indicating that the limit push rod 804 has effectively positioned and clamped the inner ring.

[0026] In the above process, Figure 2 It indicates that the inner side of the inner ring of the suspension bearing is limited by the limiting push rod 804. Even if the inner ring specifications are changed, the limiting push rod 804 can still contact the inner ring of the bearing to achieve centering and effective clamping. At the same time, the bottom auxiliary component 9 can clamp the bearing and the limiting push rod 804 to achieve better clamping; Then the processor 11 controls the operation of the hydraulic cylinder 3 and the outer ring clamping assembly 5. The hydraulic cylinder 3 drives the load sensor 4 to operate downward, so that the two card plates 503 move to the two sides of the outer ring of the bearing. At this time, the infrared ranging sensor 18 detects the distance value between the two groups of card plates 503 and transmits the value to the processor 11. The processor 11 controls the operation of the dual-axis motor 502. The dual-axis motor 502 drives the two screw rods to rotate, and the two card plates 503 threadedly connected to the screw rods begin to move relative to each other and gradually approach the outer ring of the bearing. At this time, the value of the infrared ranging sensor 18 gradually changes and transmits the signal to the processor 11. When the value approaches the set value, the card plate 503 is about to contact the outer ring of the bearing. When the bending part of the card plate 503 moves to the bottom of the outer ring of the bearing, the processor 11 controls the dual-axis motor 502 to stop operating, and the dual-axis motor 502 stops the card plate 503.

[0027] Then the processor 11 controls the protection collection assembly 10 to operate, the servo motor 1003 drives the screw rod fixedly connected thereto to rotate synchronously, the assembly ring 1002 threadedly connected to the screw rod 2 starts to move upward, and the protection sleeve 1001 moves upward accordingly. As the servo motor 1003 continues to work, the protection sleeve 1001 moves to the peak value. Figure 2 As shown, at this time, the inner and outer rings of the bearing are both located inside the protective sleeve 1001, and the processor 11 controls the operation of the vibration motor 13. The protective sleeve 1001 is supported on the top of the assembly ring 1002 by the spring 12. The vibration generated by the vibration motor 13 is transmitted to the entire protective sleeve 1001, causing the protective sleeve 1001 to begin to produce a small vertical movement.

[0028] Subsequently, the processor 11 controls the operation of the hydraulic cylinder 3, and the hydraulic cylinder 3 drives the load sensor 4 to move upward. At this time, the force of the hydraulic cylinder 3 is transmitted to the outer ring clamping assembly 5 behind the load sensor 4, and the two sets of clamping plates 503 pull the outer ring of the bearing upward, and the inner ring of the bearing is limited by the inner ring clamping assembly 8, and the force generated thereby causes the outer ring to separate from the inner ring. As the output horsepower of the hydraulic cylinder 3 continues to increase, the value of the load sensor 4 also continues to increase and transmits the signal to the processor 11, which then transmits it to the outside. When the inner ring and the outer ring are separated, the load sensor 4 generates a value that is recorded by the processor 11, and at this time, the debris metal component generated by the bearing separation will collapse and spread to the surroundings, and the debris collapse movement path will be blocked by the protective sleeve 1001.

[0029] When the debris generated by the collapse of the suspension bearing contacts the vibrating protective sleeve 1001 at a relatively fast speed and with a relatively large impact force, the vertical vibration of the protective sleeve 1001 plays an important role in reducing the impact of the debris and avoiding rebound. The protective sleeve 1001 is connected to the vibration motor 13 and is in a vertical vibration state. On the one hand, this vibration can convert part of the impact force of the debris into the energy of the vibration of the protective sleeve 1001. According to the law of conservation of energy, the instantaneous energy input of the debris will be consumed by the continuous and regular vibration of the protective sleeve 1001. On the other hand, the vertical vibration of the protective sleeve 1001 changes the impact direction of the debris. Due to the dynamic movement of the protective sleeve 1001, the impact of the debris is not a simple frontal collision. The impact force is decomposed in the vertical direction, which reduces the direct rebound force. The inner side of the protective sleeve 1001 is connected The downward inclined retaining ring 14 also plays a key role. The retaining ring 14 can guide the debris to move downward. When the debris rebounds, it contacts the retaining ring 14, and its rebound force is decomposed by the inclined surface of the retaining ring 14. According to the principle of force decomposition, the downward component of force increases to prompt the debris to move downward. At the same time, the retaining ring 14 blocks the debris rebound path. Its continuous setting makes it difficult for the debris to find a direct rebound channel. In addition, the bottom of the protective sleeve 1001 is connected to the assembly ring 1002 by a spring 12. The spring 12 plays a buffering role. According to Hooke's law, when the debris hits the protective sleeve 1001, the spring 12 is compressed, and the impact force is converted into its own elastic potential energy, reducing the impact force transmitted to the entire device, and indirectly reducing the debris rebound energy. After the debris enters downward into the test bench 1, it is discharged and collected through the bending guide plate 1004.

[0030] After the data is obtained, the device can be controlled to reset. At this time, the dual-axis motor 502 rotates in the opposite direction to separate the card plate 503 from the outer ring of the bearing, and the hydraulic cylinder 3 drives the outer ring clamping assembly 5 to continue to move up and reset. The attached debris will also enter the protective sleeve 1001, and the electromagnet 903 of the auxiliary component 9 is powered off to make the ejector rod 905 enter the ejector groove 902. Then the air pump 805 generates suction to discharge the air flow inside the installation groove 801 to form a negative pressure inside the installation groove 801. After the negative pressure is formed inside the air cavity 802, the piston seat 803 begins to reset and pulls the limit ejector rod 804 to separate from the inner ring of the bearing. Finally, the servo motor 1003 rotates in the opposite direction to drive the screw rod 2 to rotate in the opposite direction. At this time, the protective sleeve 1001 moves downward with the assembly ring 1002 into the test bench 1 until it is reset. The bearing is exposed and the user can then take out the separated inner and outer rings of the bearing and wait for subsequent operations.

[0031] In the present invention, by providing a protective collection component 10, effective protection and collection of debris generated when the inner and outer rings of the suspension bearing are separated can be achieved. The protective sleeve 1001 is supported by a spring 12 on the top of the assembly ring 1002, and can be moved to a suitable position under the drive of the servo motor 1003. The vibration motor 13 in the protective sleeve 1001 works to make the protective sleeve 1001 vibrate vertically. The retaining ring 14 on its inner wall can prevent the debris from rebounding, and the bending guide plate 1004 in the test bench 1 can discharge and collect the debris entering the test bench 1, so as to avoid the spread of debris to damage the equipment and effectively protect the equipment.

[0032] The present invention can realize automatic positioning of suspension bearings of different specifications by arranging an inner ring clamping assembly 8 and an outer ring clamping assembly 5. The air pump 805 in the inner ring clamping assembly 8 inflates the mounting groove 801 and the air cavity 802, and the piston seat 803 drives the limiting ejector rod 804 to correct the misaligned bearing to be centered. The electromagnet 903, the ejector rod 905 and other structures of the auxiliary assembly 9 can further clamp the inner ring to adapt to inner rings of different specifications. The hydraulic cylinder 3 in the outer ring clamping assembly 5 drives the clamping plate 503 to approach the outer ring, the infrared ranging sensor 18 monitors the distance, and the dual-axis motor 502 controls the movement of the clamping plate 503, so as to accurately and automatically position outer rings of different specifications.

[0033] See also Figure 1 and 6 , wherein: a buzzer 15 is fixedly installed on the top of the top plate 2, and the buzzer 15 is connected to the processor 11 by signal.

[0034] See also Figure 2 , 4 5, wherein: a guide shaft 16 is disposed inside the spring 12, the top end of the guide shaft 16 is connected to the protective sleeve 1001, and the bottom end of the guide shaft 16 penetrates and extends to the bottom of the assembly ring 1002.

[0035] In the present invention, the setting of the guide shaft 16 can limit the protective sleeve 1001, so that the protective sleeve 1001 is always located at the top of the assembly ring 1002 to maintain stable movement in the vertical direction, and at the same time ensure that the spring 12 maintains an elastic contraction state in the vertical direction.

[0036] See also Figure 2 , 4 5, wherein: a guide bucket 17 is fixedly connected to the inner wall of the protective sleeve 1001, and the guide bucket 17 is located on the top of the vibration motor 13.

[0037] In the present invention, after the debris contacts the protective cover 1001 and moves toward the bottom, the guide bucket 17 can play a protective and mitigating role, thereby preventing the debris from splashing when it falls from a high height and contacts the bending guide plate 1004 .

[0038] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A test fixture for detecting the separation force of inner and outer rings of suspension bearings of various specifications, comprising a test bench (1) and a top plate (2) mounted on the top thereof, characterized in that: A hydraulic cylinder (3) is installed at the bottom of the top plate (2), a load sensor (4) is fixedly installed at the bottom end of the hydraulic cylinder (3), an outer ring clamping assembly (5) is arranged at the bottom end of the load sensor (4), a through slot (6) is opened at the top of the test bench (1), a bearing seat (7) is arranged inside the through slot (6), the bottom end of the bearing seat (7) is connected to the inner wall of the test bench (1), an inner ring clamping assembly (8) and an auxiliary assembly (9) are arranged inside the bearing seat (7), a protection collection assembly (10) is arranged inside the test bench (1), a processor (11) is integrated inside the test bench (1), and the hydraulic cylinder (3), the load sensor (4), the outer ring clamping assembly (5), the inner ring clamping assembly (8), the auxiliary assembly (9) and the protection collection assembly (10) are all connected to the processor (11) for signal communication; The outer ring clamping assembly (5) comprises a mounting frame (501), the mounting frame (501) is connected to the bottom end of the load sensor (4), a dual-axis motor (502) is mounted on the inner wall of the mounting frame (501), a screw rod 1 is mounted on the output shaft of each of the dual-axis motors (502), a clamping plate (503) is connected to the screw rod 1, and the clamping plate (503) is slidably connected to the inner wall of the mounting frame (501); The inner ring clamping assembly (8) comprises a mounting groove (801), wherein the mounting groove (801) is provided inside the bearing seat (7), and the inner wall of the mounting groove (801) is provided with evenly distributed air cavities (802), and a piston seat (803) is slidably mounted on the inner wall of the air cavity (802), and a limiting push rod (804) is connected to the piston seat (803), and one end of the limiting push rod (804) away from the piston seat (803) penetrates and extends to the outside of the bearing seat (7), and an air pump (805) is fixedly mounted on the bottom of the bearing seat (7), and the air pump (805) is connected to the inside of the mounting groove (801) through a pipeline; The protective collection assembly (10) comprises a protective sleeve (1001), the bottom of the protective sleeve (1001) is slidably connected to an assembly ring (1002), the assembly ring (1002) is slidably connected to the inner wall of the test bench (1), two servo motors (1003) are fixedly mounted on the inner wall of the test bench (1), a second screw rod is fixedly mounted on the output shaft of the servo motor (1003), the assembly ring (1002) is threadedly connected to the second screw rod, a bending guide plate (1004) is fixedly connected to the inner wall of the test bench (1), and both sides of the bending guide plate (1004) penetrate and extend to the outside of the test bench (1).

2. The test fixture for detecting the separation force of inner and outer rings of suspension bearings of various specifications according to claim 1 is characterized in that: The top of the assembly ring (1002) is fixedly connected to uniformly distributed springs (12), the top of the spring (12) is connected to the protective sleeve (1001), vibration motors (13) are installed on both sides of the protective sleeve (1001), and the inner wall of the protective sleeve (1001) is fixedly connected to equidistantly arranged retaining rings (14).

3. The test fixture for detecting the separation force of inner and outer rings of suspension bearings of various specifications according to claim 1 is characterized in that: A buzzer (15) is fixedly mounted on the top of the top plate (2), and the buzzer (15) is signal-connected to the processor (11).

4. The test fixture for detecting the separation force of inner and outer rings of suspension bearings of various specifications according to claim 1 is characterized in that: The auxiliary component (9) comprises a mounting ring (901), the mounting ring (901) being fixedly mounted on the outside of the bearing seat (7), the top of the mounting ring (901) being provided with evenly distributed ejection grooves (902), the interior of the mounting ring (901) being fixedly mounted with an electromagnet (903), the top of the electromagnet (903) being magnetically connected to a magnetic ring (904), the top of the magnetic ring (904) being fixedly connected to evenly distributed ejection rods (905), the ejection rods (905) being located at the bottom of the ejection grooves (902).

5. The test fixture for detecting the separation force of inner and outer rings of suspension bearings of various specifications according to claim 4 is characterized in that: The top surface of the mounting ring (901) is smooth.

6. The test fixture for detecting the separation force of inner and outer rings of suspension bearings of various specifications according to claim 1 is characterized in that: A guide shaft (16) is arranged inside the spring (12), the top end of the guide shaft (16) is connected to the protective sleeve (1001), and the bottom end of the guide shaft (16) penetrates and extends to the bottom of the assembly ring (1002).

7. The test fixture for detecting the separation force of inner and outer rings of suspension bearings of various specifications according to claim 2 is characterized in that: A guide bucket (17) is fixedly connected to the inner wall of the protective sleeve (1001), and the guide bucket (17) is located on the top of the vibration motor (13).

8. The test fixture for detecting the separation force of inner and outer rings of suspension bearings of various specifications according to claim 1 is characterized in that: An infrared distance measuring sensor (18) is installed on one opposite side of the two card boards (503), and the infrared distance measuring sensor (18) is connected to the processor (11) by signal.

Images