Bushing press-fitting tool and press-fitting method

Abstract

The application discloses a bushing press-fitting tool and a press-fitting method, and relates to the technical field of bushing press-fitting, which comprises a rack, a servo press mechanism, a limiting protection mechanism, a press head and a cleaning mechanism. The servo press mechanism is installed on the rack, and the lower end of the servo press mechanism is connected with the press head. The limiting protection mechanism is installed in the rack, and is located directly below the press head. The limiting protection mechanism is used for placing the bushing and products, and the limiting protection mechanism can limit the pressing stroke of the press head when the press head presses the bushing. The cleaning mechanism is located in the rack, and is used for being arranged close to the bushing. The cleaning mechanism is used for cleaning the debris generated when the press head presses the bushing. The application can avoid over-pressing phenomenon during the press-fitting of the bushing, and avoid the crushing of the product due to the existence of the debris.

Description

Technical Field

[0001] This invention relates to the field of bushing pressing technology, and in particular to a bushing pressing tool and pressing method. Background Technology

[0002] Currently, bushing press fitting typically uses a press, which includes a frame, worktable, fixture base, press head, pressure sensor, and servo motor. The worktable is connected to the top of the frame, and the fixture base is mounted on the worktable. The press head is located above the fixture base, and the other end of the press head is connected to the servo motor. A button control panel is located on the side of the worktable. The operating steps are as follows: (1) According to the product model requirements, the lower limit of effective pressure and the lower limit of displacement are set in advance in the computer; (2) A general-purpose pressure sensor monitors and records the pressure value of the pressure being applied in real time, and a displacement sensor monitors and records the displacement amount of the pressure being applied in real time. (3) The press head of the press moves down to perform the pressing operation until the pressing is completed; (4) During the press-fitting process, the system monitors the pressure value of the pressure sensor and records the displacement when the pressure value is greater than the set lower limit; (5) The system accumulates all displacements and calculates the total displacement, which is the total displacement value of the effective pressing force; (6) Determine whether the total displacement value is greater than the set downward displacement value. If yes, the system will automatically release the product and allow it to flow into the next production process. Otherwise, the system will alarm and stop the next step of work, waiting for manual intervention.

[0003] During bushing pressing, if the pressing force exceeds the set lower limit and the total displacement exceeds the pressing displacement, the system determines it to be qualified. However, in actual application, there may be situations where the bushing is pressed through the bushing hole, and the system determines it to be qualified when it is actually unqualified. Furthermore, repeated pressing will generate debris, which, if not cleaned for a long time, will damage the product and cause it to be scrapped. Summary of the Invention

[0004] The purpose of this invention is to provide a bushing pressing tool and pressing method to solve the problems existing in the prior art, avoid over-pressure during bushing pressing, and avoid damaging the product due to the presence of debris.

[0005] To achieve the above objectives, the present invention provides the following solution: This invention provides a bushing pressing fixture, including a frame, a servo press mechanism, a limit protection mechanism, a press head, and a cleaning mechanism. The servo press mechanism is mounted on the frame, and its lower end is connected to the press head. The limit protection mechanism is installed inside the frame and located directly below the press head. The limit protection mechanism is used to place the bushing and the product, and when the press head presses down on the bushing, the limit protection mechanism can limit the downward stroke of the press head. The cleaning mechanism is located inside the frame and is positioned close to the bushing. The cleaning mechanism is used to clean debris generated when the press head presses down on the bushing. The cleaning mechanism includes an air blowing component and a dust suction component. The blowing assembly includes an air source and an air blowing channel. The air source provides cleaning gas. One end of the air blowing channel is connected to the air source, and the other end of the air blowing channel extends close to the bushing. The air blowing channel blows the cleaning gas provided by the air source toward the bushing. The vacuuming assembly includes a negative pressure power source, a vacuuming channel, and an external collection device. One end of the negative pressure power source is connected to the external collection device, and the other end of the negative pressure power source is connected to one end of the vacuuming channel. The other end of the vacuuming channel extends close to the bushing. The negative pressure power source provides negative pressure into the vacuuming channel and guides the debris generated when the pressure head presses down on the bushing into the external collection device through the vacuuming channel.

[0006] Preferably, the servo press mechanism includes a servo motor, a reducer, and a servo cylinder body. The servo motor is mounted on the upper end of the frame, and the output shaft of the servo motor is connected to the reducer. The output shaft of the reducer is connected to the servo cylinder body. The output end of the servo cylinder body is connected to the press head, and the servo cylinder body is used to drive the press head to press down the bushing.

[0007] Preferably, the servo press mechanism further includes a pressure sensor, a pressing top plate, a floating plate, and a driven element. The pressing top plate is installed in the middle of the frame by multiple supporting columns. The floating plate is located below the pressing top plate. The pressure sensor is installed on the upper end face of the floating plate. The press head is connected to the lower end face of the floating plate. The upper end of the driven element is installed on the frame. The lower end of the driven element can pass through the pressing top plate and be connected to the upper end of the floating plate. The output end of the servo electric cylinder body can pass through the pressing top plate and be connected to the pressure sensor.

[0008] Preferably, the pressure head is detachably connected to the lower end of the floating plate by multiple tower top screws.

[0009] Preferably, a pressing base plate is also installed on the frame, the pressing base plate is located below the pressing head, and the limiting protection mechanism is installed on the upper surface of the pressing base plate. The limiting protection mechanism includes a lower base and a floating component. The lower base is detachably connected to the upper end of the floating component. The outer periphery of the upper surface of the lower base is adapted to the outer periphery of the lower surface of the pressing head. The middle part of the upper surface of the lower base is used to embed a bushing. The product is located below the bushing. The upper surface of the pressing base plate is also provided with an angle positioning mechanism, and the angle positioning mechanism is located on one side of the limiting protection mechanism. The angle positioning mechanism is used to position the bushing.

[0010] Preferably, it also includes a displacement sensor, which is mounted in the frame via a sensor bracket and located on one side of the servo press mechanism. The displacement sensor is used to detect the displacement of the press head.

[0011] Preferably, it also includes an industrial computer and a display screen. The servo press mechanism, the limit protection mechanism, and the cleaning mechanism are all electrically connected to the industrial computer. The display screen is installed on the outer wall of the frame and is electrically connected to the industrial computer. The industrial computer is used to record the working information of the servo press mechanism, the limit protection mechanism, and the cleaning mechanism, and transmit the working information to the display screen for display.

[0012] Preferably, the frame includes a frame, a sealing door, and multiple encapsulation plates. The sealing door and multiple encapsulation plates are all installed on the frame and can seal the frame. The sealing door can be opened, and a support leg is installed at each corner of the lower end of the frame.

[0013] The present invention also provides a bushing pressing method, which uses the bushing pressing fixture described in any of the above technical solutions and includes the following steps: S1. Structural design of bushing pressing fixture: A modular design is adopted for the bushing pressing tooling, and the bushing pressing tooling is assembled. S2. Preparation for bushing press-fitting: Before starting the operation, carefully check the relevant parameters of the bushing and product to be pressed, and adjust the status of the bushing pressing tool according to these parameters. Check whether all functions of the bushing pressing tool are operating normally and ensure that all safety measures are in place. S3. Place the product and bushing: Place the product to be pressed into the designated position of the bushing pressing fixture, ensuring that the product is stable and accurately positioned. Select the appropriate bushing according to the product specifications and place the bushing correctly on the pressing point. S4. Bushing press-fitting: Start the bushing pressing fixture and apply pressure step by step according to the preset program. During this process, the control module automatically monitors the pressing force through the pressure sensor to ensure that the actual applied pressure value is always greater than the standard value, so as to ensure that the bushing can be firmly installed on the product. If the pressure sensor detects that the pressing force is insufficient or exceeds the set range, the system will issue an alarm and stop the operation. At the same time, during the pressing process, the pressure head is also hard-limited by the limit protection mechanism. During the pressing process, the cleaning mechanism is used to clean up the debris generated. S5. Remove the product and inspect it: After pressing is completed, carefully remove the product and conduct a comprehensive quality inspection to confirm that the bushing has been correctly installed and is free from any damage. Combine this with the operation data automatically recorded by the industrial control computer to facilitate subsequent analysis and process improvement.

[0014] The present invention achieves the following technical effects compared to the prior art: The bushing pressing fixture and method provided by this invention include a frame, a servo press mechanism, a limit protection mechanism, a press head, and a cleaning mechanism. The servo press mechanism is mounted on the frame, and the lower end of the servo press mechanism is connected to the press head. By precisely controlling the magnitude of the pressing force and guiding the pressing path of the press head, it is ensured that each bushing can be accurately pressed into the predetermined position on the product. The limit protection mechanism is installed inside the frame and is located directly below the press head. The limit protection mechanism is used to place the bushing and the product, and when the press head presses down on the bushing, the limit protection mechanism... The protective mechanism limits the downward stroke of the pressure head, thus avoiding over-pressing caused by excessive pressure from both structural and control perspectives. This ensures that the system's judgment results are consistent with the actual product quality, significantly reducing the misjudgment rate and improving the product qualification rate. The cleaning mechanism is located inside the frame and is positioned close to the bushing. It is used to clean the debris generated when the pressure head presses down on the bushing. During the pressing and lifting process, it performs air blowing and suction cleaning to promptly remove debris generated during the pressing process, preventing debris from damaging and scrapping subsequent products and ensuring the stability of product quality. Attached Figure Description

[0015] 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 introduced 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.

[0016] Figure 1 This is a schematic diagram of the bushing pressing fixture in Example 1; Figure 2 This is a schematic diagram of the internal structure of the bushing pressing fixture in Example 1; Figure 3 This is a partial structural diagram of the bushing pressing tool in Example 1; In the diagram: 1-Frame, 2-Servo press mechanism, 3-Lower base, 4-Press head, 5-Floating component, 6-Angle positioning mechanism, 7-Displacement sensor, 8-Encapsulation board, 9-Support leg, 10-Display screen, 11-Servo motor, 12-Reducer, 13-Servo electric cylinder body, 14-Pressure sensor, 15-Pressure pressing top plate, 16-Floating plate, 17-Pressure pressing bottom plate, 18-Material sensing sensor. Detailed Implementation

[0017] 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.

[0018] The purpose of this invention is to provide a bushing pressing tool and pressing method to solve the problems existing in the prior art, avoid over-pressure during bushing pressing, and avoid damaging the product due to the presence of debris.

[0019] 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.

[0020] Example 1 like Figures 1-3 As shown, this embodiment provides a bushing pressing fixture, including a frame 1, a servo press mechanism 2, a limit protection mechanism, a press head 4, and a cleaning mechanism. The servo press mechanism 2 is mounted on the frame 1, and the lower end of the servo press mechanism 2 is connected to the press head 4. By precisely controlling the magnitude of the pressing force and guiding the pressing path of the press head 4, it is ensured that each bushing can be accurately pressed into the predetermined position on the product. The limit protection mechanism is installed inside the frame 1 and is located directly below the press head 4. The limit protection mechanism is used to place the bushing and the product, and when the press head 4 presses down on the bushing... The limit protection mechanism can limit the downward stroke of the pressure head 4, thereby avoiding the problem of over-pressing caused by overpressure from the structural and control aspects. This ensures that the system judgment result is consistent with the actual product quality, greatly reducing the misjudgment rate and improving the product qualification rate. The cleaning mechanism is located inside the frame 1 and is set close to the bushing. The cleaning mechanism is used to clean the debris generated when the pressure head 4 presses down on the bushing. It blows and sucks air to clean during the pressing and lifting process, and removes the debris generated during the pressing process in a timely manner, avoiding the situation where the debris causes damage to subsequent products and scraps them, thus ensuring the stability of product quality.

[0021] Specifically, the servo press mechanism 2 includes a servo motor 11, a reducer 12, and a servo cylinder body 13. The servo motor 11 is mounted on the upper end of the frame 1, and the output shaft of the servo motor 11 is connected to the reducer 12. The output shaft of the reducer 12 is connected to the servo cylinder body 13. The servo motor 11 provides driving force, and the cooperation between the servo motor 11 and the reducer 12 achieves high torque output. The output end of the servo cylinder body 13 is connected to the press head 4, and the servo cylinder body 13 is used to drive the press head 4 to press down the bushing.

[0022] The servo press mechanism 2 also includes a pressure sensor 14, a pressing top plate 15, a floating plate 16, and a driven element. The pressing top plate 15 is installed in the middle of the frame 1 by multiple support columns. The floating plate 16 is located below the pressing top plate 15. The pressure sensor 14 is installed on the upper end face of the floating plate 16. The press head 4 is connected to the lower end face of the floating plate 16. The upper end of the driven element is installed on the frame 1, and the lower end of the driven element can pass through the pressing top plate 15 and connect to the upper end of the floating plate 16, thereby forming a high-precision guiding system to ensure that the bushing can be accurately pressed into the predetermined position. The output end of the servo electric cylinder body 13 can pass through the pressing top plate 15 and connect to the pressure sensor 14, thereby providing feedback on the pressure output of the servo motor 11 through the pressure sensor 14, achieving the effect of real-time monitoring of the pressure magnitude.

[0023] The pressure head 4 is detachably connected to the lower end of the floating plate 16 via multiple tower top screws, facilitating the replacement of different pressure heads 4 to suit different products. In this embodiment, to improve the efficiency of pressure head 4 replacement, the pressure head 4 can be positioned by a spring pin. When the spring pin is pulled out, the pressure head 4 can be removed for convenient use. Different pressure heads 4 correspond to products with different orientations or sizes.

[0024] A pressing base plate 17 is also installed on the frame 1. The pressing base plate 17 is located below the pressing head 4. A limit protection mechanism is installed on the upper surface of the pressing base plate 17. The limit protection mechanism includes a lower base 3 and a floating component 5. The lower base 3 is detachably connected to the upper end of the floating component 5. When using the floating component 5, the bushing is first placed on the floating component 5. The bushing is precisely positioned by the shape of the lower base 3. When the pressing head 4 presses down, the pressing head 4 contacts the bushing, maintains a precise position, and presses it into the product. The outer periphery of the upper surface of the lower base 3 is adapted to the outer periphery of the lower surface of the pressing head 4. The middle part of the upper surface of the lower base 3 is used for embedding. The product is located below the bushing and is then used in conjunction with the pressure head 4 and the lower base 3. The outer periphery of the upper surface of the lower base 3 limits the outer periphery of the pressure head 4 to prevent over-pressure during pressing and over-pressing of the product. The upper surface of the pressing base plate 17 is also provided with an angle positioning mechanism 6, which is located on one side of the limit protection mechanism. The angle positioning mechanism 6 can position the bushing by extending the disc adjustment cylinder. The angle positioning mechanism 6 is determined according to the shape of the product. When the flat direction of the bushing is different, it is determined by adjusting the disc angle turntable mechanism and adjusting it with the corresponding motor to ensure the angle is accurate.

[0025] The cleaning mechanism includes an air blowing assembly and a vacuuming assembly. The air blowing assembly includes an air source and an air blowing channel. The air source provides cleaning gas, one end of the air blowing channel is connected to the air source, and the other end extends close to the bushing. The air blowing channel blows the cleaning gas provided by the air source towards the bushing. The air source is preferably an air pump. An air nozzle is provided at the end of the air blowing channel (i.e., the end close to the bushing). The air nozzle is installed inside the frame 1 and faces the bushing. The front end of the air blowing channel (i.e., the end furthest from the bushing) is connected to the air pump via a solenoid valve. The solenoid valve is electrically connected to the control module to achieve timed air blowing. The vacuuming assembly... The system includes a negative pressure power source, a dust collection channel, and an external collection device. One end of the negative pressure power source is connected to the external collection device, and the other end is connected to one end of the dust collection channel. The other end of the dust collection channel extends close to the bushing. The end of the dust collection channel near the bushing is designed in a funnel shape to facilitate the entry of debris. The negative pressure power source provides negative pressure into the dust collection channel, guiding the debris generated when the pressure head 4 presses down on the bushing into the external collection device. The external collection device preferably contains a filter bag to trap debris, facilitating centralized collection and processing. In practical applications, the blowing and dust collection components can be activated synchronously, forming a closed-loop airflow throughout the entire process of the pressure head 4 pressing down on the bushing. This guides the debris generated during pressing through the dust collection channel into the external collection device, achieving online dust-free cleaning during the pressing process. Furthermore, by cleaning debris during the pressing and lifting process, it ensures that the product is not scratched or damaged by debris, improving product quality. After pressing the product, debris and dust will be generated. The dust and dust are sucked away by the combination of the dust suction component and the air blowing component, so as not to affect the quality of the next product. Furthermore, one air blowing operation and one air suction operation form a closed loop, which not only cleans the bushing pressing tool, but also ensures product quality and keeps the surrounding air clean.

[0026] The bushing pressing fixture provided in this embodiment also includes a displacement sensor 7. The displacement sensor 7 is installed in the frame 1 through a sensor bracket and is located on one side of the servo press mechanism 2. The displacement sensor 7 is used to detect the displacement of the press head 4.

[0027] The bushing pressing fixture provided in this embodiment also includes an industrial control computer and a display screen 10. The servo press mechanism 2, the limit protection mechanism, and the cleaning mechanism are all electrically connected to the industrial control computer. The display screen 10 is installed on the outer wall of the frame 1 and is electrically connected to the industrial control computer. The industrial control computer is used to record the working information of the servo press mechanism 2, the limit protection mechanism, and the cleaning mechanism, and transmit the working information to the display screen 10 for display. This allows the data of each pressing to be saved, facilitating subsequent tracking and solving the problem that existing presses lack an effective monitoring and adjustment mechanism for the entire pressing process, which increases product defects.

[0028] The rack 1 includes a frame, a sealing door, and multiple encapsulation plates 8. The sealing door and multiple encapsulation plates 8 are all installed on the frame and can seal the frame. The sealing door can be opened to facilitate the removal of products and bushings inside the rack 1. Each corner of the lower end of the frame is equipped with a support leg 9 to provide support.

[0029] The bushing pressing fixture provided in this embodiment also includes a material sensing sensor 18, which is disposed below the pressing head 4 and is used to detect whether there is a bushing at the pressing position.

[0030] This embodiment provides a bushing pressing method, using the bushing pressing fixture in Embodiment 1, including the following steps: S1. Structural design of bushing pressing fixture: The bushing pressing tool adopts a modular design and is assembled. The modular design facilitates quick adjustment according to different product specifications, improving adaptability. It is equipped with a high-precision guiding system to ensure that the bushing can be accurately pressed into the predetermined position. S2. Preparation for bushing press-fitting: Before starting the operation, carefully check the relevant parameters of the bushing and product to be pressed, and adjust the status of the bushing pressing tool according to these parameters. Check whether all functions of the bushing pressing tool are operating normally and ensure that all safety measures are in place. S3. Place the product and bushing: Place the product to be pressed into the designated position of the bushing pressing fixture, ensuring that the product is stable and accurately positioned. Select the appropriate bushing according to the product specifications and place the bushing correctly on the pressing point. At the same time, the bushing pressing fixture is equipped with a laser beam to prevent the product or bushing from being damaged due to improper placement. S4. Bushing press-fitting: Start the bushing pressing fixture and apply pressure step by step according to the preset program. During this process, the control module automatically monitors the pressing force through the pressure sensor 14 to ensure that the actual applied pressure value is always greater than the standard value, so as to ensure that the bushing can be firmly installed on the product. If the pressure sensor 14 detects that the pressing force is insufficient or exceeds the set range, the system will issue an alarm and stop the operation. At the same time, during the pressing process, the pressure head 4 is also hard-limited by the limit protection mechanism. During the pressing process, the cleaning mechanism is used to clean up the generated debris. The pressure standard value is set based on the following: the standard of pressing force greater than 500kg is the best practice derived from a large amount of experimental data to ensure that the bushing can be firmly installed without excessive deformation. If the pressure value is too high, it will cause cracks in the product or bushing misalignment, affecting the product life. If the pressure value is too low, the bushing and product dimensions will be out of tolerance, and there will be a risk of loosening and abnormal noise later. During the pressing process, in addition to real-time monitoring of the pressing force, a multi-level protection mechanism is also set up. For example, the hard limit of the lower base 3 and the pressing head 4 ensures that the bushing will not be excessively squeezed, resulting in an excessively large pressing position, thereby further ensuring the safety and reliability of the operation. S5. Remove the product and inspect it: After pressing is completed, carefully remove the product and conduct a comprehensive quality inspection to confirm that the bushing has been installed correctly and is free from any damage. Combine this with the operation data automatically recorded by the industrial control computer. This data provides a basis for subsequent quality tracking, facilitates the timely identification of the root cause of problems, and also provides data support for process improvement, which helps to continuously improve the level of production process. The above design solves the problem of inconsistent product quality caused by the lack of standardized tooling design and operation procedures in existing technologies, ensuring a high-quality production process. At the same time, the modular design and increased automation reduce the need for manual intervention, speed up production, and reduce the error rate.

[0031] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A bushing pressing tool, characterized in that: The device includes a frame, a servo press mechanism, a limit protection mechanism, a press head, and a cleaning mechanism. The servo press mechanism is mounted on the frame, and its lower end is connected to the press head. The limit protection mechanism is installed inside the frame and is located directly below the press head. The limit protection mechanism is used to place a bushing and a product, and when the press head presses down on the bushing, the limit protection mechanism can limit the downward stroke of the press head. The cleaning mechanism is located inside the frame and is positioned close to the bushing. The cleaning mechanism is used to clean the debris generated when the press head presses down on the bushing. The cleaning mechanism includes an air blowing assembly and a dust suction assembly. The air blowing assembly includes an air source and an air blowing channel. The air source provides cleaning gas. One end of the air blowing channel is connected to the air source, and the other end of the air blowing channel extends close to the bushing. The air blowing channel is used to blow the cleaning gas provided by the air source toward the bushing. The dust suction assembly includes a negative pressure power source, a dust suction channel, and an external collection device. One end of the negative pressure power source is connected to the external collection device, and the other end of the negative pressure power source is connected to one end of the dust suction channel. The other end of the dust suction channel extends close to the bushing. The negative pressure power source provides negative pressure into the dust suction channel and guides the debris generated when the pressure head presses down on the bushing into the external collection device through the dust suction channel.

2. The bushing pressing fixture according to claim 1, characterized in that: The servo press mechanism includes a servo motor, a reducer, and a servo cylinder body. The servo motor is mounted on the upper end of the frame, and the output shaft of the servo motor is connected to the reducer. The output shaft of the reducer is connected to the servo cylinder body. The output end of the servo cylinder body is connected to the press head, and the servo cylinder body is used to drive the press head to press down the bushing.

3. The bushing pressing fixture according to claim 2, characterized in that: The servo press mechanism also includes a pressure sensor, a pressing top plate, a floating plate, and a driven element. The pressing top plate is installed in the middle of the frame by multiple supporting columns. The floating plate is located below the pressing top plate. The pressure sensor is installed on the upper end face of the floating plate. The press head is connected to the lower end face of the floating plate. The upper end of the driven element is installed on the frame. The lower end of the driven element can pass through the pressing top plate and be connected to the upper end of the floating plate. The output end of the servo electric cylinder body can pass through the pressing top plate and be connected to the pressure sensor.

4. The bushing pressing fixture according to claim 3, characterized in that: The pressure head is detachably connected to the lower end of the floating plate via multiple tower top screws.

5. The bushing pressing fixture according to claim 1, characterized in that: A pressing base plate is also installed on the frame, located below the pressing head. A limiting protection mechanism is installed on the upper surface of the pressing base plate. The limiting protection mechanism includes a lower base and a floating component. The lower base is detachably connected to the upper end of the floating component. The outer periphery of the upper surface of the lower base is adapted to the outer periphery of the lower surface of the pressing head. The middle part of the upper surface of the lower base is used to embed a bushing. The product is located below the bushing. An angle positioning mechanism is also provided on the upper surface of the pressing base plate, and the angle positioning mechanism is located on one side of the limiting protection mechanism. The angle positioning mechanism is used to position the bushing.

6. The bushing pressing fixture according to claim 1, characterized in that: It also includes a displacement sensor, which is mounted in the frame via a sensor bracket and is located on one side of the servo press mechanism. The displacement sensor is used to detect the displacement of the press head.

7. The bushing pressing fixture according to claim 1, characterized in that: It also includes an industrial control computer and a display screen. The servo press mechanism, the limit protection mechanism, and the cleaning mechanism are all electrically connected to the industrial control computer. The display screen is installed on the outer wall of the frame and is electrically connected to the industrial control computer. The industrial control computer is used to record the working information of the servo press mechanism, the limit protection mechanism, and the cleaning mechanism, and transmit the working information to the display screen for display.

8. The bushing pressing fixture according to claim 1, characterized in that: The frame includes a frame, a sealing door, and multiple encapsulation plates. The sealing door and multiple encapsulation plates are all installed on the frame and can seal the frame. The sealing door can be opened. Each corner of the lower end of the frame is equipped with a support leg.

9. A bushing pressing method, characterized in that: Using the bushing press-fitting fixture according to any one of claims 1-8 includes the following steps: S1. Structural design of bushing pressing fixture: A modular design is adopted for the bushing pressing tooling, and the bushing pressing tooling is assembled. S2. Preparation for bushing press-fitting: Before starting the operation, carefully check the relevant parameters of the bushing and product to be pressed, and adjust the status of the bushing pressing tool according to these parameters. Check whether all functions of the bushing pressing tool are operating normally and ensure that all safety measures are in place. S3. Place the product and bushing: Place the product to be pressed into the designated position of the bushing pressing fixture, ensuring that the product is stable and accurately positioned. Select the appropriate bushing according to the product specifications and place the bushing correctly on the pressing point. S4. Bushing press-fitting: Start the bushing pressing fixture and apply pressure step by step according to the preset program. During this process, the control module automatically monitors the pressing force through the pressure sensor to ensure that the actual applied pressure value is always greater than the standard value, so as to ensure that the bushing can be firmly installed on the product. If the pressure sensor detects that the pressing force is insufficient or exceeds the set range, the system will issue an alarm and stop the operation. At the same time, during the pressing process, the pressure head is also hard-limited by the limit protection mechanism. During the pressing process, the cleaning mechanism is used to clean up the debris generated. S5. Remove the product and inspect it: After pressing is completed, carefully remove the product and conduct a comprehensive quality inspection to confirm that the bushing has been correctly installed and is free from any damage. Combine this with the operation data automatically recorded by the industrial control computer to facilitate subsequent analysis and process improvement.

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