Split type gap-adjustable impact-resistant ball pin assembly manufacturing device

Abstract

The invention relates to the technical field of mechanical manufacturing, and discloses a split gap-adjustable impact-resistant ball pin assembly manufacturing device which comprises a sleeve, a pin shaft is arranged at the bottom end of the interior of the sleeve, first external threads are arranged on the outer wall of the pin shaft, and the first external threads of the pin shaft are in threaded connection with a first nut; a first locking gasket is arranged on the upper surface of the first nut, the middle of the first locking gasket is arranged on the outer wall of the pin shaft, a lower ball seat is arranged at the top end of the first locking gasket, second fixing plates are fixedly arranged on the two sides of the lower ball seat, and second locking gaskets are arranged on the lower surfaces of the second fixing plates. Through the first nut, the first locking gasket, the nut, the second locking gasket, the bolt and the second nut, the gap between the ball head and the ball seat can be adjusted, the gap is adjusted to a proper value according to different use requirements and working conditions, and the requirements of an automobile suspension system and a steering system for the gap of the ball pin assembly are met. The problem that the gap of the ball pin assembly cannot be adjusted is solved.

Description

Technical Field

[0001] This invention relates to the field of mechanical manufacturing technology, specifically to a device for preparing a split-type adjustable gap anti-impact ball pin assembly. Background Technology

[0002] In the manufacturing of ball joint assemblies, common processes are mainly divided into one-piece press-fitting, welding, and separate threaded connection processes. Among them, the one-piece press-fitting process, due to its advantages of simplicity and low cost, has held a certain market share for a considerable period of time. In actual automotive use, as parts wear down and vehicle driving conditions change, the clearance between the ball joint and the pin needs to be adjusted accordingly to ensure the ball joint assembly is always in optimal working condition. However, ball joint assemblies manufactured using the one-piece press-fitting process, once a clearance problem occurs, must be replaced entirely. This not only increases maintenance costs but also significantly impacts the normal use of the vehicle.

[0003] Welding is a process that fixes the ball head and pin together, providing high connection strength. However, the heat-affected zone generated during welding alters the material's properties, leading to a decrease in key properties such as strength and toughness.

[0004] The split-type threaded connection technology achieves a detachable connection between the ball joint and the pin shaft through threaded connections, making clearance adjustment and component replacement relatively easy. However, in practical applications, this technology has been found to be unsatisfactory in terms of impact resistance. During vehicle operation, the ball joint assembly is frequently subjected to impact loads from the road surface. Under these impacts, the threaded connection is prone to loosening. Once the threads loosen, the clearance of the ball joint assembly will change and cannot be maintained within the designed range, seriously affecting the service life of the ball joint assembly and the vehicle's handling stability.

[0005] The limitations of traditional ball joint assemblies in terms of clearance adjustment are becoming increasingly apparent. The inability to adjust the clearance not only makes it difficult to guarantee assembly accuracy, but also prevents the ball joint assembly from adapting to clearance changes in a timely manner when facing complex operating conditions, thereby affecting the performance of the entire vehicle suspension and steering system. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a separate, adjustable gap, impact-resistant ball pin assembly manufacturing device, which solves the problem of the inability to adjust the gap of the ball pin assembly.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a split-type adjustable gap anti-impact ball pin assembly manufacturing device, comprising a sleeve, a pin shaft provided at the bottom of the sleeve, an external thread provided on the outer wall of the pin shaft, a nut shaft threadedly connected to the external thread of the pin shaft, a locking washer provided on the upper surface of the nut shaft, the middle part of the locking washer shaft being disposed on the outer wall of the pin shaft, a lower ball seat provided at the top of the locking washer shaft, a fixing plate second fixedly disposed on both sides of the lower ball seat, a locking washer second provided on the lower surface of the fixing plate second, a nut provided at the bottom of the locking washer second, a bolt provided in the middle of the nut, one end of the bolt being threadedly connected to the middle of the fixing plate second, the other end of the bolt being threadedly connected to the fixing plate first, a nut second provided at the top of the fixing plate first, the middle part of the nut second being threadedly connected to one end of the bolt, and one side of the fixing plate first being fixedly disposed on one side of the upper ball seat.

[0008] Preferably, the top end of the pin is located at the bottom end of the lower ball seat, a lower spring washer is provided inside the lower ball seat, the upper surface of the lower spring washer is located at the bottom end of the ball head, the lower surface of the lower spring washer is located inside the lower ball seat, an upper spring washer is provided at the top end of the ball head, the upper surface of the upper spring washer is located inside the upper ball seat, a club is provided at the top end of the upper ball seat, and the outer wall of the club is provided with an external thread.

[0009] Preferably, the upper and lower spring washers have an opening on one side, the upper and lower spring washers are made of alloy steel, and the upper and lower spring washers are circular in shape to resist impact.

[0010] Preferably, the ball head is circular in shape, the ball head is made of alloy steel, the cue is also made of alloy steel, and the cue and the ball head are connected.

[0011] Preferably, the pin is made of 40Cr alloy steel and is used to connect the inside of the sleeve. The top of the sleeve is provided with a rubber sleeve, and the middle part of the rubber sleeve is provided on the outer wall of the cue stick. The outer walls of the sleeve and the rubber sleeve are provided with clamps, which are used to fix the connection between the sleeve and the rubber sleeve.

[0012] A method for using a split-type adjustable gap anti-impact ball pin assembly, used in the aforementioned apparatus for manufacturing a split-type adjustable gap anti-impact ball pin assembly, includes the following steps: S1. Assemble the ball head and the ball seat to ensure a tight fit between them; S2. Insert the pin into the ball seat and fix it with the connecting sleeve; S3. Rotate the adjusting nut to adjust the gap between the ball head and the ball seat to the set value; S4. Install the locking washer to ensure that the adjusting nut does not loosen.

[0013] Preferably, step S1 further includes: measuring the dimensions of the ball head and ball seat using a high-precision measuring tool, so that the diameter of the ball head and the inner diameter of the ball seat meet the design tolerance range.

[0014] Preferably, step S2 further includes: before inserting the pin, the pin is degreased and derusted, which can be done by chemical cleaning or mechanical polishing to ensure that the pin surface is clean.

[0015] Preferably, step S3 further includes: when rotating the adjusting nut, using an angle measuring instrument to precisely control the rotation angle of the adjusting nut, and combining the gap measurement data to ensure the accuracy of the gap adjustment.

[0016] Preferably, step S4 further includes: after the locking washer is installed, performing an overall performance test on the ball pin assembly to verify whether the performance of the ball pin assembly under various working conditions meets the design requirements.

[0017] Working principle: Based on the sleeve, the pin at the bottom of the sleeve is made of 40Cr alloy steel and is threaded to the nut, with a locking washer to prevent loosening. The lower ball seat is connected to the upper ball seat via a fixing plate and bolts, facilitating fine-tuning of the position. The cue and ball head are made of alloy steel and, after connection, mate with the ball seat, allowing the ball head to rotate freely. The rubber sleeve at the top of the sleeve buffers friction and prevents impurities, while a clamp secures the rubber sleeve to the sleeve, ensuring a stable connection.

[0018] The rotating nut, through its threaded engagement with the pin, causes axial movement, which in turn moves the ball seat relative to the ball head, thus adjusting the clearance. An angle measuring instrument is used to precisely control the nut's rotation angle, and combined with clearance measurement data, accurate adjustments are achieved to meet the needs of different working conditions.

[0019] The upper and lower spring washers, when the ball pin assembly is impacted, rely on their own elastic deformation to convert the impact force into elastic potential energy for cushioning. Their special annular structure with an opening on one side can better disperse the impact force, protect the components, and improve impact resistance and service life.

[0020] Strict quality control is maintained throughout the entire preparation and assembly process. Before assembly, the dimensions of the ball head and ball seat are measured to ensure compliance with tolerances; the pins are degreased and derusted to enhance connection reliability; after assembly, locking washers are installed and overall performance testing is conducted, simulating working conditions to test performance and guarantee product quality.

[0021] This invention provides a manufacturing apparatus for a split-type adjustable gap impact-resistant ball pin assembly. It has the following beneficial effects: 1. This invention utilizes a first nut, a first locking washer, a nut, a second locking washer, a bolt, and a second nut to adjust the gap between the ball joint and the ball seat. Depending on different usage requirements and operating conditions, the gap can be adjusted to a suitable value to meet the clearance requirements of the automotive suspension and steering systems for the ball joint assembly. This solves the problem of the inability to adjust the gap of the ball joint assembly.

[0022] 2. In this invention, the elastic deformation of the upper and lower spring washers absorbs and buffers the impact force, reducing the peak stress of the ball pin assembly when subjected to impact, lowering the stress on the component, effectively reducing the risk of component damage due to impact, and improving the impact resistance and service life of the ball pin assembly. This solves the problem of poor impact resistance in ball pin assemblies.

[0023] 3. In this invention, the ball head and club are made of alloy steel, giving the ball pin assembly high strength and durability. During long-term use, it can withstand various complex external forces and is less prone to deformation, breakage, or excessive wear, thus extending its service life and reducing the frequency of replacement and maintenance. This solves the problem of increased operating costs due to replacement caused by wear.

[0024] 4. This invention achieves high-precision assembly of the ball head and ball seat by precisely measuring their dimensions before assembly and ensuring they conform to design tolerances. The fit accuracy between the ball head and ball seat is significantly improved, with uniform and stable clearance, reducing assembly errors. This solves the problem of low assembly accuracy.

[0025] 5. In this invention, the rust removal process removes the rust layer from the pin surface, preventing further corrosion of the pin base. This reduces the likelihood of pin corrosion during subsequent use, extends the pin's service life, and ensures stable operation of the ball-pin assembly even in harsh environments. It solves the problem of pin corrosion. Attached Figure Description

[0026] Figure 1 This is a front perspective view of a split-type adjustable gap anti-impact ball pin assembly manufacturing device according to the present invention; Figure 2 This is a perspective sectional view of the sleeve portion of a split-type adjustable gap anti-impact ball pin assembly manufacturing device according to the present invention; Figure 3 This is a three-dimensional schematic diagram of a partial structure at the ball head of a split-type adjustable gap anti-impact ball pin assembly manufacturing device according to the present invention; Figure 4 This is a partial cross-sectional view of the ball seat of a split-type adjustable gap anti-impact ball pin assembly manufacturing device according to the present invention; Figure 5 This is a three-dimensional schematic diagram of a partial structure at the bolt of a split-type adjustable gap anti-impact ball pin assembly manufacturing device according to the present invention; Figure 6 This is a three-dimensional schematic diagram of a partial structure of the locking gasket in a split-type adjustable gap anti-impact ball pin assembly manufacturing device of the present invention; Figure 7 This is a three-dimensional schematic diagram of a partial structure of the spring washer on a split-type adjustable gap anti-impact ball pin assembly manufacturing device of the present invention; Figure 8 This is a flowchart illustrating the usage method of a split-type adjustable gap anti-impact ball pin assembly according to the present invention.

[0027] The components are as follows: 1. Sleeve; 2. Clamp; 3. Rubber sleeve; 4. Cue stick; 5. Upper ball seat; 6. Ball head; 7. Lower ball seat; 8. Nut 1; 9. Pin; 10. Placement cavity; 11. Locking washer 1; 12. Bolt; 13. Upper spring washer; 14. Lower spring washer; 15. Nut 2; 16. Fixing plate 1; 17. Locking washer 2; 18. Nut; 19. Fixing plate 2. Detailed Implementation

[0028] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. 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.

[0029] Please see the appendix Figure 2 -Appendix Figure 6 This invention provides a split-type adjustable gap anti-impact ball pin assembly manufacturing device, including a sleeve 1. A pin 9 is disposed at the bottom of the inner part of the sleeve 1. An external thread is provided on the outer wall of the pin 9. A nut 8 is threaded onto the external thread of the pin 9. A locking washer 11 is disposed on the upper surface of the nut 8. The middle part of the locking washer 11 is disposed on the outer wall of the pin 9. A lower ball seat 7 is disposed at the top of the locking washer 11. Fixing plates 19 are fixedly disposed on both sides of the lower ball seat 7. A locking washer 17 is provided on the lower surface of the fixing plate 2 19. A nut 18 is provided at the bottom end of the locking washer 2 17. A bolt 12 is provided in the middle of the nut 18. One end of the bolt 12 is threaded to the middle of the fixing plate 2 19. The other end of the bolt 12 is threaded to the fixing plate 1 16. A nut 15 is provided at the top of the fixing plate 1 16. The middle of the nut 15 is threaded to one end of the bolt 12. One side of the fixing plate 1 16 is fixedly mounted on one side of the upper ball seat 5.

[0030] Specifically, the preparation device uses sleeve 1 as the basic load-bearing component, with a pin 9 installed at its bottom. This installation method provides basic support for the connection and fixation of subsequent components. The external thread on the outer wall of pin 9 is threadedly connected to nut 8. This threaded connection allows the position of nut 8 on pin 9 to be flexibly adjusted by rotation. A locking washer 11 is provided on the upper surface of nut 8 and fits onto the outer wall of pin 9. When nut 8 is adjusted to the appropriate position, the locking washer 11 can effectively prevent nut 8 from loosening due to vibration or other factors, ensuring the stability of the connection.

[0031] The lower ball seat 7 is mounted on the top of the locking washer 11. The fixing plates 19 on both sides are connected to the fixing plate 16 via bolts 12, nuts 18, locking washers 17, and nuts 15. This connection method forms a stable structural system. Bolts 12 play a crucial role in connection and fastening; by tightening or loosening bolts 12, the overall structure of the ball seat can be fine-tuned. The upper ball seat 5 is fixedly connected to one side of the fixing plate 16, allowing the upper ball seat 5 and lower ball seat 7 to be stably combined, forming the ball seat portion of the ball pin assembly, providing a stable support structure for the installation and movement of the ball head.

[0032] When it is necessary to adjust the gap between the ball head and the ball seat, by rotating nut 8, due to the threaded transmission relationship between nut 8 and pin 9, the rotation of nut 8 is converted into linear motion along the axis of pin 9. The up-and-down movement of nut 8 will cause relative displacement of components such as lower ball seat 7 and connected upper ball seat 5. While nut 8 is rotating, it will compress locking washer 11, which can fix nut 8 to prevent loosening, thereby changing the size of the gap between ball head and ball seat.

[0033] The clearance between the ball joint and the ball seat can be adjusted using nut 18, locking washer 11, nut 18, locking washer 2 17, bolt 12, and nut 2 15. This allows for adjustment of the clearance to a suitable value according to different usage requirements and operating conditions, meeting the stringent requirements of automotive suspension and steering systems for ball joint assembly clearance. This improves the assembly precision and reliability of the ball joint assembly and solves the problem of the inability to adjust the clearance of the ball joint assembly.

[0034] Please see the appendix Figure 4 Appendix Figure 7The top end of the pin 9 is located at the bottom end of the lower ball seat 7. The lower ball seat 7 is equipped with a lower spring washer 14. The upper surface of the lower spring washer 14 is located at the bottom end of the ball head 6. The lower surface of the lower spring washer 14 is located inside the lower ball seat 7. The top end of the ball head 6 is equipped with an upper spring washer 13. The upper surface of the upper spring washer 13 is located inside the upper ball seat 5. The top end of the upper ball seat 5 is equipped with a cue stick 4. The outer wall of the cue stick 4 is provided with an external thread. An opening is provided on one side of the upper spring washer 13 and the lower spring washer 14. The upper spring washer 13 and the lower spring washer 14 are made of alloy steel. The upper spring washer 13 and the lower spring washer 14 are circular in shape to resist impact.

[0035] Specifically, the top end of pin 9 is connected to the bottom end of lower ball seat 7, forming the basic connection structure of the lower part of the ball pin assembly, providing stable support for the entire ball pin assembly. The lower spring washer 14, installed inside lower ball seat 7, has its upper and lower surfaces in contact with the bottom end of ball head 6 and the interior of lower ball seat 7, respectively. When the ball pin assembly is subjected to force from below or the side, the lower spring washer 14 will be the first to be stressed and undergo elastic deformation. Due to its elasticity, it can convert external force into its own elastic potential energy, thereby mitigating the direct impact of impact force on ball head 6 and lower ball seat 7. When the vehicle is in motion, the ball pin assembly will be continuously subjected to various external forces such as road bumps and lateral forces during vehicle turning. At this time, upper spring washer 13 and lower spring washer 14 will work together, absorbing and buffering the impact force in the corresponding direction according to the direction and magnitude of the force, ensuring that ball head 6 can move flexibly within upper ball seat 5 and lower ball seat 7 while effectively reducing damage to components from impact force.

[0036] When the ball joint assembly is subjected to external force, the force first acts on the cue stick 4, and then is transmitted through the ball head 6 to the upper spring washer 13 and the lower spring washer 14. Since both the upper spring washer 13 and the lower spring washer 14 are annular with an opening on one side, this structural design allows them to better distribute the force when subjected to stress. When subjected to lateral force, the spring washers distribute the force across the entire annulus during deformation, preventing excessive localized stress that could damage components. After being buffered and dispersed by the spring washers, the force is then transmitted to components such as the upper ball seat 5, the lower ball seat 7, and the shaft 9, thereby reducing the stress on each component and ensuring the structural stability and reliability of the ball joint assembly.

[0037] The elastic deformation of the upper spring washer 13 and the lower spring washer 14 absorbs and buffers the impact force, significantly reducing the peak stress of the ball pin assembly under impact. In actual tests, compared with ball pin assemblies without such spring washer structures, the ball pin assembly with this design reduces the stress on components under the same impact force, effectively reducing the risk of component damage due to impact, and improving the impact resistance and service life of the ball pin assembly. This solves the problem of poor impact resistance in ball pin assemblies.

[0038] Please see the appendix Figure 2 -Appendix Figure 4 The ball head 6 is round in shape and is made of alloy steel. The cue stick 4 is also made of alloy steel and is connected to the ball head 6.

[0039] Specifically, the ball head 6 is circular in shape, allowing it to rotate freely within the upper ball seat 5 and lower ball seat 7. Both the ball head 6 and the club 4 are made of alloy steel and are connected using a specific processing technique to form a single integrated structure. When the car's suspension and steering system are operating, various forces from the vehicle's movement will first act on the club 4. Because the club 4 is connected to the ball head 6 and made of the same material, the force can be stably transmitted to the ball head 6 through the connection point. When encountering significant impact forces during vehicle operation, the ball head 6 and the club 4, thanks to the high strength of the alloy steel, can maintain their shape and structural integrity, preventing severe deformation or damage.

[0040] With ball joint 6 and ball shaft 4 made of alloy steel, the ball joint assembly possesses high strength and durability. During long-term use, it can withstand various complex external forces without easily deforming, breaking, or excessive wear. Actual testing and application verification have shown that compared to ball joint assemblies made of other materials, this design extends service life under the same operating conditions, significantly reducing the frequency of replacement and maintenance, and improving the reliability of the automotive suspension and steering systems. It also solves the problem of replacement costs due to wear.

[0041] Please see the appendix Figure 1 The pin 9 is made of 40Cr alloy steel. The pin 9 is used to connect the inside of the sleeve 1. The top of the sleeve 1 is provided with a rubber sleeve 3. The middle part of the rubber sleeve 3 is provided on the outer wall of the cue stick 4. The outer walls of the sleeve 1 and the rubber sleeve 3 are provided with clamps 2, which are used to fix the connection between the sleeve 1 and the rubber sleeve 3.

[0042] Specifically, the pin 9 is made of 40Cr alloy steel, which, thanks to its excellent mechanical properties, securely connects to the inside of the sleeve 1. 40Cr alloy steel possesses high strength and toughness, capable of withstanding significant loads, ensuring the reliability of the connection between the pin 9 and the sleeve 1. The sleeve 1, as the fundamental support component of the entire structure, provides mounting positions for other components. The rubber sleeve 3 at the top of the sleeve 1 fits over the outer wall of the cue stick 4, serving as a buffer, seal, and protector. The rubber sleeve 3 is elastic, reducing friction and collision between the cue stick 4 and the sleeve 1 during cue stick movement, while preventing dust, moisture, and other impurities from entering and affecting the performance of the pin assembly. A clamp 2 is installed on the outer walls of the sleeve 1 and the rubber sleeve 3. Tightening the clamp 2 creates a clamping force, tightly fixing the sleeve 1 and the rubber sleeve 3 together, preventing the rubber sleeve 3 from shifting or falling off during cue stick movement.

[0043] The properties of 40Cr alloy steel enable pin 9 to effectively resist deformation and fracture during force transmission. When the ball joint assembly is subjected to various forces from the vehicle's suspension or steering system, these forces are transmitted to pin 9 via ball joint 4 and ball head 6, and then from pin 9 to sleeve 1. Due to the high strength and toughness of 40Cr alloy steel, pin 9 can stably withstand and transmit these forces, ensuring the structural stability of the entire ball joint assembly. Under complex working conditions, such as when the vehicle travels over bumpy roads or performs severe steering operations, pin 9 will not be damaged due to excessive force, ensuring the normal operation of the ball joint assembly.

[0044] The connection between pin 9 and sleeve 1, along with the cooperation of rubber sleeve 3 and clamp 2, ensures a reliable connection between the various components of the ball pin assembly. During long-term use, problems such as loosening of pin 9 or detachment of rubber sleeve 3 will not occur, guaranteeing the integrity of the ball pin assembly structure and improving its reliability. This also solves the problem of unstable connections.

[0045] Please see the appendix Figure 8 A method for using a split-type adjustable gap anti-impact ball pin assembly, used in a manufacturing apparatus for a split-type adjustable gap anti-impact ball pin assembly, includes the following steps: S1. Assemble the ball head and the ball seat to ensure a tight fit between them; S2. Insert the pin into the ball seat and fix it with the connecting sleeve; S3. Rotate the adjusting nut to adjust the gap between the ball head and the ball seat to the set value; S4. Install the locking washer to ensure that the adjusting nut does not loosen.

[0046] Specifically, in step S1, the ball head and ball seat are designed with specific shapes and tolerances. The dimensional accuracy of the ball head closely matches the inner diameter of the ball seat, and through precise machining processes, the two can fit together tightly during assembly. This tight fit reduces the wobble of the ball head within the ball seat, ensuring the stability of the ball pin assembly in its initial state.

[0047] In step S2, after the pin is inserted into the ball seat, the connecting sleeve connects to the pin and simultaneously to the ball seat. The fastening principle of the connecting sleeve is based on friction and the stability of the mechanical connection. By tightening the connecting sleeve, sufficient friction is generated between it, the pin, and the ball seat to prevent the pin from shifting or loosening within the ball seat, thus ensuring the structural integrity and stability of the ball-pin assembly.

[0048] In step S3, the clearance between the ball head and the ball seat is adjusted to the set value. The adjusting nut and the pin are connected by a thread. When the adjusting nut is rotated, due to the transmission action of the thread, the adjusting nut will move axially along the pin. The movement of the adjusting nut changes the size of the clearance between the ball head and the ball seat.

[0049] In step S4, when installing the locking washer, place it between the adjusting nut and the ball seat. When the adjusting nut is tightened, the locking washer generates resistance through its own elastic deformation, preventing the adjusting nut from rotating when subjected to vibration, impact, or other external forces. This ensures that the position of the adjusting nut is fixed and that the gap between the ball head and the ball seat does not change.

[0050] S1 also includes: using high-precision measuring tools to measure the dimensions of the ball head and ball seat, so that the diameter of the ball head and the inner diameter of the ball seat meet the design tolerance range.

[0051] Specifically, before S1 assembly, high-precision measuring tools such as calipers, micrometers, and inside gauges are used to measure the dimensions of the ball head and ball seat. These measuring tools utilize mechanical structures, optical principles, or electronic technology to convert the dimensional information of the ball head diameter and the ball seat inner hole diameter into readable data. By measuring the key dimensions of the ball head and ball seat using these measuring tools, accurate dimensional data can be obtained.

[0052] By precisely measuring the dimensions of the ball head and ball seat before assembly and ensuring they conform to design tolerances, high-precision assembly of the ball head and ball seat can be achieved. The fit accuracy between the ball head and ball seat is significantly improved, with a uniform and stable clearance, reducing assembly errors. In practical applications, ball pin assemblies assembled using this process exhibit smoother and more stable movement of the ball head within the ball seat, effectively enhancing the overall performance and reliability of the ball pin assembly. This solves the problem of low assembly accuracy.

[0053] S2 also includes: before inserting the pin, the pin is degreased and derusted, which can be done by chemical cleaning or mechanical grinding to ensure that the pin surface is clean.

[0054] Specifically, when using chemical cleaning methods to degrease and remove rust from pins, specific chemical cleaning agents react with the oil and rust. For oil, the surfactant molecules in the cleaning agent have both lipophilic and hydrophilic groups. The lipophilic groups interact with the oil molecules, emulsifying and dispersing the oil in the cleaning solution, causing it to detach from the pin surface. For rust, acidic or alkaline cleaning agents react chemically with the rust (mainly composed of metal oxides), dissolving the rust and converting it into water-soluble salts, thus removing the rust. Through this chemical reaction, the cleaning agent can penetrate deep into the tiny pores and crevices on the pin surface, thoroughly removing oil and rust and achieving surface cleanliness.

[0055] Rust removal treatment removes the rust layer from the pin surface, preventing further corrosion of the pin base. Simultaneously, the pin surface becomes smoother after chemical cleaning or mechanical grinding, making it less prone to moisture and corrosive substances buildup. This reduces the likelihood of corrosion during subsequent use, extends the pin's service life, and improves the corrosion resistance of the ball joint assembly, ensuring stable operation even in harsh environments. This effectively solves the problem of pin corrosion.

[0056] S3 also includes: when rotating the adjusting nut, using an angle measuring instrument to precisely control the rotation angle of the adjusting nut, and combining the gap measurement data to ensure the accuracy of the gap adjustment.

[0057] Specifically, angle measuring instruments are used to precisely control the rotation angle of the adjusting nut. Angle measuring instruments typically operate based on optical, electromagnetic induction, or mechanical principles. Optical angle measuring instruments utilize phenomena such as light interference and diffraction to convert the rotation angle of the adjusting nut into a light signal, which is then converted into an electrical signal by a photoelectric conversion device for measurement and display. Electromagnetic induction angle measuring instruments determine the angle by sensing changes in the magnetic field generated when the adjusting nut rotates. Mechanical angle measuring instruments generally use mechanical structures such as gears and dials to visually display the rotation angle. These angle measuring instruments can obtain the rotation angle information of the adjusting nut in real time and with high accuracy.

[0058] By precisely controlling the rotation angle of the adjusting nut using an angle measuring instrument and combining it with clearance measurement data, high-precision adjustment of the clearance between the ball head and the ball seat can be achieved. This precise adjustment can control the clearance within an extremely small error range. For example, in applications where the clearance accuracy of the ball joint assembly is extremely high in automotive suspension and steering systems, it can ensure that the clearance reaches the precise value required by the design, improving the assembly accuracy and performance stability of the ball joint assembly. This solves the problem of low clearance adjustment accuracy.

[0059] S4 also includes: after the locking gasket is installed, perform an overall performance test on the ball pin assembly to verify whether the performance of the ball pin assembly under various working conditions meets the design requirements.

[0060] Specifically, when conducting overall performance testing on the ball joint assembly, specialized testing equipment is used to simulate various real-world operating conditions. A vibration table simulates the vibrations experienced by the ball joint assembly during vehicle operation, with appropriate vibration frequencies, amplitudes, and directions set according to different road conditions. Loading devices apply forces of varying magnitudes and directions to simulate lateral forces during steering and impact forces during braking. These simulations are based on the analysis of various forces and motion states experienced by the ball joint assembly in actual automotive systems, aiming to realistically reproduce the complex situations faced by the ball joint assembly in real-world use. Data collected by these sensors is analyzed to assess the performance of the ball joint assembly under different operating conditions, comparing it with the design requirements to determine its compliance.

[0061] By simulating various operating conditions to conduct overall performance tests, potential problems with the ball joint assembly can be identified in advance, such as component loosening, excessive clearance variations, and insufficient strength. Addressing these issues before product deployment significantly improves the reliability of the ball joint assembly in practical applications. Ball joint assemblies that pass the tests can operate stably in automotive suspension and steering systems, reducing the probability of malfunctions and ensuring vehicle driving safety. This resolves potential quality issues.

[0062] Combination Figures 1 to 8 The working steps of a split-type adjustable gap anti-impact ball pin assembly preparation device are as follows: Based on a sleeve, the pin at its inner bottom end is made of 40Cr alloy steel. Utilizing the high strength and toughness of this material, it is connected to a nut via threads, providing stable support for the entire structure. A locking washer on the nut prevents the nut from loosening, ensuring the pin's position is fixed. The lower ball seat is connected to the upper ball seat via a fixing plate, bolts, and another fixing plate. This connection method not only makes the ball seat structure stable but also allows for fine-tuning of the ball seat position by adjusting the tightness of the bolts. The club and ball head are both made of alloy steel. After connection, they mate with the upper ball seat, allowing the ball head to rotate freely within the ball seat. A rubber sleeve at the top of the sleeve is fitted onto the outer wall of the club, using the elasticity of the rubber to buffer the friction and collision between the club and the sleeve, while preventing impurities from entering. A clamp tightly fixes the sleeve and rubber sleeve, ensuring the stability of the connection.

[0063] The gap between the ball head and the ball seat is adjusted by rotating nut one. Nut one is threaded with the pin shaft, causing it to rotate and move axially, which in turn moves the lower and upper ball seats relative to the ball head, thus changing the gap size. During the adjustment process, an angle measuring instrument is used to precisely control the rotation angle of nut one, and the gap measurement data is combined to ensure the accuracy of the gap adjustment and meet the strict gap requirements under different working conditions.

[0064] The upper and lower spring washers play a crucial role in the impact resistance of the ball joint assembly. When the ball joint assembly is impacted, whether by road bumps or vehicle steering, the spring washers deform due to their elasticity, converting the impact force into elastic potential energy and thus providing a cushioning effect. Their annular, one-sided open design allows the spring washers to better disperse impact force, protecting components such as the ball head and ball seat from damage and improving the impact resistance and service life of the ball joint assembly.

[0065] Throughout the entire manufacturing and assembly process, strict quality control is maintained at each stage. Before assembly, the dimensions of the ball head and ball seat are measured to ensure they meet the design tolerances; the pins are degreased and derusted to enhance connection reliability; after assembly, locking washers are installed and overall performance testing is conducted, simulating various working conditions to check whether the performance of the ball pin assembly meets the design requirements, thus ensuring product quality.

[0066] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A split type impact resistant ball pin assembly with adjustable clearance manufacturing device comprising a sleeve (1), characterized in that, The inner bottom end of the sleeve (1) is provided with a pin shaft (9), the outer wall of the pin shaft (9) is provided with an outer thread one, the outer thread one of the pin shaft (9) is threadedly connected with a nut one (8), the upper surface of the nut one (8) is provided with a locking washer one (11), the middle part of the locking washer one (11) is arranged on the outer wall of the pin shaft (9), the top end of the locking washer one (11) is provided with a lower ball seat (7), the two sides of the lower ball seat (7) are fixedly provided with a fixed plate two (19), the lower surface of the fixed plate two (19) is provided with a locking washer two (17), the bottom end of the locking washer two (17) is provided with a nut cap (18), the middle part of the nut cap (18) is provided with a bolt (12), one end of the outer wall of the bolt (12) is threadedly connected in the middle part of the fixed plate two (19), the other end of the bolt (12) is threadedly connected with a fixed plate one (16), the top end of the fixed plate one (16) is provided with a nut two (15), the middle part of the nut two (15) is threadedly connected with one end of the bolt (12), one side of the fixed plate one (16) is fixedly arranged on one side of the upper ball seat (5).

2. A split-type impact absorbing ball pin assembly with adjustable clearance manufacturing device according to claim 1, characterized in that, The top end of the pin shaft (9) is arranged at the bottom end of the lower ball seat (7), the inside of the lower ball seat (7) is provided with a lower spring washer (14), the upper surface of the lower spring washer (14) is arranged at the bottom end of the ball head (6), the lower surface of the lower spring washer (14) is arranged in the inside of the lower ball seat (7), the top end of the ball head (6) is provided with an upper spring washer (13), the upper surface of the upper spring washer (13) is arranged in the inside of the upper ball seat (5), the top end of the upper ball seat (5) is provided with a club (4), the outer wall of the club (4) is provided with an outer thread two.

3. A split gap adjustable anti-impact ball pin assembly manufacturing device according to claim 2, characterized in that, One side of the upper spring washer (13) and the lower spring washer (14) is provided with an opening, the material of the upper spring washer (13) and the lower spring washer (14) is alloy steel, the shape of the upper spring washer (13) and the lower spring washer (14) is a circular ring, which is used for resisting impact.

4. A split gap adjustable anti-impact ball pin assembly manufacturing device according to claim 2, wherein, The shape of the ball head (6) is circular, the material of the ball head (6) is alloy steel, the material of the club (4) is also alloy steel, the club (4) is connected with the ball head (6).

5. A split gap adjustable anti-impact ball pin assembly manufacturing device according to claim 1, wherein, The pin shaft (9) is made of 40Cr alloy steel material, the pin shaft (9) is used for connecting the inside of the sleeve (1), the top end of the sleeve (1) is provided with a rubber sleeve (3), the middle part of the rubber sleeve (3) is arranged on the outer wall of the club (4), the outer wall of the sleeve (1) and the rubber sleeve (3) is provided with a clamp (2), the clamp (2) is used for fixing the connection of the sleeve (1) and the rubber sleeve (3).

6. A method of using a split gap adjustable impact ball pin assembly, characterized in that, A preparation device of the split type gap adjustable anti-impact ball pin assembly of any one of claims 1-5, comprising the following steps: S1, assemble the ball head and the ball seat to ensure that they fit tightly; S2, insert the pin shaft into the ball seat and fix it through the connecting sleeve; S3, rotate the adjusting nut to adjust the gap between the ball head and the ball seat to the set value; S4, install the locking washer to ensure that the adjusting nut does not loosen.

7. A method of using a split-type impact-resistant ball pin assembly with adjustable clearance according to claim 6, wherein, The S1 further comprises: using high-precision measuring tools to measure the size of the ball head and the ball seat, so that the diameter of the ball head and the inner hole diameter of the ball seat meet the design tolerance range.

8. The method of using a split-type impact-resistant ball pin assembly with adjustable clearance of claim 6, wherein, The S2 further comprises: before inserting the pin shaft, the pin shaft is subjected to oil removal and rust removal treatment, which can be in the form of chemical cleaning or mechanical polishing, to ensure the cleanliness of the surface of the pin shaft.

9. A method of using a split-type impact-resistant ball pin assembly with adjustable clearance according to claim 6, wherein, The S3 further comprises: when rotating the adjusting nut, an angle measuring instrument is used to accurately control the rotation angle of the adjusting nut, and the accuracy of the gap adjustment is ensured in combination with the gap measurement data.

10. The method of using a split-type impact-resistant ball pin assembly with adjustable clearance of claim 6, wherein, The S4 further comprises: after completing the installation of the locking washer, the overall performance test of the ball pin assembly is carried out to check whether the performance of the ball pin assembly under various working conditions meets the design requirements.

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