A high-precision bearing seat coaxiality detection device

Abstract

The utility model discloses a high accuracy bearing seat coaxality detection device, including base, mounting panel, bottom plate, rotating plate, micrometer and drive assembly, be horizontally equipped with mounting panel on the left side of base upper surface, and the bearing seat is horizontally installed on the mounting panel, and ensure its axis along horizontal lateral arrangement, be horizontally equipped with bottom plate on the right side of base upper surface, and bottom plate does vertical up and down motion through the lifting assembly, be vertically longitudinally equipped with rotating plate on the left side of bottom plate upper surface, and rotating plate does horizontal lateral motion and around self axial rotation through drive assembly, and ensure rotating plate and bearing seat coaxial heart arrangement through bottom plate lifting, be symmetrically equipped with the side plate on rotating plate left side surface up and down interval, and be vertically equipped with the air cylinder on every the inner surface of side plate, and the telescopic end of every air cylinder all extends out corresponding side plate, and is connected with corresponding micrometer fixed end respectively. The utility model discloses can be applicable to the coaxality detection of different specifications bearing seat, and the application range is wide.

Description

Technical Field

[0001] This utility model relates to the field of bearing housing testing technology, specifically to a high-precision bearing housing coaxiality testing device. Background Technology

[0002] Bearing housings are key components in mechanical systems used to fix and support bearings. Their function is to ensure that the bearings work properly in their predetermined positions, bear loads and transmit them to the mechanical structure, while reducing friction, wear and noise. Coaxiality testing is a core part of bearing housing manufacturing and assembly. Its purpose is to ensure the smooth operation, precise fit and long-term reliability of rotating parts by controlling axial deviation.

[0003] Currently, the coaxiality testing devices for bearing housings generally involve placing the bearing housing to be tested horizontally, then placing the probe of a dial indicator against the circumference of the inner bore of the bearing housing. By rotating the dial indicator, the change in the dial indicator needle can be used to determine whether an error exists. However, existing coaxiality testing devices generally can only test bearing housings of the same specification, which has limitations. Therefore, the above problems urgently need to be solved. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a high-precision bearing housing coaxiality detection device. The bearing housing is placed horizontally on the mounting plate and screwed into the corresponding threaded hole. Then, through the cooperation of the lifting component and the driving component, the dial indicator can be driven to move vertically up and down, horizontally and laterally, and rotate with the rotating plate. The coaxiality error of the bearing housing can be judged according to the change of the dial indicator pointer. Therefore, it is applicable to the coaxiality detection of bearing housings of different specifications and has a wide range of applications.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The innovation of this invention is as follows: a high-precision bearing housing coaxiality testing device includes a base, a mounting plate, a bottom plate, a lifting assembly, a rotating plate, a side plate, a cylinder, a dial indicator, and a drive assembly; a mounting plate is horizontally and longitudinally arranged on the left side of the upper surface of the horizontally arranged base, and the bearing housing is horizontally installed in the middle position of the upper surface of the mounting plate, ensuring that its axis is horizontally arranged; a bottom plate is also horizontally arranged on the right side of the upper surface of the base, and the bottom plate moves vertically up and down on the upper surface of the base via the lifting assembly; a vertically arranged bottom plate is also located on the left side of the upper surface of the bottom plate. A circular rotating plate is arranged longitudinally, and the rotating plate moves horizontally and reciprocally on the upper surface of the base plate and rotates around its own axis through a driving component. The lifting and lowering of the base plate ensures that the rotating plate and the bearing seat are coaxially arranged. On the left side of the rotating plate, there are also side plates arranged horizontally and vertically at intervals. A cylinder is also vertically arranged in the middle of the inner surface of each side plate. The telescopic end of each cylinder extends vertically out of the corresponding side plate and is connected to the fixed end of the corresponding dial indicator. The probe of the dial indicator is then pressed against the inner circumferential surface of the bearing seat, and the coaxiality of the bearing seat is detected by driving the dial indicator to rotate and move horizontally.

[0006] Preferably, the outer surface of each side plate is aligned with the outer circumferential surface of the rotating plate, and the diameter of the rotating plate is smaller than the inner diameter of the bearing seat; the extension and retraction ends of the two cylinders move synchronously, and their tails are respectively fixedly connected to the left side of the rotating plate through stiffeners, ensuring that the two cylinders are coaxially arranged.

[0007] Preferably, several threaded holes are symmetrically and evenly spaced at the middle position of the upper surface of the mounting plate, and the position of each threaded hole corresponds to the position of the mounting hole of the corresponding bearing seat. Then, the corresponding threaded hole is selected according to the specifications of the bearing seat, and the bearing seat is screwed onto the upper surface of the mounting plate, ensuring that the axis of the bearing seat is set horizontally.

[0008] Preferably, the base is a horizontally arranged hollow cuboid structure, and inside it, vertically symmetrically arranged lifting components are arranged at intervals on the left and right sides relative to the bottom plate. The two lifting components move synchronously, and the lifting end of each lifting component extends vertically upward out of the base and is fixedly connected to the corresponding position on the lower surface of the base plate, thereby driving the base plate to move vertically up and down on the upper surface of the base.

[0009] Preferably, each of the lifting components includes a second housing, a threaded rod, a second main bevel gear, a second driven bevel gear, a second motor, and a sleeve; the inner bottom surface of the base is vertically symmetrically provided with second housings at intervals on the left and right sides relative to the bottom of the base plate, each second housing is a hollow cuboid structure, and its lower surface is vertically fixedly connected to the corresponding position of the inner bottom surface of the base, ensuring that its upper surface is in the same horizontal plane as the upper surface of the base; a circular hole is embedded in the middle of the upper surface of each second housing, and each circular hole communicates with the interior of the corresponding second housing; a threaded rod is vertically coaxially provided in the middle of the interior of each second housing, and the diameter of each threaded rod is smaller than the diameter of the corresponding circular hole, the lower end of each threaded rod is rotatably connected to the inner bottom surface of the corresponding second housing, and its upper end extends vertically upward through the circular hole to the upper surface of the corresponding second housing, and is respectively arranged without interfering with the upper surface of the corresponding second housing; a circular hole is embedded in the middle of the upper surface of each threaded rod near its lower end... Inside the second housing, a second driven bevel gear is coaxially fitted and fixed, and each of the second driven bevel gears is configured to be independent of the inner bottom surface and inner side surface of the corresponding second housing. On the outer side of each second housing, and at a position relative to the second driven bevel gear, a second motor is horizontally mounted. The output end of each second motor extends vertically toward the direction of the second driven bevel gear into the interior of the corresponding second housing, and is respectively connected to the corresponding second driven bevel gear through a second main bevel gear, thereby driving the corresponding threaded rod to rotate. At the upper end of each threaded rod, a sleeve matching a circular hole is coaxially fitted, and each sleeve is screwed to the corresponding threaded rod. Its upper end extends vertically upward through the circular hole to the upper surface of the corresponding second housing, and is fixedly connected to the lower surface of the base plate at a corresponding position. Thus, driven by the second motor, the base plate moves vertically up and down through the meshing of the second main bevel gear and the second driven bevel gear, ensuring that the axis of the rotating plate and the axis of the bearing seat are horizontally collinear.

[0010] Preferably, each sleeve also includes a sliding rod and a second sliding rail; a second sliding rail is vertically and symmetrically spaced on the left and right sides of each sleeve relative to the interior of the corresponding second housing, and each second sliding rail is fixedly connected to the inner side of the corresponding second housing; a sliding rod is horizontally arranged between the left and right outer sides of each sleeve and the corresponding second sliding rail, one end of each sliding rod is fixedly connected to the corresponding outer side of the sleeve, and the other end is matched with the corresponding second sliding rail, thereby ensuring the stability of the vertical up and down movement of the sleeve through the cooperative use of the sliding rod and the second sliding rail.

[0011] Preferably, the drive assembly includes a first housing, a gear shaft, a first main bevel gear, a first driven bevel gear, and a first motor; the first housing is a horizontally arranged hollow cylindrical structure, and is coaxially spaced on the upper surface of the right side of the rotating plate relative to the bottom plate; a gear shaft is also horizontally arranged in the middle of the interior of the first housing, and the right end of the gear shaft is coaxially rotatably connected to the right inner side of the first housing through a bearing, and the left end of the gear shaft extends horizontally to the left side of the first housing, and is coaxially rotatably connected to the left side of the first housing through a bearing, and is coaxially fixedly connected to the right side of the rotating plate; in the gear A first driven bevel gear is coaxially and fixedly mounted on the shaft relative to the interior of the first housing, and the first housing does not interfere with the rotation of the first driven bevel gear as the gear shaft rotates; a first motor is vertically mounted inside the first housing directly above the first driven bevel gear, the fixed end of the first motor is screwed to the inner top surface of the first housing, and its output end is vertically downward toward the first driven bevel gear, and is connected to the first driven bevel gear through the meshing of the first master bevel gear, so that under the drive of the first motor, through the meshing of the first master bevel gear and the first driven bevel gear, the rotating plate rotates horizontally around its own axis with the gear shaft, and drives the two dial indicators to rotate.

[0012] Preferably, the device further includes an electric push rod, a first slide rail, a slider, and a limiting plate. An electric push rod is horizontally arranged on the upper surface of the base plate relative to the right side of the first housing. The tail of the electric push rod is fixedly connected to the corresponding position on the upper surface of the base plate via a rib, and its pushing end is horizontally facing left and fixedly connected to the middle of the right outer side of the first housing near its bottom end. This drives the first housing to perform horizontal reciprocating motion along the base plate and causes the dial indicator to move horizontally with the rotating plate. Slider blocks are symmetrically arranged horizontally at intervals on the right half of the lower surface of the first housing. A first slide rail matching the slider is horizontally arranged on the upper surface of the base plate relative to each slider position. The cooperation of the first slide rail and the slider ensures the stability of the horizontal movement of the first housing. Limiting plates are respectively provided on the left and right ends of the upper surface of the base plate relative to each first slide rail, and the limiting plates limit the horizontal movement of the first housing to the left and right.

[0013] Preferably, the height of the first housing must ensure that the base plate does not interfere with the micrometer as the rotating plate rotates; the leftward limit position of the first housing must ensure that the probe of the micrometer abuts against the inner circumferential surface of the bearing seat near its left end, and its rightward limit position must ensure that the micrometer is completely detached from the bearing seat and does not interfere with the movement of the bearing seat on the mounting plate.

[0014] The beneficial effects of this utility model are as follows: This utility model places the bearing housing horizontally on the mounting plate and screws it into the corresponding threaded hole. Then, through the cooperation of the lifting component and the driving component, the dial indicator can be driven to move vertically up and down, horizontally and laterally, and rotate with the rotating plate. The coaxiality error of the bearing housing can be judged according to the change of the dial indicator pointer. Therefore, it is applicable to the coaxiality detection of bearing housings of different specifications and has a wide range of applications. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a high-precision bearing housing coaxiality detection device according to the present invention.

[0017] Figure 2 for Figure 1 A schematic diagram of the lifting assembly.

[0018] The components are as follows: 1-base; 2-mounting plate; 3-bearing seat; 4-base plate; 5-lifting assembly; 6-first housing; 7-gear shaft; 8-first main bevel gear; 9-first driven bevel gear; 10-first motor; 11-rotating plate; 12-side plate; 13-cylinder; 14-dial indicator; 15-electric push rod; 16-first slide rail; 17-slider; 51-second housing; 52-threaded rod; 53-second main bevel gear; 54-second driven bevel gear; 55-second motor; 56-sleeve; 57-slide rod; 58-second slide rail. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below through specific embodiments.

[0020] This utility model discloses a high-precision bearing housing coaxiality testing device, comprising a base 1, a mounting plate 2, a bottom plate 4, a lifting assembly 5, a rotating plate 11, a side plate 12, a cylinder 13, a dial indicator 14, and a drive assembly; the specific structure is as follows: Figure 1 , Figure 2As shown, a mounting plate 2 is provided on the upper surface of the horizontally positioned base 1, on the left side, and the bearing seat 3 is horizontally mounted in the middle of the upper surface of the mounting plate 2, ensuring that its axis is set horizontally. Several threaded holes are also symmetrically and evenly distributed at intervals in the middle of the upper surface of the mounting plate 2, and the opening position of each threaded hole corresponds to the mounting hole position of the bearing seat 3. Then, according to the specifications of the bearing seat 3, the corresponding threaded hole is selected, and the bearing seat 3 is screwed onto the upper surface of the mounting plate 2, ensuring that the axis of the bearing seat 3 is set horizontally.

[0021] This utility model also has a horizontal base plate 4 on the right side of the upper surface of the base 1, and the base plate 4 moves vertically up and down on the upper surface of the base 1 via a lifting assembly 5; for example Figure 1 As shown, a circular rotating plate 11 is vertically arranged on the left side of the upper surface of the base plate 4. The rotating plate 11 moves horizontally and reciprocally on the upper surface of the base plate 4 and rotates around its own axis through a drive assembly. The lifting and lowering of the base plate 4 ensures that the rotating plate 11 and the bearing seat 3 are coaxially arranged. On the left side of the rotating plate 11, side plates 12 are arranged horizontally and vertically symmetrically at intervals. A cylinder 13 is vertically arranged in the middle of the inner surface of each side plate 12. The telescopic end of each cylinder 13 extends vertically out of the corresponding side plate 12 and is connected to the fixed end of the corresponding dial indicator 14. The probe of the dial indicator 14 is then pressed against the inner circumferential surface of the bearing seat 3. The coaxiality of the bearing seat 3 is detected by driving the dial indicator 14 to rotate and move horizontally.

[0022] like Figure 1 As shown, the outer surface of each side plate 12 is aligned with the outer circumferential surface of the rotating plate 11, and the diameter of the rotating plate 11 is smaller than the inner diameter of the bearing seat 3; the extension and retraction ends of the two cylinders 13 move synchronously, and their tails are respectively fixedly connected to the left side of the rotating plate 11 through stiffeners, ensuring that the two cylinders 13 are coaxially arranged.

[0023] The base 1 of this utility model is a horizontally arranged hollow cuboid structure, and inside it, vertically symmetrically arranged lifting components 5 at intervals on the left and right sides relative to the bottom plate 4, such as... Figure 1 , Figure 2 As shown, the two lifting components 5 move synchronously, and the lifting end of each lifting component 5 extends vertically upward from the base 1 and is fixedly connected to the corresponding position on the lower surface of the base plate 4, thereby driving the base plate 4 to move vertically up and down on the upper surface of the base 1.

[0024] Each lifting component 5 includes a second housing 51, a threaded rod 52, a second main bevel gear 53, a second driven bevel gear 54, a second motor 55, a sleeve 56, a slide rod 57, and a second slide rail 58; as shown Figure 1 , Figure 2As shown, on the inner bottom surface of the base 1, vertically symmetrical second boxes 51 are arranged at intervals on the left and right sides, directly below the base plate 4. Each second box 51 is a hollow cuboid structure, and its lower surface is vertically fixed to the corresponding position of the inner bottom surface of the base 1, ensuring that its upper surface is in the same horizontal plane as the upper surface of the base 1. A circular hole is also embedded in the middle of the upper surface of each second box 51, and each circular hole is connected to the interior of the corresponding second box 51. A threaded rod 52 is also vertically and coaxially arranged in the middle of the interior of each second box 51, and the diameter of each threaded rod 52 is smaller than the diameter of the corresponding circular hole. The lower end of each threaded rod 52 is rotatably connected to the inner bottom surface of the corresponding second box 51, and its upper end extends vertically upward through the circular hole to the upper surface of the corresponding second box 51, and is respectively set without interfering with the upper surface of the corresponding second box 51. like Figure 1 , Figure 2 As shown, a second driven bevel gear 54 is coaxially sleeved and fixed on the lower end of each threaded rod 52 relative to the interior of the second housing 51, and each second driven bevel gear 54 is respectively configured to not interfere with the inner bottom surface and inner side surface of the corresponding second housing 51; a second motor 55 is also horizontally arranged on an outer side of each second housing 51 and relative to the position of the second driven bevel gear 54, and the output end of each second motor 55 extends vertically toward the direction of the second driven bevel gear 54 into the interior of the corresponding second housing 51, and is respectively connected to the corresponding second driven bevel gear 54 through the second main bevel gear 53, thereby driving the corresponding threaded rod 52 to rotate; like Figure 1 , Figure 2 As shown, a sleeve 56 matching the circular hole is coaxially sleeved at the upper end of each threaded rod 52. Each sleeve 56 is screwed to the corresponding threaded rod 52, and its upper end extends vertically upward through the circular hole to the upper surface of the corresponding second housing 51, and is fixedly connected to the lower surface of the base plate 4 at the corresponding position. Under the drive of the second motor 55, the base plate 4 is driven to move vertically up and down through the meshing of the second main bevel gear 53 and the second driven bevel gear 54, so as to ensure that the axis of the rotating plate 11 is horizontally collinear with the axis of the bearing seat 3.

[0025] like Figure 1 , Figure 2As shown, on the left and right sides of each sleeve 56, a second slide rail 58 is vertically and symmetrically spaced relative to the interior of the corresponding second housing 51, and each second slide rail 58 is fixedly connected to the inner side of the corresponding second housing 51; a slide rod 57 is horizontally arranged between the left and right outer sides of each sleeve 56 and the corresponding second slide rail 58, one end of each slide rod 57 is fixedly connected to the corresponding outer side of the corresponding sleeve 56, and the other end is matched with the corresponding second slide rail 58. Thus, through the cooperation of the slide rod 57 and the second slide rail 58, the stability of the vertical up and down movement of the sleeve 56 is ensured.

[0026] The drive assembly of this utility model includes a first housing 6, a gear shaft 7, a first main bevel gear 8, a first driven bevel gear 9, a first motor 10, an electric push rod 15, a first slide rail 16, a slider 17, and a limiting plate; as shown Figure 1 As shown, the first housing 6 is a horizontally arranged hollow cylindrical structure, and is coaxially spaced on the upper surface of the rotating plate 11 relative to the bottom plate 4 on the right side. A gear shaft 7 is also horizontally arranged in the middle of the interior of the first housing 6. The right end of the gear shaft 7 is rotatably connected to the right inner side of the first housing 6 via a bearing. The left end of the gear shaft 7 extends horizontally to the left side of the first housing 6, and is rotatably connected to the left side of the first housing 6 via a bearing, and is coaxially connected to the right side of the rotating plate 11. A fixed connection is provided; a first driven bevel gear 9 is coaxially and fixedly mounted on the gear shaft 7 relative to the inside of the first housing 6, and the first housing 6 does not interfere with the rotation of the first driven bevel gear 9 with the gear shaft 7; a first motor 10 is vertically mounted inside the first housing 6 directly above the first driven bevel gear 9, the fixed end of the first motor 10 is screwed to the inner top surface of the first housing 6, and its output end is vertically downward toward the first driven bevel gear 9, and is connected to the first driven bevel gear 9 through the meshing of the first master bevel gear 8. Under the drive of the first motor 10, through the meshing of the first master bevel gear 8 and the first driven bevel gear 9, the rotating plate 11 rotates horizontally around its own axis with the gear shaft 7, and drives the two dial indicators 14 to rotate.

[0027] like Figure 1As shown, an electric push rod 15 is horizontally arranged on the upper surface of the base plate 4 relative to the right side of the first housing 6. The tail of the electric push rod 15 is fixedly connected to the corresponding position of the upper surface of the base plate 4 through a rib plate, and its pushing end is horizontally set to the left and fixedly connected to the middle of the right outer side of the first housing 6 near its bottom end, thereby driving the first housing 6 to perform horizontal reciprocating motion along the base plate 4, and driving the dial indicator 14 to move horizontally with the rotating plate 11. On the lower right half of the first housing 6, sliders 17 are symmetrically arranged horizontally at intervals. On the upper surface of the base plate 4, a first slide rail 16 matching the slider 17 is horizontally arranged at each position of the slider 17. The stability of the horizontal movement of the first housing 6 is ensured by the cooperation of the first slide rail 16 and the slider 17. On the upper surface of the base plate 4, a limiting plate is provided at the left and right ends of each first slide rail 16, and the horizontal movement of the first housing 6 is limited by the limiting plate.

[0028] The height of the first housing 6 must ensure that the base plate 4 does not interfere with the micrometer 14 as the rotating plate 11 rotates; the leftward limit position of the first housing 6 must ensure that the probe of the micrometer 14 abuts against the inner circumferential surface of the bearing seat 3 near its left end, and the rightward limit position must ensure that the micrometer 14 is completely detached from the bearing seat 3 and does not interfere with the movement of the bearing seat 3 on the mounting plate 2.

[0029] The working principle of this utility model is as follows: First, select the corresponding threaded hole according to the specifications of the bearing seat 3, then place the bearing seat 3 horizontally on the mounting plate 2 and screw it into the corresponding threaded hole to ensure that the axis of the bearing seat 3 and the axis of the gear shaft 7 are in the same vertical and horizontal plane; then, under the drive of the lifting component 5, the lifting action of the base plate 4 ensures that the axis of the gear shaft 7 and the axis of the bearing seat 3 are aligned; then, through the cooperation of the electric push rod 15 and the cylinder 13, the probe of the dial indicator 14 abuts against the circumferential surface of the inner hole of the bearing seat 3. At this time, with the rotation of the rotating plate 11 and the horizontal movement of the first housing 6, the coaxiality error of the bearing seat 3 can be judged according to the pointer change of the dial indicator 14.

[0030] The beneficial effects of this utility model are as follows: This utility model places the bearing housing 3 horizontally on the mounting plate 2 and screws it into the corresponding threaded hole. Then, through the cooperation of the lifting component 5 and the driving component, the dial indicator 14 can be driven to move vertically up and down, horizontally and laterally, and rotate with the rotating plate 11. The coaxiality error of the bearing housing 3 can be judged according to the pointer change of the dial indicator 14. Therefore, it is applicable to the coaxiality detection of bearing housings 3 of different specifications and has a wide range of applications.

[0031] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the concept and scope of the present utility model. Without departing from the design concept of the present utility model, all modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope of the present utility model. The technical content for which protection is sought in the present utility model has been fully recorded in the technical requirements.

Claims

1. A high-precision bearing housing coaxiality detection device, characterized in that: The system includes a base, mounting plate, bottom plate, lifting assembly, rotating plate, side plate, cylinder, dial indicator, and drive assembly. A mounting plate is horizontally mounted longitudinally on the left side of the upper surface of the horizontally positioned base, with a bearing seat horizontally mounted in the middle of the upper surface of the mounting plate, ensuring its axis is horizontally aligned. A bottom plate is also horizontally mounted on the right side of the upper surface of the base, and this bottom plate moves vertically up and down on the upper surface of the base via the lifting assembly. A circular rotating plate is vertically mounted longitudinally on the left side of the upper surface of the bottom plate, and this rotating plate moves vertically up and down via the drive assembly. The upper surface of the base plate performs horizontal reciprocating motion and rotates around its own axis. The lifting and lowering of the base plate ensures that the rotating plate and the bearing seat are coaxially aligned. On the left side of the rotating plate, there are also side plates arranged horizontally and vertically at intervals. A cylinder is also vertically arranged in the middle of the inner surface of each side plate. The telescopic end of each cylinder extends vertically out of the corresponding side plate and is connected to the fixed end of the corresponding dial indicator. The probe of the dial indicator is then pressed against the inner circumferential surface of the bearing seat. The coaxiality of the bearing seat is detected by driving the dial indicator to rotate and move horizontally.

2. The high-precision bearing housing coaxiality detection device according to claim 1, characterized in that: The outer surface of each side plate is aligned with the outer circumferential surface of the rotating plate, and the diameter of the rotating plate is smaller than the inner diameter of the bearing seat; the extension and retraction ends of the two cylinders move synchronously, and their tails are respectively fixedly connected to the left side of the rotating plate through stiffeners, ensuring that the two cylinders are coaxial.

3. The high-precision bearing housing coaxiality detection device according to claim 1, characterized in that: Several threaded holes are symmetrically and evenly spaced at the middle position of the upper surface of the mounting plate, and the position of each threaded hole corresponds to the position of the mounting hole of the corresponding bearing seat. Then, the corresponding threaded hole is selected according to the specifications of the bearing seat, and the bearing seat is screwed onto the upper surface of the mounting plate, ensuring that the axis of the bearing seat is set horizontally.

4. The high-precision bearing housing coaxiality detection device according to claim 1, characterized in that: The base is a horizontally arranged hollow cuboid structure, and inside it, vertically symmetrically arranged lifting components are arranged at intervals on the left and right sides relative to the bottom plate. The two lifting components move synchronously, and the lifting end of each lifting component extends vertically upward out of the base and is fixedly connected to the corresponding position on the lower surface of the base plate, thereby driving the base plate to move vertically up and down on the upper surface of the base.

5. The high-precision bearing housing coaxiality detection device according to claim 4, characterized in that: Each lifting assembly includes a second housing, a threaded rod, a second main bevel gear, a second driven bevel gear, a second motor, and a sleeve. The inner bottom surface of the base is vertically symmetrically arranged with left and right intervals relative to the bottom of the base plate. Each second housing is a hollow cuboid structure, and its lower surface is vertically fixedly connected to the corresponding position of the inner bottom surface of the base, ensuring that its upper surface is on the same horizontal plane as the upper surface of the base. A circular hole is embedded in the middle of the upper surface of each second housing, and each circular hole communicates with the interior of the corresponding second housing. A threaded rod is vertically and coaxially arranged in the middle of the interior of each second housing, and the diameter of each threaded rod is smaller than the diameter of the corresponding circular hole. The lower end of each threaded rod is rotatably connected to the inner bottom surface of the corresponding second housing, and its upper end extends vertically upward through the circular hole to the upper surface of the corresponding second housing, and is respectively arranged without interfering with the upper surface of the corresponding second housing. A circular hole is embedded in the lower end of each threaded rod relative to the inner bottom surface of the base plate. Inside the second housing, a second driven bevel gear is coaxially fitted and fixed, and each of the second driven bevel gears is respectively configured to be non-interfering with the inner bottom surface and inner side surface of the corresponding second housing; on one outer side surface of each second housing and at the position of the second driven bevel gear, a second motor is also horizontally mounted, and the output end of each second motor extends vertically toward the direction of the second driven bevel gear into the interior of the corresponding second housing, and is respectively connected to the corresponding second driven bevel gear through a second main bevel gear, thereby driving the corresponding threaded rod to rotate; at the upper end of each threaded rod, a sleeve matching the circular hole is coaxially fitted, and each sleeve is screwed to the corresponding threaded rod, and its upper end extends vertically upward through the circular hole to the upper surface of the corresponding second housing, and is respectively fixedly connected to the lower surface of the bottom plate at the corresponding position, thereby driving the bottom plate to move vertically up and down under the drive of the second motor, through the meshing of the second main bevel gear and the second driven bevel gear, to ensure that the axis of the rotating plate is horizontally collinear with the axis of the bearing seat.

6. The high-precision bearing housing coaxiality detection device according to claim 5, characterized in that: Each sleeve also includes a sliding rod and a second sliding rail; on the left and right sides of each sleeve, a second sliding rail is vertically and symmetrically spaced relative to the interior of the corresponding second housing, and each second sliding rail is fixedly connected to the inner side of the corresponding second housing; a sliding rod is horizontally arranged between the left and right outer sides of each sleeve and the corresponding second sliding rail, one end of each sliding rod is fixedly connected to the corresponding outer side of the sleeve, and the other end is matched with the corresponding second sliding rail, thereby ensuring the stability of the vertical up and down movement of the sleeve through the cooperation of the sliding rod and the second sliding rail.

7. The high-precision bearing housing coaxiality detection device according to claim 1, characterized in that: The drive assembly includes a first housing, a gear shaft, a first main bevel gear, a first driven bevel gear, and a first motor. The first housing is a horizontally arranged hollow cylindrical structure, coaxially spaced on the upper surface of the right side of the rotating plate relative to the base plate. A gear shaft is horizontally arranged in the middle of the interior of the first housing. The right end of the gear shaft is coaxially rotatably connected to the right inner side of the first housing via a bearing. The left end of the gear shaft extends horizontally to the left from the left side of the first housing, and is coaxially rotatably connected to the left side of the first housing via a bearing, and is fixedly connected to the right side of the rotating plate. A first driven bevel gear is coaxially and fixedly mounted inside the first housing, and the first housing does not interfere with the rotation of the first driven bevel gear with the gear shaft. Inside the first housing, a first motor is vertically mounted directly above the first driven bevel gear. The fixed end of the first motor is screwed to the inner top surface of the first housing, and its output end is vertically downward toward the first driven bevel gear. It is connected to the first driven bevel gear through the meshing of the first master bevel gear. Thus, driven by the first motor, the rotating plate rotates horizontally around its own axis with the gear shaft through the meshing of the first master bevel gear and the first driven bevel gear, thereby driving the two dial indicators to rotate.

8. The high-precision bearing housing coaxiality detection device according to claim 7, characterized in that: It also includes an electric push rod, a first slide rail, a slider, and a limiting plate. An electric push rod is horizontally arranged on the upper surface of the base plate relative to the right side of the first housing. The tail of the electric push rod is fixedly connected to the corresponding position on the upper surface of the base plate via a rib, and its pushing end is horizontally facing left and fixedly connected to the middle of the right outer side of the first housing near its bottom end. This drives the first housing to perform horizontal reciprocating motion along the base plate and causes the dial indicator to move horizontally with the rotating plate. Slider blocks are symmetrically arranged horizontally at intervals on the right half of the lower surface of the first housing. A first slide rail matching the slider is horizontally arranged on the upper surface of the base plate relative to each slider position. The cooperation of the first slide rail and the slider ensures the stability of the horizontal movement of the first housing. Limiting plates are respectively arranged on the left and right ends of the upper surface of the base plate relative to each first slide rail, and these limiting plates limit the horizontal movement of the first housing to the left and right.

9. A high-precision bearing housing coaxiality detection device according to claim 8, characterized in that: The height of the first housing must ensure that the base plate does not interfere with the rotation of the dial indicator as the rotating plate rotates; the leftward limit position of the first housing must ensure that the probe of the dial indicator abuts against the inner circumferential surface of the bearing seat near its left end, and its rightward limit position must ensure that the dial indicator is completely detached from the bearing seat and does not interfere with the movement of the bearing seat on the mounting plate.

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