An online sampling and testing device for the inner diameter of a bearing housing

Abstract

This invention discloses an online sampling and inspection device for the inner diameter of bearing housings, relating to the field of bearing housing inspection technology. It includes a linear transport unit for clamping and limiting the bearing housing located in the clamping position and driving the bearing housing in linear motion; a sampling and inspection unit that moves synchronously with the laterally moving bearing housing and performs sampling and inspection of the inner diameter of the bearing housing during this process; and a feeding and conveying unit for receiving the bearing housing after stamping and stretching and conveying it to the clamping position. This equipment can automatically and continuously perform inner diameter sampling and inspection on the formed bearing housings, effectively reducing labor intensity, increasing inspection efficiency, and facilitating the timely detection of product quality problems.

Description

Technical Field

[0001] This invention relates to the field of bearing housing testing technology, and in particular to an online sampling and testing device for the inner diameter of bearing housings. Background Technology

[0002] The bearing housing for idler rollers is usually formed from metal discs through multiple stamping, stretching, shaping, punching, and trimming steps using a mold.

[0003] In actual production, the inner diameter of the bearing housing often changes during stamping due to wear of the die head, improper control of process parameters, etc., resulting in the produced bearing housing not meeting the standard requirements. To avoid producing a large number of unqualified products, existing technicians usually use a Marposs measuring instrument (including a detection probe and a control cabinet electrically connected to it, with two retractable contact heads symmetrically arranged on the detection probe, the two contact heads contacting the inner wall of the bearing housing, and the distance between the outermost ends of the two contact heads is the detected inner diameter of the bearing housing) to sample and inspect the inner diameter of the produced bearing housing at regular intervals (our company generally performs inspections twice a day). However, manual sampling inspection is cumbersome and inefficient. Therefore, this application provides an online sampling inspection device for the inner diameter of bearing housing to meet the needs. Summary of the Invention

[0004] The purpose of this application is to provide an online sampling and testing device for the inner diameter of bearing housings, which solves the technical problems of the cumbersome and inefficient nature of existing manual sampling and testing methods.

[0005] To achieve the above objectives, this application provides the following technical solution: an online sampling and testing device for the inner diameter of a bearing housing, comprising...

[0006] Linear transport unit: used to clamp and limit the bearing housing located in the clamping position, and drive the bearing housing to move linearly;

[0007] Sampling inspection unit: moves synchronously with the lateral bearing housing and completes the sampling inspection of the inner diameter of the bearing housing during this process;

[0008] Feeding and conveying unit: Used to receive the bearing housing after stamping and stretching and convey it to the clamping position.

[0009] Preferably, the linear transport unit includes two conveyors arranged opposite to each other and mounted on a mounting frame. The two conveyors move synchronously and in opposite directions. Clamping plates are provided at corresponding positions on the moving parts of the two conveyors. Two L-shaped support plates for supporting bearing seats are installed opposite to each other between the opposite ends of the two conveyors. A guide plate is connected to the right end of the two L-shaped support plates.

[0010] The sampling and testing unit includes a mounting plate mounted on the mounting frame. Two sprockets connected to a chain are mounted on the mounting plate. One of the sprockets is connected to the output shaft of a drive motor, which is mounted on the mounting plate. An upper mounting ring is fixed to the chain plate and slidably sleeved on a column. A detection probe is mounted on the upper end of the column. A compression spring is sleeved on the column, with its two ends fixedly connected to a lower mounting ring and the upper mounting ring, respectively. The lower mounting ring is mounted on the column. A universal ball bearing is mounted on the lower end of the column. A lifting plate is fixedly mounted between the two sprockets. A first rising slope and a descending slope are respectively arranged on the left and right sides of the lifting plate, connected by a first detection plane.

[0011] Preferably, it also includes several second ascending ramps, and the two adjacent second ascending ramps are connected by a second detection plane as well as the rightmost second ascending ramp and the descending ramp. From left to right, the height of the second ascending ramps continuously increases.

[0012] Preferably, it also includes a plurality of tooth groups disposed on the lifting plate, wherein each of the plurality of tooth groups corresponds one-to-one with a plurality of second rising inclined surfaces, and each tooth group includes a plurality of vertically arranged racks;

[0013] The lower mounting ring is sleeved around the periphery of the column, and the lower end of the lower mounting ring is rotatably connected to a gear, which is fixedly sleeved on the column.

[0014] Preferably, the toothed assembly includes several first toothed assemblies and several second toothed assemblies of the same number. Several first toothed assemblies are fixedly installed on a first plate body located at the rear end of the lifting plate, and several second toothed assemblies are fixedly installed on a second plate body located at the front end of the lifting plate.

[0015] A conductive slip ring is installed on the column above the upper mounting ring, and the fixed end of the conductive slip ring is connected to the connecting wire of the detection probe, while the rotating end of the conductive slip ring is electrically connected to the control cabinet through the connecting wire.

[0016] A fastener is provided between the upper mounting ring and the column. When the gear and the tooth assembly are not in contact, the column will not rotate relative to the upper mounting ring, but the longitudinal movement of the column will not be affected.

[0017] Preferably, the fastener can be configured as an elastic fastening sleeve, the outer wall of the elastic fastening sleeve being fixedly connected to the inner ring wall of the upper mounting ring, and the inner wall of the elastic fastening sleeve being pressed and abutting against the outer wall of the column.

[0018] Preferably, it also includes a blocking and limiting unit for restricting the bearing housing at the clamping position, so as to facilitate the precise clamping of the bearing housing by the clamping plate in the subsequent process.

[0019] Preferably, the blocking and limiting unit includes a U-shaped plate fixedly installed at the lower end of the feed inlets of the two L-shaped support plates, and the U-shaped plate is slidably penetrated by the column. A retaining ring is fixed on the column, and the retaining ring is connected to the U-shaped plate by a blocking spring. A stop block is fixed at the upper end of the column, and the end face of the stop block that contacts the bearing seat is set as an inclined surface. The upper end of the stop block is located above the upper end of the L-shaped support plate.

[0020] Preferably, the feeding and conveying unit includes an inclined guide plate and a belt conveyor connected to the lower end of the guide plate and arranged horizontally. The upper end of the guide plate is provided with a material trough, and the material trough is configured as a figure-eight structure.

[0021] In summary, the technical effects and advantages of this invention are as follows:

[0022] 1. The present invention has a reasonable structure. This equipment can automatically and continuously sample and inspect the inner diameter of the formed bearing housing, which can effectively reduce labor intensity, improve inspection efficiency, and help to detect product quality problems in a timely manner.

[0023] 2. In this invention, multiple second detection planes and multiple gradually rising second ascending slopes are also provided, so that the detection probe can perform multiple rising detections, making the detection more comprehensive;

[0024] 3. In this invention, the detection probe can perform a rotating and upward detection motion, and can detect multiple longitudinal movements of the bearing housing inner diameter cavity, thereby improving the detection range and avoiding missed detections. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a top view of the structure of the present invention;

[0027] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of the sampling and testing unit;

[0029] Figure 4for Figure 3 Schematic diagram of the rear view structure of the sampling and testing unit;

[0030] Figure 5 for Figure 2 Schematic diagram of the middle blocking and limiting unit structure;

[0031] Figure 6 for Figure 2 Schematic diagram of the feed conveyor unit.

[0032] In the diagram: 1. Feeding and conveying unit; 2. Linear conveying unit; 3. Alarm; 4. Sampling and inspection unit; 5. Blocking and limiting unit; 101. Guide plate; 102. Belt conveyor; 103. Material trough; 21. Conveyor; 22. L-shaped support plate; 23. Clamping plate; 24. Mounting frame; 25. Guide inclined plate; 41. Mounting plate; 42. Sprocket; 43. Chain; 44. Lifting plate; 45. Column; 46. Detection probe; 47. Upper mounting ring; 48. Fastener; 4 9. Compression spring; 410. Lower mounting ring; 411. Gear; 412. First plate; 413. First locking gear assembly; 414. Second plate; 415. Second locking gear assembly; 416. Conductive slip ring; 417. Universal ball bearing; 441. First rising ramp; 442. First detection plane; 443. Falling ramp; 444. Second rising ramp; 445. Second detection plane; 51. U-shaped plate; 52. Column; 53. Retaining ring; 54. Stop block; 55. Blocking spring. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example: Reference Figure 1-2 The illustrated online sampling and testing device for the inner diameter of a bearing housing includes...

[0035] Linear transport unit 2: used to clamp and limit the bearing housing located in the clamping position, and drive the bearing housing to move linearly;

[0036] Sampling inspection unit 4: moves synchronously with the lateral bearing housing and completes the sampling inspection of the inner diameter of the bearing housing during this process;

[0037] Feeding and conveying unit 1: Used to receive the bearing housing after stamping and stretching and convey it to the clamping position.

[0038] As a preferred embodiment of this example, Figure 1-3 As shown, the linear transport unit 2 includes two conveyors 21 arranged opposite to each other and mounted on the mounting frame 24. The two conveyors 21 move synchronously and in opposite directions. Clamping plates 23 are provided at corresponding positions on the moving parts of the two conveyors 21. Two L-shaped support plates 22 for supporting bearing seats are installed opposite to each other between the opposite ends of the two conveyors 21. The right ends of the two L-shaped support plates 22 are connected to guide inclined plates 25.

[0039] The sampling and testing unit 4 includes a mounting plate 41 mounted on a mounting frame 24. Two sprockets 42 connected to a chain 43 are mounted on the mounting plate 41. One of the sprockets 42 is connected to the output shaft of a drive motor. The drive motor is mounted on the mounting plate 41. An upper mounting ring 47 is fixed on the chain plate of the chain 43 and is slidably sleeved on a column 45. A detection probe 46 is mounted on the upper end of the column 45. A compression spring 49 is sleeved on the column 45, and the two ends of the compression spring 49 are fixedly connected to a lower mounting ring 410 and an upper mounting ring 47, respectively. The lower mounting ring 410 is mounted on the column 45. A universal ball bearing 417 is mounted on the lower end of the column 45. A lifting plate 44 is fixedly mounted between the two sprockets 42. A first rising slope 441 and a falling slope 443 are respectively arranged on the left and right sides of the lifting plate 44. The first rising slope 441 and the falling slope 443 are connected by a first detection plane 442.

[0040] During use, the bearing seat, after being stretched under pressure, is conveyed to the clamping position by the feeding and conveying unit 1. At this time, the two clamping plates 23, which are running and positioned opposite each other, clamp the bearing seat and drive it to move laterally. Simultaneously, the chain 43 drives the detection probe 46 to perform a return motion. The running speed of the detection probe 46 is the same as the speed at which the bearing seat is clamped and moved. When the detection probe 46 is above the column 45 and moves horizontally, the lower end of the universal ball 417 contacts the first rising inclined surface 441. At this time, the detection probe 46 moves upward and compresses the spring 49, and finally inserts into the inner diameter cavity of the bearing seat. After insertion, the universal ball 417 moves to the first detection plane 442. At this time, the detection probe 46 and the bearing seat are in contact. The bearing housings being tested remain relatively stationary while moving laterally synchronously together. Since the detection probe 46 requires a certain reaction time, a first detection plane 442 is set to keep the position between the detection probe 46 and the bearing housing being tested stationary, providing sufficient detection time. The length of the first detection plane 442 can be set according to actual needs to extend or shorten the detection time. After the detection is completed, the universal ball 417 will move to the descending inclined plane 443. At this time, under the action of the compression spring 49, the detection probe 46 moves vertically downward and finally moves out of the inner diameter cavity of the bearing housing. At this time, the sampling inspection is completed. This process is repeated to perform continuous sampling inspection, which can effectively reduce labor intensity, improve detection efficiency, and facilitate the timely detection of product quality problems.

[0041] It is important to note the following: First, the conveyor 21 is a chain plate conveyor, with the chain plate as its moving part; second, the detection probe 46 moves horizontally during insertion and separation from the bearing seat; third, the detection probe 46 is electrically connected to the control cabinet used with it, and the detection data can be directly displayed on the monitor installed on it. The control cabinet can be directly installed on the conveyor 21 for easy observation of the detection data. The control cabinet is also electrically connected to the alarm 3. When a non-conforming product is detected, the control cabinet can directly control the alarm to sound an alarm and simultaneously stop the entire detection line until technicians find and resolve the problem, at which point operation can resume; fourth, the wiring terminal of the detection probe 46 can be connected to the fixed end of the conductive slip ring 416, while the rotating end of the conductive slip ring 416 can be electrically connected to the control cabinet via a connecting wire, preventing the chain from winding around the detection probe 46 during its looping motion; fifth, the lower mounting ring 410 can be rotatably mounted on the column 45, or it can be fixedly connected or connected in other ways.

[0042] As a preferred embodiment of this example, Figure 3 As shown, it also includes several second ascending ramps 444. The first and last of the adjacent second ascending ramps 444, as well as the rightmost second ascending ramp 444 and descending ramp 443, are connected by a second detection plane 445. From left to right, the height of the second ascending ramps 444 continuously increases.

[0043] Since the inner diameter cavity of the bearing housing has a certain depth, in order to ensure that the inner diameter of the bearing housing at different heights meets the production standards, it is necessary to test the inner diameter of the bearing housing at different heights. Therefore, several second rising ramps 444 and second detection planes 445 are set up. After the detection probe 46 is inserted into the bearing housing for one test, its universal ball 417 will move upward along the adjacent second rising ramps 444, so that the detection probe 46 rises a certain distance and is tested again. The detection probe 46 can perform multiple rising tests, making the test more comprehensive.

[0044] It should be noted that the above-mentioned test can only be performed by moving up and down in one longitudinal direction within the inner diameter cavity of the bearing housing. It cannot be performed by moving up and down in multiple longitudinal directions, and its detection range is small, which can easily lead to missed detections.

[0045] As a preferred embodiment of this example, Figure 3 As shown, it also includes several tooth groups set on the lifting plate 44, and the several tooth groups correspond one-to-one with several second rising inclined surfaces 444. The tooth groups include several vertically arranged racks.

[0046] The lower mounting ring 410 is sleeved on the outer periphery of the column 45. The lower end of the lower mounting ring 410 is rotatably connected to the gear 411, and the gear 411 is fixedly sleeved on the column 45.

[0047] To enable the detection probe 46 to perform multiple longitudinal movement detections on the inner diameter cavity of the bearing housing, a rack and gear 411 are provided. When the universal ball 417 moves to the second rising inclined plane 444, the transverse movement gear 411 on its column 45 will contact the corresponding rack, ultimately driving the detection probe 46 to rotate and rise. When the universal ball 417 moves to the second detection plane, the gear 411 and the rack separate, and the detection probe 46 does not rotate. The two contact points on the detection probe 46 remain stationary with the inner diameter cavity wall of the bearing housing for detection. The detection probe 46 can rotate and rise, enabling multiple longitudinal movement detections on the inner diameter cavity of the bearing housing, improving the detection range and avoiding missed detections.

[0048] As a preferred embodiment of this example, Figure 3 and Figure 4 As shown, the tooth assembly includes several first tooth assemblies 413 and several second tooth assemblies 415 of the same number. Several first tooth assemblies 413 are fixedly installed on the first plate 412 at the rear end of the lifting plate 44, and several second tooth assemblies 415 are fixedly installed on the second plate 414 at the front end of the lifting plate 44.

[0049] A conductive slip ring 416 is installed on the column 45 above the upper mounting ring 47. The fixed end of the conductive slip ring 416 is connected to the connecting wire of the detection probe 46, and the rotating end of the conductive slip ring 416 is electrically connected to the control cabinet through the connecting wire.

[0050] A fastener 48 is provided between the upper mounting ring 47 and the column 45. When the gear 411 and the tooth assembly are not in contact, it can ensure that the column 45 does not rotate relative to the upper mounting ring 47, but does not affect the longitudinal movement of the column 45.

[0051] When the detection probe 46 is electrically connected to the control cabinet through the cooperation of the conductive slip ring 416 and the connecting wire, in order to avoid the wire winding phenomenon, several first tooth groups 413 and several second tooth groups 415 of the same number are respectively installed on the first plate 412 and the second plate 414 arranged in front and behind. When the gear 411 contacts the several first tooth groups 413 of the same number on the first plate 412, the column 45 rotates and the wire winding phenomenon occurs. When the column 45 moves to the position of the second plate 414, the gear 411 contacts the second tooth group 415. At this time, the gear 411 moves in the opposite direction and finally returns to its original position. At this time, the wire winding phenomenon is eliminated. In the whole process, when the gear 411 and the tooth group are in a non-contact state, it can be ensured that the column 45 does not rotate relative to the mounting ring 47, avoiding the angle deflection of the column during the movement and causing subsequent wire winding phenomenon.

[0052] As a preferred embodiment of this example, Figure 3 As shown, the fastener 48 can be configured as an elastic fastening sleeve. The outer wall of the elastic fastening sleeve is fixedly connected to the inner ring wall of the upper mounting ring 47. The inner wall of the elastic fastening sleeve is pressed against the outer wall of the column 45. The fastener 48 is configured as an elastic fastening sleeve, which has a simple structure and low cost. Through its elastic pressing force, the column 45 is kept stable and does not rotate actively. However, it does not affect the rotation of the column 45 under the cooperation of the transversely moving gear 411 and the toothed gear group. At the same time, it does not affect the upward movement of the column 45 relative to the upper mounting ring 47.

[0053] As a preferred embodiment of this example, Figure 2 As shown, it also includes a blocking and limiting unit 5, which is used to limit the bearing seat at the clamping position, so as to facilitate the subsequent precise clamping of the bearing seat by the clamping plate 23.

[0054] As a preferred embodiment of this example, Figure 5 As shown, the blocking and limiting unit 5 includes a U-shaped plate 51 fixedly installed at the lower end of the feed inlet of the two L-shaped support plates 22, and the U-shaped plate 51 is slidably penetrated by the column 52. A retaining ring 53 is fixed on the column 52, and the retaining ring 53 is connected to the U-shaped plate 51 by a blocking spring 55. A stop block 54 is fixed at the upper end of the column 52, and the end face of the stop block 54 that contacts the bearing seat is set as an inclined surface. The upper end of the stop block 54 is located above the upper end of the L-shaped support plate 22. When the feeding and conveying unit 1 transports the bearing seat to the clamping position, the end of the bearing seat will contact the inclined surface, and the inclined surface forms a blocking and limiting effect on the bearing seat. When the two clamping plates 23 are in motion and are arranged opposite to each other, they clamp the bearing seat, and the end of the bearing seat forms a strong compression with the inclined surface, and finally overcomes the elastic force of the blocking spring 55 to drive the bearing seat to move laterally.

[0055] As a preferred embodiment of this example, Figure 6 As shown, the feeding and conveying unit 1 includes an inclined guide plate 101 and a belt conveyor 102 connected to the lower end of the guide plate 101 and horizontally arranged. The upper end of the guide plate 101 is horizontally provided with a material trough 103, and the material trough 103 is set with a figure-eight structure. The formed bearing seat is pushed onto the material trough 103 and slides down along the inclined surface of the guide plate 101 onto the belt conveyor 102, and is conveyed by the belt conveyor 102 to the clamping position (after the bearing seat moves to the clamping position and contacts the inclined surface, due to the obstruction, although the belt is still running, the position of the bearing seat remains unchanged).

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An online sampling and testing device for the inner diameter of a bearing housing, characterized in that: include Linear transport unit (2): used to clamp and limit the bearing housing located in the clamping position, and drive the bearing housing to move linearly; Sampling inspection unit (4): moves synchronously with the bearing housing that moves laterally, and completes the sampling inspection of the inner diameter of the bearing housing during this process; Feeding and conveying unit (1): used to receive the bearing seat after stamping and stretching and convey it to the clamping position; The linear transport unit (2) includes two conveyors (21) arranged opposite to each other and mounted on the mounting frame (24). The two conveyors (21) move synchronously and in opposite directions. Clamping plates (23) are provided at corresponding positions on the moving parts of the two conveyors (21). Two L-shaped support plates (22) for supporting bearing seats are installed opposite to each other between the opposite ends of the two conveyors (21). The right ends of the two L-shaped support plates (22) are connected to guide plates (25). The sampling detection unit (4) includes a mounting plate (41) mounted on the mounting frame (24). Two sprockets (42) connected to a chain (43) are mounted on the mounting plate (41). One of the sprockets (42) is connected to the output shaft of a drive motor. The drive motor is mounted on the mounting plate (41). An upper mounting ring (47) is fixed on the chain plate of the chain (43). The upper mounting ring (47) is slidably sleeved on the column (45). A detection probe (46) is mounted on the upper end of the column (45). A compression spring is sleeved on the column (45). (49), and the two ends of the compression spring (49) are fixedly connected to the lower mounting ring (410) and the upper mounting ring (47) respectively. The lower mounting ring (410) is mounted on the column (45). The lower end of the column (45) is equipped with a universal ball bearing (417). A lifting plate (44) is fixedly installed between the two sprockets (42). The lifting plate (44) is provided with a first rising slope (441) and a falling slope (443) on the left and right sides respectively. The first rising slope (441) and the falling slope (443) are connected through the first detection plane (442). When the detection probe (46) is located above the column (45) and moves horizontally, the lower end of the universal ball (417) contacts the first rising inclined surface (441). At this time, the detection probe (46) moves upward and compresses the compression spring (49), and finally inserts into the inner diameter cavity of the bearing seat. After insertion, the universal ball (417) moves to the first detection plane (442). At this time, the detection probe (46) and the bearing seat being detected remain relatively stationary and move horizontally synchronously together.

2. The online sampling and testing equipment for the inner diameter of a bearing housing according to claim 1, characterized in that: It also includes several second ascending ramps (444). The two ends of adjacent second ascending ramps (444) and the rightmost second ascending ramp (444) and the descending ramp (443) are connected by a second detection plane (445). From left to right, the height of the second ascending ramps (444) continuously increases. The second rising ramp (444) on the far left and the first rising ramp (441) are connected by the first detection plane (442).

3. The online sampling and testing equipment for the inner diameter of a bearing housing according to claim 2, characterized in that: It also includes a plurality of tooth groups disposed on the lifting plate (44), each of the plurality of tooth groups corresponding one-to-one with a plurality of second rising inclined surfaces (444), and each tooth group includes a plurality of vertically arranged racks; The lower mounting ring (410) is sleeved on the periphery of the column (45), and the lower end of the lower mounting ring (410) is rotatably connected to a gear (411), and the gear (411) is fixedly sleeved on the column (45). When the universal ball (417) moves to the second rising inclined plane (444), the gear (411) set on the column (45) and moving laterally will contact the corresponding rack and eventually drive the detection probe (46) to rotate upward. When the universal ball (417) moves to the second detection plane (445), the gear (411) and the rack will separate from each other, and the detection probe (46) will not rotate.

4. The online sampling and testing equipment for the inner diameter of a bearing housing according to claim 3, characterized in that: The plurality of tooth groups include a plurality of first tooth groups (413) and a plurality of second tooth groups (415) of the same number. The plurality of first tooth groups (413) are fixedly installed on the first plate (412) provided at the rear end of the lifting plate (44), and the plurality of second tooth groups (415) are fixedly installed on the second plate (414) provided at the front end of the lifting plate (44). The column (45) is equipped with a conductive slip ring (416) above the upper mounting ring (47), and the fixed end of the conductive slip ring (416) is connected to the connecting wire of the detection probe (46), and the rotating end of the conductive slip ring (416) is electrically connected to the control cabinet through the connecting wire. A fastener (48) is provided between the upper mounting ring (47) and the column (45). When the gear (411) and the tooth assembly are in a non-contact state, it can ensure that the column (45) does not rotate relative to the upper mounting ring (47), but does not affect the longitudinal movement of the column (45).

5. The online sampling and testing equipment for the inner diameter of a bearing housing according to claim 4, characterized in that: The fastener (48) is configured as an elastic fastening sleeve, the outer wall of the elastic fastening sleeve is fixedly connected to the inner ring wall of the upper mounting ring (47), and the inner wall of the elastic fastening sleeve is pressed against the outer wall of the column (45).

6. The online sampling and testing equipment for the inner diameter of a bearing housing according to claim 1, characterized in that: It also includes a blocking and limiting unit (5) to restrict the bearing seat at the clamping position, so as to facilitate the precise clamping of the bearing seat by the clamping plate (23) in the subsequent process.

7. The online sampling and testing equipment for the inner diameter of a bearing housing according to claim 6, characterized in that: The blocking and limiting unit (5) includes a U-shaped plate (51) fixedly installed at the lower end of the feed inlet of the two L-shaped support plates (22), and the U-shaped plate (51) is slidably penetrated by the column (52). A retaining ring (53) is fixed on the column (52), and the retaining ring (53) is connected to the U-shaped plate (51) by a blocking spring (55). A stop block (54) is fixed at the upper end of the column (52), and the end face of the stop block (54) that contacts the bearing seat is set as an inclined surface. The upper end of the stop block (54) is located above the upper end of the L-shaped support plate (22).

8. The online sampling and testing equipment for the inner diameter of a bearing housing according to claim 1, characterized in that: The feeding and conveying unit (1) includes an inclined guide plate (101) and a belt conveyor (102) connected to the lower end of the guide plate (101) and horizontally arranged. The upper end of the guide plate (101) is provided with a material trough (103), and the material trough (103) is configured as a figure-eight structure.

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