An ultrasonic-based automatic gluing device and method for cylindrical shaft-hole parts

Abstract

The present application belongs to the technical field of adhesive assembly of shaft hole parts, and particularly relates to an automatic adhesive assembly device and method for cylindrical shaft hole parts based on ultrasonic waves. Except for feeding, all other operations can be automatically operated, the adverse effects of human factors are avoided, work efficiency and assembly quality are improved. The adhesive unit has high repeatability positioning accuracy to ensure the assembly accuracy of shaft hole parts. The ultrasonic assembly and airflow control assembly can realize accurate control of glue filling rate, ensure the adhesive quality, avoid glue overflow, and improve the pass rate. The power assembly can drive the shaft parts to rotate, the glue can be uniformly filled between the hole parts and the shaft parts in the circumferential direction, adhesive defects are avoided, safety hazards are reduced, and product consistency and pass rate are improved.

Description

Technical Field

[0001] This invention belongs to the field of adhesive assembly technology for shaft and hole parts, and particularly relates to an automatic adhesive bonding device and method for cylindrical shaft and hole parts based on ultrasonic waves. Background Technology

[0002] In aerospace, precision instruments, and metering, a large number of adhesive-bonded components exist. These components often have high assembly precision and bonding requirements. After bonding, the axial positioning accuracy and coaxiality of the parts can reach 5μm. Furthermore, to ensure sufficient bond strength and component performance, the bonding area must meet the required adhesive fill rate without any overflow. Currently, precision shaft and hole bonding operations still rely on manual assembly. Assembly accuracy and adhesive fill rate depend on the operator's experience, resulting in low-quality, inconsistent, and low-yield adhesive-bonded components, making it difficult to meet the demands of mass production. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic adhesive bonding device and method for cylindrical shaft hole parts based on ultrasonic waves, so as to solve the above-mentioned problems.

[0004] To achieve the above objectives, the present invention provides the following solution:

[0005] An automatic adhesive bonding device for cylindrical shaft hole parts based on ultrasound includes: a test bench, an adhesive bonding unit fixedly connected to the top surface of the test bench, the adhesive bonding unit including a mounting bracket, a base mounted on the mounting bracket, an airflow control component connected to the base, a countersunk hole coaxially formed on the top surface of the base, a mandrel coaxially disposed within the countersunk hole, the mandrel being rotatably connected to the base, a power component being drively connected to the mandrel, the power component being located at the bottom end of the base, multiple sets of ultrasonic components disposed within the base, the multiple sets of ultrasonic components being equally spaced circumferentially along the axis of the base, a hole-like part fixedly mounted at the large end of the countersunk hole, a shaft-like part coaxially passing through the hole-like part, an adhesive storage groove being disposed between the top ends of the hole-like part and the shaft-like part, and the shaft-like part being fixedly connected to the mandrel.

[0006] Preferably, a retaining ring is coaxially provided at the small end of the countersunk hole, and a rotating shaft is coaxially fixed to the bottom end of the mandrel. The rotating shaft is rotatably connected inside the retaining ring. A thrust bearing A is provided between the bottom end of the mandrel and the retaining ring. The rotating shaft passes through the thrust bearing A. A thrust bearing B is sleeved on the outside of the rotating shaft. The thrust bearing B abuts against the bottom surface of the retaining ring. A locking nut B is threaded onto the rotating shaft. The locking nut B abuts against the bottom surface of the thrust bearing B. The rotating shaft is drive-connected to the power assembly.

[0007] Preferably, the power assembly includes a motor mount fixed to the bottom of the base, a motor is fixed to the bottom of the motor mount, the motor is located inside the mounting bracket, and the output shaft of the motor is fixedly connected to the rotating shaft via a coupling.

[0008] Preferably, at least three sensor mounting holes are provided on the bottom surface of the base. A locking nut A is threaded to the bottom end of each sensor mounting hole. The axis of the sensor mounting hole is parallel to the axis of the base. The plurality of sensor mounting holes are equally spaced around the axis of the base. The ultrasonic component includes an ultrasonic probe that passes through the bottom of the sensor mounting hole. A hollow rubber rod is abutted at the bottom end of the ultrasonic probe. The hollow rubber rod passes through the sensor mounting hole and abuts against the locking nut A at the bottom end of the hollow rubber rod.

[0009] Preferably, the top of the base is provided with at least three first threaded holes at equal intervals around the circumference. The first threaded holes are connected to the large end of the countersunk hole. A locking screw is threaded into the first threaded hole and abuts against the outer wall of the hole-type part.

[0010] A shaft-like part is coaxially inserted inside the hole-like part. A through hole is coaxially opened on the shaft-like part. A locking stud is coaxially inserted inside the through hole. The bottom end of the locking stud is threaded into a second threaded hole, which is coaxially opened on the top surface of the mandrel.

[0011] Preferably, the airflow control component includes an air guide hole formed on the side wall of the base, the air guide hole communicating with the small end of the countersunk hole, the air guide hole being close to the top end of the small end of the countersunk hole, the air guide hole communicating with one end of an air pipe, the other end of the air pipe communicating with a normally open single-way solenoid valve, the normally open single-way solenoid valve being fixed to the top end of the support, and the support being fixed to the top surface of the test bench.

[0012] Preferably, the countersunk hole has a first annular groove circumferentially formed at its large end, and a sealing ring C is placed circumferentially in the first annular groove. The sealing ring C slides in contact with the outer wall of the hole-like part. The countersunk hole has a second annular groove circumferentially formed at its small end, and the second annular groove is located below the air guide hole. A sealing ring B is placed circumferentially in the second annular groove, and the sealing ring B slides in contact with the outer wall of the mandrel. The top surface of the mandrel has a third annular groove circumferentially formed, and the third annular groove is coaxially arranged with the mandrel. A sealing ring A is placed circumferentially in the third annular groove, and the sealing ring A abuts against the bottom end of the shaft-like part.

[0013] Preferably, a heating mechanism is fixedly connected to the top surface of the test bench. The heating mechanism includes an X-direction automatic slide fixedly connected to the top surface of the test bench, a slide connecting plate fixedly connected to the X-direction automatic slide, a Y-direction automatic slide fixedly connected to the top surface of the slide connecting plate, one end of a cantilever fixedly connected to the Y-direction automatic slide, a connecting rod fixedly connected to the other end of the cantilever, and an annular heater fixedly connected to the end of the connecting rod away from the cantilever. The inner diameter of the annular heater is larger than the outer diameter of the hole-type part.

[0014] A bonding method for cylindrical shaft hole parts based on the aforementioned ultrasonic-based automatic bonding device includes the following steps:

[0015] S1. Install hole-type parts and shaft-type parts, and lock and fix the shaft-type parts to the mandrel;

[0016] S2. Add adhesive to the adhesive storage tank. The power unit drives the shaft parts to rotate through the spindle. The position of the adhesive is measured by the ultrasonic component. When the adhesive reaches the specified position, the airflow control component is turned off and the adhesive is cooled until it solidifies.

[0017] S3. Remove the glued joint of shaft-type parts and hole-type parts; the gluing is now complete.

[0018] Compared with the prior art, the present invention has the following advantages and technical effects:

[0019] 1. Except for material feeding, all other operations can be automated, avoiding the adverse effects of human factors, improving work efficiency and assembly quality, and meeting the needs of mass production.

[0020] 2. The adhesive unit in this invention has high repeatability to ensure the assembly accuracy of the shaft hole parts.

[0021] 3. The use of ultrasonic components and airflow control components can achieve precise control of the adhesive filling rate, ensuring adhesive quality, avoiding adhesive overflow, and improving the pass rate.

[0022] 4. The power assembly can drive the shaft parts to rotate, which can make the adhesive evenly fill the gap between the hole parts and the shaft parts in the circumferential direction, avoid the occurrence of adhesive defects, reduce safety hazards, and improve product consistency and pass rate. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the adhesive unit in the present invention.

[0026] Figure 3 This is a schematic diagram of the structure of the hole-type part in this invention;

[0027] Figure 4 This is a schematic diagram of the structure of the shaft-type parts in this invention;

[0028] Figure 5 This is a schematic diagram of the adhesive bonding between hole-type parts and shaft-type parts in this invention;

[0029] Figure 6 This is a schematic diagram of the structure of the central axis of the present invention;

[0030] Figure 7 This is a schematic diagram of the base structure in this invention;

[0031] The components include: 1. Test bench; 2. Automatic slide table in the X direction; 3. Automatic slide table in the Y direction; 4. Slide table connecting plate; 5. Cantilever; 6. Connecting rod; 7. Ring heater; 8. Adhesive unit; 9. Air pipe; 10. Normally open single-way solenoid valve; 11. Support; 8-1. Mounting bracket; 8-2. Motor; 8-3. Motor base; 8-4. Locking nut A; 8-5. Base; 8-6. Hollow rubber rod; 8-7. Ultrasonic probe; 8-8. Sealing ring C; 8-9. Hole parts; 8-10. Shaft parts; 8-11. Locking stud; 8-12. Mandrel; 8-13. Sealing ring A; 8-14. Sealing ring B; 8-15. Thrust bearing A; 8-16. Thrust bearing B; 8-17. Locking nut B; 8-18. Coupling; 8-19. Locking screw. Detailed Implementation

[0032] 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.

[0033] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Reference Figures 1 to 7This invention discloses an automatic adhesive bonding device for cylindrical shaft hole parts based on ultrasound, comprising: a test bench 1, an adhesive bonding unit 8 fixedly connected to the top surface of the test bench 1, the adhesive bonding unit 8 including a mounting bracket 8-1, a base 8-5 mounted on the mounting bracket 8-1, the base 8-5 being connected to an airflow control component, a countersunk hole coaxially formed on the top surface of the base 8-5, a mandrel 8-12 coaxially disposed within the countersunk hole, the mandrel 8-12 being rotatably connected to the base 8-5, and the mandrel 8-12... -12 is connected to a power component, which is located at the bottom of the base 8-5. Multiple ultrasonic components are installed inside the base 8-5. The multiple ultrasonic components are arranged at equal intervals along the circumferential axis of the base 8-5. A hole-type part 8-9 is fixedly installed at the large end of the countersunk hole. A shaft-type part 8-10 is coaxially inserted inside the hole-type part 8-9. A glue storage groove is provided between the top ends of the hole-type part 8-9 and the shaft-type part 8-10. The shaft-type part 8-10 is fixedly connected to the spindle 8-12.

[0035] The scheme is further optimized. A retaining ring is coaxially installed at the small end of the countersunk hole. A rotating shaft is coaxially fixed to the bottom end of the mandrel 8-12. The rotating shaft is rotatably connected inside the retaining ring. A thrust bearing A8-15 is installed between the bottom end of the mandrel 8-12 and the retaining ring. The rotating shaft passes through the thrust bearing A8-15. A thrust bearing B8-16 is sleeved on the outside of the rotating shaft. The thrust bearing B8-16 abuts against the bottom surface of the retaining ring. A locking nut B8-17 is threaded onto the rotating shaft. The locking nut B8-17 abuts against the bottom surface of the thrust bearing B8-16. The rotating shaft is connected to the power component for transmission.

[0036] The thrust bearings A8-15 and B8-16 ensure smoother rotation of the spindle 8-12 within the countersunk hole. The retaining ring and base 8-5 are integrally formed.

[0037] The scheme is further optimized. The power component includes a motor mount 8-3 fixed to the bottom of the base 8-5. A motor 8-2 is fixed to the bottom of the motor mount 8-3. The motor 8-2 is located inside the mounting bracket 8-1. The output shaft of the motor 8-2 is fixedly connected to the rotating shaft through a coupling 8-18.

[0038] In a further optimized design, at least three sensor mounting holes are provided on the bottom surface of the base 8-5. A locking nut A8-4 is threaded to the bottom of each sensor mounting hole. The axis of the sensor mounting hole is parallel to the axis of the base 8-5. Multiple sensor mounting holes are evenly spaced circumferentially along the axis of the base 8-5. The ultrasonic component includes an ultrasonic probe 8-7 that passes through the bottom of the sensor mounting hole. A hollow rubber rod 8-6 is abutted at the bottom of the ultrasonic probe 8-7. The hollow rubber rod 8-6 passes through the sensor mounting hole, and the bottom of the hollow rubber rod 8-6 abuts against the locking nut A8-4.

[0039] Insert the ultrasonic probe 8-7 and the hollow rubber rod 8-6 into the sensor mounting hole in sequence, tighten the locking nut A8-4, and use the hollow rubber rod 8-6 to press the ultrasonic probe 8-7 against the bottom of the sensor mounting hole.

[0040] The design is further optimized by providing at least three first threaded holes at equal intervals around the top of the base 8-5. The first threaded holes are connected to the large end of the countersunk holes. Locking screws 8-19 are connected to the internal threads of the first threaded holes. Locking screws 8-19 abut against the outer wall of the hole-type parts 8-9.

[0041] A shaft part 8-10 is coaxially inserted inside a hole part 8-9. A through hole is coaxially opened on the shaft part 8-10. A locking stud 8-11 is coaxially inserted inside the through hole. The bottom end of the locking stud 8-11 is threaded into a second threaded hole. The second threaded hole is coaxially opened on the top surface of the spindle 8-12.

[0042] Hole-type parts 8-9 are fixed by three locking screws 8-19, and shaft-type parts 8-10 and spindles 8-12 are locked by locking studs 8-11. Hole-type parts 8-9 and shaft-type parts 8-10 are in clearance fit, and the adhesive flows in the gap.

[0043] Further optimization of the scheme: the airflow control component includes an air guide hole opened on the side wall of the base 8-5, the air guide hole is connected to the small end of the countersunk hole, the air guide hole is close to the top end of the small end of the countersunk hole, the air guide hole is connected to one end of the air pipe 9, the other end of the air pipe 9 is connected to a normally open single-way solenoid valve 10, the normally open single-way solenoid valve 10 is fixed to the top of the support 11, and the support 11 is fixed to the top surface of the test bench 1.

[0044] The flow of adhesive between the hole-type parts 8-9 and the shaft-type parts 8-10 is controlled by controlling the opening and closing of the normally open single-way solenoid valve 10.

[0045] The scheme is further optimized. A first annular groove is formed circumferentially at the large end of the countersunk hole. A sealing ring C8-8 is placed circumferentially in the first annular groove. The sealing ring C8-8 slides in contact with the outer wall of the hole part 8-9. A second annular groove is formed circumferentially at the small end of the countersunk hole. The second annular groove is located below the air guide hole. A sealing ring B8-14 is placed circumferentially in the second annular groove. The sealing ring B8-14 slides in contact with the outer wall of the mandrel 8-12. A third annular groove is formed circumferentially on the top surface of the mandrel 8-12. The third annular groove is coaxially arranged with the mandrel 8-12. A sealing ring A8-13 is placed circumferentially in the third annular groove. The sealing ring A8-13 abuts against the bottom end of the shaft part 8-10.

[0046] The sealing ring C8-8 seals the large end of the hole-type part 8-9 with the countersunk hole, the sealing ring B8-14 seals the small end of the mandrel 8-12 with the countersunk hole, and the sealing ring A8-13 seals the shaft-type part 8-10 with the mandrel 8-12. The air vent is located between the sealing rings C8-8 and B8-14. When the normally open single-way solenoid valve 10 is closed, the adhesive stops flowing under atmospheric pressure.

[0047] Further optimization of the scheme: a heating mechanism is fixedly attached to the top surface of the test bench 1. The heating mechanism includes an X-direction automatic slide 2 fixedly attached to the top surface of the test bench 1. A slide connecting plate 4 is fixedly attached to the X-direction automatic slide 2. A Y-direction automatic slide 3 is fixedly attached to the top surface of the slide connecting plate 4. One end of a cantilever 5 is fixedly attached to the Y-direction automatic slide 3. A connecting rod 6 is fixedly attached to the other end of the cantilever 5. An annular heater 7 is fixedly attached to the end of the connecting rod 6 away from the cantilever 5. The inner diameter of the annular heater 7 is larger than the outer diameter of the hole-type parts 8-9.

[0048] The horizontal position of the annular heater 7 is adjusted by the automatic slide table 2 in the X direction, and the vertical position of the annular heater 7 is adjusted by the automatic slide table 3 in the Y direction, so that the annular heater 7 is coaxially sleeved on the outside of the base 8-5 and covers the adhesive area.

[0049] A bonding method based on the above-mentioned ultrasonic-based automatic bonding device for cylindrical shaft hole parts includes the following steps:

[0050] S1. Install hole-type parts 8-9 and shaft-type parts 8-10, and lock and fix shaft-type parts 8-10 to spindle 8-12;

[0051] S2. Add adhesive to the adhesive storage tank. The power component drives the shaft parts 8-10 to rotate through the spindle 8-12. The position of the adhesive is measured by the ultrasonic component. When the adhesive reaches the specified position, the airflow control component is turned off and the adhesive is cooled until it solidifies.

[0052] S3. Remove the adhesive assembly of shaft parts 8-10 and hole parts 8-9. The adhesive bonding is now complete.

[0053] Place the hole-type part 8-9 in the stepped hole above the base 8-5 and press it gently. At the same time, use the three locking nuts on the base 8-5 to lock the hole-type part 8-9 to prevent it from loosening during assembly. Then, put the shaft-type part 8-10 into the center hole of the hole-type part 8-9, so that the center hole of the shaft-type part 8-10 is in clearance fit with the boss at the upper end of the mandrel 8-12. Lock the shaft-type part 8-10 and the mandrel 8-12 with the locking stud 8-11 to complete the installation and positioning of the parts.

[0054] Adjust the position of the annular heater 7 using the X-direction automatic slide 2 and the Y-direction automatic slide 3 to ensure that the annular heater 7 is coaxial with the hole-type parts 8-9 and covers the entire adhesive bonding area. Activate the normally open single-way solenoid valve 10 to operate the ultrasonic probe 8-7, the annular heater 7, and the motor 8-2. Add adhesive to the adhesive reservoir. The annular heater 7 heats the adhesive to increase its fluidity. Under the influence of gravity and surface tension, the adhesive slowly flows into the gap between the shaft-type parts 8-10 and the hole-type parts 8-9. The shaft-type parts 8-10 rotate slowly under the drive of the motor 8-2, allowing the adhesive to flow freely in the gap between them. The adhesive is evenly distributed circumferentially. When all three ultrasonic probes 8-7 measure a significant decrease in the amplitude of the reflected ultrasonic signal, the adhesive reaches the designated position and meets the filling rate requirement. The normally open single-way solenoid valve 10 closes, and the shaft part 8-10 stops rotating, forming a closed space between the shaft part 8-10, the hole part 8-9, the mandrel 8-12, and the base 8-5. At this time, the adhesive can no longer flow, the annular heater 7 stops heating, and returns to the initial position under the action of the automatic slide table 2 in the X direction and the automatic slide table 3 in the Y direction. After the required cooling time is reached, the adhesive solidifies, achieving the bonding of the shaft part 8-10 and the hole part 8-9.

[0055] Open the normally open single-way solenoid valve 10, loosen the three locking nuts on the base 8-5, remove the adhesive assembly of shaft part 8-10 and hole part 8-9, and complete the entire adhesive assembly process.

[0056] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0057] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. An automatic adhesive bonding device for cylindrical shaft hole parts based on ultrasonic waves, characterized in that, Include: Test bench (1), the top surface of the test bench (1) is fixedly connected with a gluing unit (8), the gluing unit (8) includes a mounting bracket (8-1), a pedestal (8-5) is installed on the mounting bracket (8-1), the pedestal (8-5) is communicated with airflow control assembly, the top surface of the pedestal (8-5) is coaxially provided with a countersunk hole, the countersunk hole is coaxially provided with a mandrel (8-12), the mandrel (8-12) is rotatably connected with the pedestal (8-5), the mandrel (8-12) is drivingly connected with a power assembly, the power assembly is located at the bottom end of the pedestal (8-5), a plurality of ultrasonic assemblies are arranged in the pedestal (8-5), a plurality of the ultrasonic assemblies are circumferentially and equidistantly arranged along the axis of the pedestal (8-5), the large end of the countersunk hole is fixedly installed with a hole part (8-9), the hole part (8-9) is coaxially provided with a shaft part (8-10), a glue storage groove is arranged between the hole part (8-9) and the top end of the shaft part (8-10), the shaft part (8-10) is fixedly connected with the mandrel (8-12). The airflow control assembly includes a gas guide hole formed in the side wall of the pedestal (8-5), the gas guide hole is communicated with the small end of the countersunk hole, the top end of the gas guide hole is close to the small end of the countersunk hole, one end of the gas pipe (9) is communicated with the gas guide hole, the other end of the gas pipe (9) is communicated with a normally open single-way electromagnetic valve (10), the normally open single-way electromagnetic valve (10) is fixedly connected to the top end of a support (11), the support (11) is fixedly connected to the top surface of the test bench (1).

2. The ultrasonic-based automatic gluing device for cylindrical shaft hole parts according to claim 1, characterized by: The small end of the countersunk hole is coaxially provided with a fixed ring, the bottom end of the mandrel (8-12) is coaxially fixedly connected with a rotating shaft, the rotating shaft is rotatably connected in the fixed ring, a thrust bearing A (8-15) is arranged between the bottom end of the mandrel (8-12) and the fixed ring, the rotating shaft is arranged in the thrust bearing A (8-15), a thrust bearing B (8-16) is arranged on the outer side of the rotating shaft, the thrust bearing B (8-16) abuts against the bottom surface of the fixed ring, a locking nut B (8-17) is threadedly connected to the rotating shaft, the locking nut B (8-17) abuts against the bottom surface of the thrust bearing B (8-16), the rotating shaft is drivingly connected with the power assembly.

3. The ultrasonic-based automatic gluing device for cylindrical shaft hole parts according to claim 2, characterized by: The power assembly includes a motor base (8-3) fixedly connected to the bottom end of the pedestal (8-5), a motor (8-2) is fixedly connected to the bottom end of the motor base (8-3), the motor (8-2) is located in the mounting bracket (8-1), the output shaft of the motor (8-2) is fixedly connected with the rotating shaft through a shaft coupling (8-18).

4. The ultrasonic-based automatic gluing device for cylindrical shaft hole parts according to claim 1, characterized by: The bottom surface of the base (8-5) is provided with at least three sensor mounting holes, the bottom end of the sensor mounting hole is threadedly connected with a locking nut A (8-4), the axis of the sensor mounting hole is arranged in parallel with the axis of the base (8-5), a plurality of sensor mounting holes are arranged at equal intervals along the axis of the base (8-5), the ultrasonic assembly comprises an ultrasonic probe (8-7) penetrating through the bottom of the sensor mounting hole, the bottom end of the ultrasonic probe (8-7) abuts against a hollow rubber rod (8-6), the hollow rubber rod (8-6) penetrates through the sensor mounting hole, and the bottom end of the hollow rubber rod (8-6) abuts against the locking nut A (8-4).

5. The ultrasonic based automatic gluing device for cylindrical shaft hole parts according to claim 1, characterized in that: The top end of the base (8-5) is provided with at least three first threaded holes at equal intervals in the circumferential direction, the first threaded hole is in communication with the large end of the countersunk hole, and a locking screw (8-19) is threadedly connected in the first threaded hole, the locking screw (8-19) abuts against the outer side wall of the hole-shaped part (8-9); The hole-shaped part (8-9) is coaxially provided with a shaft-shaped part (8-10), the shaft-shaped part (8-10) is coaxially provided with a through hole, the through hole is coaxially provided with a locking stud (8-11), and the bottom end of the locking stud (8-11) is threadedly connected in a second threaded hole coaxially arranged on the top surface of the mandrel (8-12).

6. The ultrasonic based automatic gluing device for cylindrical shaft hole parts according to claim 1, characterized in that: The large end of the countersunk hole is provided with a first annular groove in the circumferential direction, the first annular groove is circumferentially placed with a sealing ring C (8-8), the sealing ring C (8-8) is in sliding contact with the outer side wall of the hole-shaped part (8-9), the small end of the countersunk hole is provided with a second annular groove in the circumferential direction, the second annular groove is located below the air guide hole, the second annular groove is circumferentially placed with a sealing ring B (8-14), the sealing ring B (8-14) is in sliding contact with the outer side wall of the mandrel (8-12), the top surface of the mandrel (8-12) is provided with a third annular groove in the circumferential direction, the third annular groove is coaxially arranged with the mandrel (8-12), the third annular groove is circumferentially placed with a sealing ring A (8-13), and the sealing ring A (8-13) abuts against the bottom end of the shaft-shaped part (8-10).

7. The ultrasonic based automatic gluing device for cylindrical shaft hole parts according to claim 1, characterized in that: The top surface of the test bench (1) is fixedly connected with a heating mechanism, the heating mechanism comprises an X-direction automatic sliding table (2) fixedly connected to the top surface of the test bench (1), a sliding table connecting plate (4) is fixedly connected to the X-direction automatic sliding table (2), a Y-direction automatic sliding table (3) is fixedly connected to the top surface of the sliding table connecting plate (4), one end of a cantilever (5) is fixedly connected to the Y-direction automatic sliding table (3), the other end of the cantilever (5) is fixedly connected with a connecting rod (6), the end of the connecting rod (6) away from the cantilever (5) is fixedly connected with a ring-shaped heater (7), and the inner diameter of the ring-shaped heater (7) is greater than the outer diameter of the hole-shaped part (8-9).

8. An adhesive bonding method based on the ultrasonic wave-based cylindrical shaft hole part automatic adhesive bonding apparatus according to any one of claims 1 to 7, characterized by, The steps include: S1, install the hole-shaped part (8-9) and the shaft-shaped part (8-10), and lock and fix the shaft-shaped part (8-10) and the mandrel (8-12); S2, add glue liquid into the storage tank, the power assembly drives the shaft parts (8-10) to rotate through the mandrel (8-12), measures the glue liquid position through the ultrasonic assembly, when the glue liquid reaches the specified position, close the air flow control assembly, cool to solidify the glue liquid; S3, take down the shaft parts (8-10) and hole parts (8-9) glue body, and the gluing is completed.

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