A stainless steel copper-clad bearing thermal assembly device and a bearing thermal assembly method

Abstract

The present invention discloses a stainless steel copper-clad bearing thermal assembly device and a bearing thermal assembly device method, which solves the problems of low bearing assembly precision and short service life in the prior art. The stainless steel copper-clad bearing thermal assembly device of the present invention comprises a casing and a support frame, the support frame is located in the casing, an operating platform is provided on the upper part of the support frame, a lower movement mechanism is provided on the lower part of the support frame, an upper movement mechanism and an upper assembly component are provided on the operating platform, a sealing cover that can move up and down and a heating device for heating the sealing cover are provided on the upper movement mechanism, the upper assembly component corresponds to the sealing cover, and a vacuum device is connected to the upper assembly component. The present invention adopts oxygen-free thermal assembly in a sealed environment, the assembly precision reaches 10μm, and the assembly coaxiality reaches 5μm, which is more than 10 times the precision required for ordinary assembly.

Description

Technical Field

[0001] The invention relates to the technical field of bearings, and in particular to a stainless steel copper-clad bearing thermal assembly device and a bearing thermal assembly method. Background Art

[0002] Bearings are mainly components that play the role of fixing and reducing the load friction coefficient during mechanical transmission. The present invention assembles aviation bearings by evacuating and hot-assembling stainless steel copper-clad bearings in a protective gas. It has the advantages of detecting scrap rate, completely non-oxidized working surface and greatly improved service life. Under a certain load, the number of revolutions or hours that a bearing experiences before pitting occurs is called the bearing life. However, whether in laboratory tests or in actual use, it can be clearly seen that bearings with the same appearance under the same working conditions have very different actual lifespans. In addition, there are several different definitions of bearing "life", one of which is the so-called "working life", which means that the actual life that a bearing can achieve before damage is caused by wear and tear. Damage is usually not caused by fatigue, but by wear, corrosion, seal damage and other reasons.

[0003] Existing bearing assembly equipment, such as a large turntable bearing assembly workbench with application number CN201920634909.0, uses several guide rails, moving square boxes and several supports to lift the workpiece off the ground, keep it away from debris such as iron filings and grinding wheel surfaces, and improve the fitting accuracy to a certain extent. However, it is still conventional room temperature assembly, the bearing assembly accuracy is low, and it is severely worn after long-term use and has a short life. Therefore, it is necessary to develop a new bearing installation device and installation method to improve the bearing assembly accuracy and bearing processing quality. Summary of the invention

[0004] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a stainless steel copper-clad bearing thermal assembly device and a bearing thermal assembly method, which solves the problems of low bearing assembly precision and short service life in the prior art.

[0005] The technical solution of the present invention is implemented as follows: a stainless steel copper-clad bearing thermal assembly device comprises a casing and a support frame, the support frame is located in the casing, an operating platform is provided on the upper part of the support frame, a lower movement mechanism is provided on the lower part of the support frame, an upper movement mechanism and an upper assembly component are provided on the operating platform, the upper movement mechanism is provided with a sealing cover that can move up and down and a heating device for heating the sealing cover, the upper assembly component corresponds to the sealing cover, and a vacuum pumping device is connected to the upper assembly component; the lower movement mechanism is provided with a lower assembly component that can move up and down, and the lower assembly component corresponds to the upper assembly component.

[0006] The upper movement mechanism includes a first module bracket arranged on the operating platform, an upper sliding support plate is provided on the first module bracket, the upper sliding support plate is connected to the first module bracket through a sliding mechanism, a lifting plate is provided on the upper sliding support plate, a sealing cover is fixed on the lifting plate, and a heating device is arranged on the upper sliding support plate.

[0007] The sliding mechanism includes a linear guide rail I vertically arranged on the first module bracket and a first servo motor that drives the linear guide rail I to move. The upper sliding support plate is provided with a first bracket and a second bracket. The first bracket is provided with a first camera monitoring head, and the second bracket is provided with a first infrared thermometer.

[0008] The sealing cover includes an upper cover body and a lower cover body, the upper cover body and / or the lower cover body are fixed on the upper sliding support plate of the upper movement mechanism through a lifting rod, the lower cover body is connected to the upper cover body through bolts, and a sealing ring I is provided between the upper cover body and the lower cover body, and a sealing ring II is provided on the lower end surface of the lower cover body, and the lower cover body is pressed on the operating platform by a pressing mechanism. The pressing mechanism includes a manual clamp arranged on the operating platform, and the manual clamps are correspondingly distributed around the lower cover body.

[0009] The heating device comprises a coaxial transformer, and the electromagnetic induction heating coil of the coaxial transformer is sleeved and arranged on the sealing cover without contact.

[0010] A water inlet pipe, a water outlet pipe and a resonant line tube are arranged at the lower part of the coaxial transformer; a third bracket and a fourth bracket are arranged on the operating platform, a second camera monitoring head is arranged on the third bracket, and a second infrared temperature detector is arranged on the fourth bracket.

[0011] The upper assembly component includes a support tube fixed on the operating platform, the support tube and the sealing cover are coaxially arranged, and the sealing cover can seal and cover the support tube; a positioning seat is provided on the support tube, and a positioning ring is provided on the positioning seat, and the positioning ring is coaxially arranged with the support tube, and the lower assembly component corresponds to the positioning ring and the support tube.

[0012] An air filling head and an air extraction head are arranged at the lower part of the support tube. The air filling head is connected to an external argon gas source, and the air extraction head is connected to a vacuum pumping device. Both the air filling head and the air extraction head are located within the covering range of the sealing cover.

[0013] The lower motion mechanism includes a second module bracket arranged on the support frame, the second module bracket is provided with a linear guide rail II and a second servo motor that drives the linear guide rail II to move, and the lower assembly component is arranged on the linear guide rail II; the lower assembly component includes a base and a guide sleeve arranged on the bottom surface of the operating platform, a sealing ring III is arranged between the guide sleeve and the operating platform, a positioning platform is arranged on the base, and an assembly column is arranged on the positioning platform, and the assembly column at the working position passes upward through the guide sleeve and extends into the upper assembly component.

[0014] A bearing thermal assembly method based on the stainless steel copper-clad bearing thermal assembly device, comprising the following steps:

[0015] S1: Place the workpiece: The upper motion mechanism drives the upper assembly component to the upper limit position, and the lower motion mechanism drives the lower assembly component to the lower limit position. The bearing jacket of the processed bearing is manually placed on the upper assembly component, and the bearing core is placed on the lower assembly component;

[0016] S2: Vacuuming: Press the start button, the upper motion mechanism drives the sealing cover to descend to the working position, and the manual clamp is manually operated to seal the sealing cover and the operating platform; start the vacuuming device, pump the air pressure inside the sealing cover to below 5Pa, and close the vacuuming device;

[0017] S3: Filling with argon: Fill the sealing cover with high-purity argon gas, and ensure the argon flow rate according to the process;

[0018] S4: heating the bearing jacket: starting the induction heating device, heating the bearing jacket to 800°C and then stopping the heating;

[0019] S5: Assembling the bearing: starting the motion mechanism to drive the lower assembly component to rise to the working position, and the lower assembly component pushes the bearing core into the heated bearing jacket to assemble the bearing;

[0020] S6: Cooling: Keep still for a while and wait for the bearing in step S5 to cool naturally to below 60°C;

[0021] S7: Take the workpiece: stop the argon gas, manually operate the manual clamp, start the upper motion mechanism, drive the upper assembly component to move to the upper limit position, and start the lower motion mechanism to drive the lower assembly component to move to the lower limit position, and manually take out the processed bearing;

[0022] S8: During the working process of steps S1 to S7, temperature measurement and video monitoring are carried out in real time and the working status is stored in the controller.

[0023] The present invention uses oxygen-free hot assembly in a sealed environment, and the assembly accuracy reaches 10μm, and the assembly coaxiality reaches 5μm, which is more than 10 times the accuracy required for ordinary assembly. The heating device uses electromagnetic induction heating, which is environmentally friendly and less polluting; during the assembly process, the vacuum degree in the sealing cover is ≤5Pa, and high-purity argon gas is filled, so that the bearing jacket maintains its original color, extending the service life of the bearing jacket. The upper assembly component and the lower assembly component are easy to replace, and workpieces of various sizes can be hot assembled; and the moving part is controlled by a Siemens servo motor, which is precisely controlled and accurately positioned, further ensuring the processing progress of the bearing and increasing the service life of the bearing. The bearing hot assembly method of the present invention provides a new form for bearing assembly, reduces the difficulty of installation, greatly improves the installation accuracy and bearing service life, and has a high promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 This is a schematic diagram of the present invention without a housing installed.

[0027] Figure 3 It is a schematic diagram of the connection state between the upper motion mechanism and the upper assembly component of the present invention.

[0028] Figure 4 It is a schematic diagram of the matching state of the sealing cover and the upper assembly component of the present invention.

[0029] Figure 5 It is a schematic diagram of the positioning seat and positioning ring structure of the present invention.

[0030] Figure 6 It is a schematic diagram of the connection state between the lower motion mechanism and the lower assembly component of the present invention. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figure 1 , 2As shown, in Example 1, a stainless steel copper-clad bearing thermal assembly device comprises a housing 11 and a support frame 1, the support frame 1 is located in the housing 11, and a reserved hole 16 and an observation window 17 are arranged on the upper part of the housing 11. The lower part of the housing 11 is provided with a terminal cover 18, a ground wire screw hole 19, an air switch installation position 20, a water inlet hole 21 and a water outlet hole 22, which are convenient for the installation of the device. A connecting water pipe is arranged between the water inlet hole 21 and the water inlet pipe 703, and between the water outlet hole 22 and the water outlet pipe 704. An operating platform 2 is arranged on the upper part of the support frame 1, and the support frame can adopt a square tube frame welded by square steel pipes, and the operating platform is fixed on the square tube frame by screws. A lower moving mechanism 4 is arranged at the lower part of the support frame 1, and an upper moving mechanism 3 and an upper assembly component 6 are arranged on the operating platform 2. The upper moving mechanism 3 is provided with a sealing cover 5 that can move up and down and a heating device 7 for heating the sealing cover, that is, the upper moving mechanism can drive the sealing cover and the heating device to move up and down, and the heating device preferably adopts an electromagnetic heating device. The upper assembly component 6 corresponds to the sealing cover 5, and the upper assembly component 6 is connected to a vacuum device 9, which is used to extract the air in the sealing cover to ensure that the bearing is accurately installed in an oxygen-free environment to prevent the workpiece from being heated and oxidized. The lower movement mechanism 4 is provided with a lower assembly component 8 that can move up and down. The lower assembly component 8 corresponds to the upper assembly component 6. The upper assembly component is used to support and position the bearing jacket, and the lower assembly component is used to support and position the bearing core. The lower assembly component drives the bearing core to move upward into the sealing cover to perform thermal assembly with the bearing jacket to improve the installation accuracy.

[0033] Further, if Figure 3 As shown, the upper movement mechanism 3 includes a first module bracket 301 disposed on the operating platform 2, and an upper sliding support plate 302 is disposed on the first module bracket 301. The upper sliding support plate 302 is connected to the first module bracket 301 through a sliding mechanism. Under the action of the sliding structure, the upper sliding support plate moves up and down along the first module bracket. A lifting plate 303 is connected to the upper sliding support plate 302 through bolts, and the sealing cover 5 is fixed on the lifting plate 303. The heating device 7 is disposed on the upper sliding support plate 302 to ensure that the two do not interfere with each other.

[0034] Preferably, the sliding mechanism includes a linear guide rail I 304 vertically arranged on the first module bracket 301 and a first servo motor 305 driving the linear guide rail I 304 to move. The first servo motor drives the linear guide rail I to rotate, thereby driving the upper sliding support plate 302 to move up and down. The upper sliding support plate 302 is provided with a first bracket 306 and a second bracket 307. The first bracket 306 is provided with a first camera monitoring head 308, and the second bracket 307 is provided with a first infrared thermometer 309. The first camera monitoring head 308 and the first infrared thermometer 309 monitor the temperature and other conditions of the upper sliding support plate. The upper sliding support plate has an upper upper limit position, a lower limit position and a working position on the linear guide rail I. Under the action of the first servo motor, the upper sliding support plate drives the first bracket, the second bracket, the heating device and the sealing cover to move up and down.

[0035] like Figure 4 As shown, embodiment 2 is a thermal assembly device for a stainless steel copper-clad bearing, wherein the sealing cover 5 comprises an upper cover body 501 and a lower cover body 502, wherein the upper cover body 501 and / or the lower cover body 502 are fixed to the upper sliding support plate 302 of the upper motion mechanism 3 through a lifting rod 505; three lifting rods are arranged on the upper sliding support plate, namely, lifting rod 1, lifting rod 2 and lifting rod 3, wherein the two ends of the lifting rod 1, lifting rod 2 and lifting rod 3 are provided with threads, and the upper parts of the lifting rod 1, lifting rod 2 and lifting rod 3 are fixedly connected to the upper sliding support plate through nuts; the upper parts of the lifting rod 1, lifting rod 2 and lifting rod 3 are connected to the upper cover body 501 or the lower cover body through nuts to ensure the stability of the sealing cover. The lower cover body 502 is connected to the upper cover body 501 through bolts, and a sealing ring I 503 is arranged between the upper cover body 501 and the lower cover body 502 to ensure the sealing of the sealing cover as a whole. The lower end surface of the lower cover body 502 is provided with a sealing ring II 504 to ensure the sealing performance when the sealing cover contacts the operating platform. The lower cover body 502 is pressed against the operating platform 2 by a pressing mechanism to improve the sealing performance between the sealing cover and the operating platform, which is convenient for vacuuming. Preferably, the pressing mechanism includes three manual clamps 10 arranged on the operating platform 2, and the manual clamps 10 are correspondingly distributed around the lower cover body 502. When the sealing cover is lowered to contact the operating platform, the manual clamps are pressed against the lower cover body to ensure the sealing fit between the sealing cover and the operating platform.

[0036] Furthermore, the heating device 7 includes a coaxial transformer 701, and the electromagnetic induction heating coil 702 of the coaxial transformer 701 is sleeved and arranged on the upper cover body of the sealing cover 5 without contact, so as to facilitate the induction heating of the bearing jacket located on the upper assembly component. Preferably, the lower part of the coaxial transformer 701 is provided with a water inlet pipe 703, a water outlet pipe 704 and a resonant line tube 705, so as to facilitate the installation of the device. The operating platform 2 is provided with a third bracket 12 and a fourth bracket 13, the third bracket 12 is provided with a second video monitoring head 14, and the fourth bracket 13 is provided with a second infrared thermometer 15. The second video monitoring head and the second infrared thermometer are used for real-time monitoring of the temperature and workpiece transfer status of the sealing cover body, etc. during the working process.

[0037] The other structures are the same as those in Example 1.

[0038] like Figure 5 As shown, Example 3 is a stainless steel copper-clad bearing thermal assembly device, wherein the upper assembly component 6 includes a support tube 601 fixed to the operating platform 2 by bolts, the support tube 601 is hollow inside, the support tube 601 is coaxially arranged with the sealing cover 5, and when the sealing cover moves downward, the sealing cover 5 can seal and cover the support tube 601, providing an environment for the bearing sleeve on the positioning ring and the bearing core on the lower assembly component to be accurately thermally assembled in the sealing cover. A positioning seat 602 is provided on the support tube 601, the positioning seat is hollow inside and coaxially arranged with the support tube, a positioning ring groove is provided on the upper part of the positioning seat 602, a positioning ring 603 is provided in the positioning ring groove, the positioning ring 603 is coaxially arranged with the support tube 601, and a mounting groove is provided inside the positioning ring for positioning the bearing sleeve to ensure the positioning accuracy of the bearing sleeve. The lower assembly component 8 corresponds to the positioning ring 603 and the support tube 601, that is, the assembly column of the lower assembly component 8 is arranged with the central axis of the positioning ring 603 and the support tube 601 to ensure high-precision matching of the bearing core on the assembly column and the bearing sleeve on the positioning ring. Preferably, the lower part of the support tube 601 is provided with an inflation head 604 and an exhaust head 605, the inflation head 604 is connected to an external argon source, and is used to introduce argon into the sealing cover to prevent the workpiece from being oxidized, and the exhaust head 605 is connected to a vacuum pump 9, and the vacuum pump 9 adopts a vacuum pump to vacuum the sealing cover in a sealed state. The inflation head 604 and the exhaust head 605 are both located within the covering range of the sealing cover 5 to ensure that when the sealing cover is in sealing contact with the operating platform, the inflation head and the exhaust head can act in the sealing cover.

[0039] Further, if Figure 6As shown, the lower motion mechanism 4 includes a second module bracket 401 arranged on the support frame 1, a linear guide rail II 402 and a second servo motor 403 driving the linear guide rail II 402 to move are arranged on the second module bracket 401, and the lower assembly component 8 is arranged on the linear guide rail II 402. Under the action of the second servo motor, the lower assembly component can move up and down along the linear guide rail II, and the linear guide rail II is provided with an upper limit position, a lower limit position and a working position, and the lower assembly component moves in the upper limit position, the lower limit position and the working position. The lower assembly component 8 includes a bottom bracket 801 and a guide sleeve 802 arranged on the bottom surface of the operating platform 2, and a sealing ring III 803 is arranged between the guide sleeve 802 and the operating platform 2 to ensure sealing. The bottom bracket 801 is provided with a positioning platform 805, and the positioning platform 805 is provided with an assembly column 804. When in use, the bearing magnetic core is arranged on the assembly column, and the positioning platform is manually adjusted to drive the assembly column to move on the plane, which is used for adjusting its position, and the operation is more flexible. The assembly column 804 at the working position passes upward through the guide sleeve 802 and extends into the support tube of the upper assembly component 6, so that the bearing core on the assembly column and the bearing sleeve on the positioning ring are clearance-matched. The other structures are the same as those in the second embodiment.

[0040] Embodiment 4: A bearing thermal assembly method based on the stainless steel copper-clad bearing thermal assembly device described in Embodiment 2 or 3, the steps are as follows:

[0041] S1: Placing the workpiece: the upper motion mechanism 3 drives the upper assembly component 6 to the upper limit position, the lower motion mechanism 4 drives the lower assembly component 8 to the lower limit position, the bearing sleeve of the processed bearing is manually placed on the positioning ring of the upper assembly component 6, and the bearing core is placed on the assembly column of the lower assembly component 8;

[0042] S2: Vacuuming: Press the start button, the upper motion mechanism 3 drives the sealing cover 5 to descend to the working position, and the manual clamp 10 is manually operated to seal the sealing cover and the operating platform; start the vacuuming device 9, pump the air pressure inside the sealing cover to below 5Pa, and close the vacuuming device 9;

[0043] S3: Filling with argon: Fill the sealing cover with high-purity argon gas, and ensure the argon flow rate according to the process;

[0044] S4: heating the bearing outer shell: starting the induction heating device 7, heating the bearing outer shell to 800°C and then stopping the heating, at which time the bearing outer shell expands and the inner diameter becomes larger;

[0045] S5: Assembling the bearing: starting the motion mechanism 4 drives the lower assembly component 8 to rise to the working position, and the lower assembly component 8 pushes the bearing core into the inner diameter of the heated bearing jacket, at which time the two are clearance-matched and assembled into a bearing;

[0046] S6: Cooling: Stand still for a while, waiting for the bearing in step S5 to cool naturally to below 60°C, at which time the bearing jacket shrinks and the inner diameter becomes smaller, and then it contacts and cooperates with the bearing core to complete the assembly;

[0047] S7: Take the workpiece: stop the argon gas, manually operate the manual clamp, start the upper motion mechanism 3, drive the upper assembly component 6 to move to the upper limit position, and start the lower motion mechanism 4 to drive the lower assembly component 8 to move to the lower limit position, and manually take out the processed bearing;

[0048] S8: During the working process of steps S1 to S7, the temperature is measured by the first and second infrared temperature measuring sensors, and real-time monitoring is performed by the first and second camera monitoring heads and the working status is stored in the controller, so as to facilitate accurate detection of the assembly process.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A stainless steel copper-clad bearing thermal assembly device, comprising a housing (11) and a support frame (1), wherein the support frame (1) is located inside the housing (11), and is characterized in that: An operating platform (2) is provided on the upper part of the support frame (1), a lower moving mechanism (4) is provided on the lower part of the support frame (1), an upper moving mechanism (3) and an upper assembly component (6) are provided on the operating platform (2), a sealing cover (5) capable of moving up and down and a heating device (7) for heating the sealing cover are provided on the upper moving mechanism (3), the upper assembly component (6) corresponds to the sealing cover (5), and a vacuum pumping device (9) is connected to the upper assembly component (6); a lower assembly component (8) capable of moving up and down is provided on the lower moving mechanism (4), and the lower assembly component (8) corresponds to the upper assembly component (6); The sealing cover (5) comprises an upper cover body (501) and a lower cover body (502); the upper cover body (501) and / or the lower cover body (502) are fixed to the upper sliding support plate (302) of the upper movement mechanism (3) via a lifting rod (505); the lower cover body (502) is connected to the upper cover body (501) via bolts; a sealing ring I (503) is provided between the upper cover body (501) and the lower cover body (502); a sealing ring II (504) is provided on the lower end surface of the lower cover body (502); and the lower cover body (502) is pressed onto the operating platform (2) via a pressing mechanism.

2. The thermal assembly device for a stainless steel copper-clad bearing according to claim 1, characterized in that: The upper movement mechanism (3) comprises a first module support (301) arranged on the operating platform (2); an upper sliding support plate (302) is arranged on the first module support (301); the upper sliding support plate (302) is connected to the first module support (301) via a sliding mechanism; a lifting plate (303) is arranged on the upper sliding support plate (302); a sealing cover (5) is fixed on the lifting plate (303); and a heating device (7) is arranged on the upper sliding support plate (302).

3. The thermal assembly device for a stainless steel copper-clad bearing according to claim 2 is characterized in that: The sliding mechanism comprises a linear guide rail I (304) vertically arranged on a first module bracket (301) and a first servo motor (305) for driving the linear guide rail I (304) to move; a first bracket (306) and a second bracket (307) are arranged on the upper sliding support plate (302); a first camera monitoring head (308) is arranged on the first bracket (306); and a first infrared temperature measuring device (309) is arranged on the second bracket (307).

4. The thermal assembly device for a stainless steel copper-clad bearing according to claim 1, characterized in that: The pressing mechanism comprises a manual clamp (10) arranged on the operating platform (2), and the manual clamp (10) is correspondingly distributed around the lower cover body (502).

5. The thermal assembly device for a stainless steel copper-clad bearing according to any one of claims 1 to 4, characterized in that: The heating device (7) comprises a coaxial transformer (701), wherein the electromagnetic induction heating coil (702) of the coaxial transformer (701) is sleeved and arranged non-contactingly on the sealing cover (5).

6. The thermal assembly device for a stainless steel copper-clad bearing according to claim 5, characterized in that: The lower part of the coaxial transformer (701) is provided with a water inlet pipe (703), a water outlet pipe (704) and a resonant line tube (705); the operating platform (2) is provided with a third bracket (12) and a fourth bracket (13); the third bracket (12) is provided with a second camera monitoring head (14); and the fourth bracket (13) is provided with a second infrared temperature measuring device (15).

7. The thermal assembly device for a stainless steel copper-clad bearing according to any one of claims 1 to 4 and 6, characterized in that: The upper assembly component (6) comprises a support tube (601) fixed on the operating platform (2); the support tube (601) and the sealing cover (5) are coaxially arranged, and the sealing cover (5) can seal and cover the support tube (601); a positioning seat (602) is provided on the support tube (601); a positioning ring (603) is provided on the positioning seat (602); the positioning ring (603) and the support tube (601) are coaxially arranged; and the lower assembly component (8) corresponds to the positioning ring (603) and the support tube (601).

8. The thermal assembly device for a stainless steel copper-clad bearing according to claim 7, characterized in that: An inflation head (604) and an exhaust head (605) are provided at the bottom of the support tube (601); the inflation head (604) is connected to an external argon gas source, and the exhaust head (605) is connected to a vacuum pumping device (9); and both the inflation head (604) and the exhaust head (605) are located within the covering range of the sealing cover (5).

9. The thermal assembly device for a stainless steel copper-clad bearing according to any one of claims 1 to 4, 6 and 8, characterized in that: The lower movement mechanism (4) comprises a second module support (401) arranged on the support frame (1), the second module support (401) being provided with a linear guide rail II (402) and a second servo motor (403) for driving the linear guide rail II (402) to move, and the lower assembly component (8) being provided on the linear guide rail II (402); the lower assembly component (8) comprising a bottom bracket (801) and a guide shaft sleeve (802) arranged on the bottom surface of the operating platform (2), a sealing ring III (803) being provided between the guide shaft sleeve (802) and the operating platform (2), a positioning platform (805) being provided on the bottom bracket (801), and an assembly column (804) being provided on the positioning platform (805), and the assembly column (804) being located at a working position and passing upward through the guide shaft sleeve (802) and extending into the upper assembly component (6).

10. A bearing thermal assembly method based on the stainless steel copper-clad bearing thermal assembly device according to any one of claims 1 to 9, characterized in that: Here are the steps: S1: Placing the workpiece: the upper motion mechanism (3) drives the upper assembly component (6) to the upper limit position, the lower motion mechanism (4) drives the lower assembly component (8) to the lower limit position, the bearing sleeve of the processed bearing is manually placed on the upper assembly component (6), and the bearing core is placed on the lower assembly component (8); S2: Vacuuming: Press the start button, the upper movement mechanism (3) drives the sealing cover (5) to descend to the working position, and the manual clamp (10) is manually operated to seal the sealing cover and the operating platform; start the vacuuming device (9), pump the air pressure inside the sealing cover to below 5 Pa, and close the vacuuming device (9); S3: Filling with argon: Fill the sealing cover with high-purity argon gas, and ensure the argon flow rate according to the process; S4: heating the bearing outer shell: starting the induction heating device (7), heating the bearing outer shell to 800° C. and then stopping the heating; S5: Assembling the bearing: starting the lower motion mechanism (4) to drive the lower assembly component (8) to rise to the working position, and the lower assembly component (8) pushes the bearing core into the heated bearing jacket to assemble the bearing; S6: Cooling: Keep still for a while and wait for the bearing in step S5 to cool naturally to below 60°C; S7: Removing the workpiece: stop the argon gas flow, manually operate the manual clamp, start the upper movement mechanism (3), drive the upper assembly component (6) to move to the upper limit position, and simultaneously start the lower movement mechanism (4), drive the lower assembly component (8) to move to the lower limit position, and manually remove the processed bearing; S8: During the working process of steps S1 to S7, temperature measurement and video monitoring are carried out in real time and the working status is stored in the controller.

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