A coating detection mechanism of a brake caliper guide pin coating device

Abstract

The application discloses a kind of coating detection mechanisms of brake caliper guide pin lubricating device, it is related to the brake accessory manufacturing technical field of electric vehicle, the coating detection mechanisms include: detection platform 10, detection platform 10 is fixed with lifting frame 12, rotatable fixing ring 13 for fixing caliper guide pin lubricating device is arranged on lifting frame 12;Detection platform 10 is provided with caliper guide pin lubricating station 16 and coating detection station 14;The position of rotatable fixing ring 13 corresponds with caliper guide pin lubricating station 16;Caliper guide pin lubricating station 16 is provided with the first turntable of bearing brake disc;Coating detection station 14 is provided with the second turntable of bearing brake disc, and machine vision sensor 15 carries out image acquisition processing to coated caliper guide pin.It guarantees the accuracy of smearing position, prevents the appearance lubricating grease redundant leakage to brake pad, and accurate industrial camera detection.

Description

Technical Field

[0001] This invention relates to the field of brake component manufacturing technology for electric vehicles, and particularly to a coating inspection mechanism for a brake caliper guide pin grease application device. Background Technology

[0002] Automotive brake calipers are core safety components of a vehicle's braking system, directly determining braking performance and driving safety. The caliper guide pin, as a key sliding guide component of the brake caliper, primarily ensures the smooth reciprocating sliding of the caliper body along the guide pin, achieving precise contact and separation of the brake pads. It is a core structure ensuring sensitive and smooth braking action. Before assembling the caliper guide pin, a special brake grease must be evenly applied to its outer surface. The quality of grease application plays a crucial role in the performance of the guide pin and even the entire brake caliper.

[0003] Specifically, the grease on the guide pin surface can form a stable lubrication layer during the sliding process of the guide pin and the caliper, effectively eliminating the brake squealing sound generated during vehicle braking and optimizing braking quietness; at the same time, it can significantly reduce the sliding friction loss between the guide pin and the caliper base, avoid wear and tear problems during the break-in period of parts, and effectively resist the high temperature environment under braking conditions, prevent the guide pin from getting stuck due to heat and seizing failure, ensure the long-term stable operation of the brake caliper, and avoid malfunctions such as brake lag and brake pull caused by guide pin jamming.

[0004] In the manufacturing of brake components for electric vehicles, the industry commonly employs traditional manual methods for applying grease to caliper guide pins. Even some semi-automatic grease-applying equipment can only perform simple squeezing and spreading actions, lacking precise coating control and inspection mechanisms. This type of grease-applying method has many inherent defects in actual production, easily leading to substandard grease coating quality. Firstly, manual or simple equipment grease application has poor precision, easily resulting in misaligned application positions and uneven coating areas. This often leads to localized missed areas or insufficient grease on the guide pins, resulting in inadequate lubrication at those locations. Consequently, the grease fails to provide the necessary protection against noise reduction, wear, and seizure, significantly shortening the lifespan of the guide pins and increasing the probability of brake failure.

[0005] On the other hand, existing grease application processes struggle to precisely control the amount and boundaries of grease, easily leading to over-application and edge overflow. Excess grease can easily spread to uncoated areas such as the base of the guide pin and the inside of the matching dust boot. During subsequent assembly of the guide pin and caliper, this excess grease is squeezed outwards, easily leaking and contaminating the friction surfaces of the brake pads or discs. Because grease has an extremely low coefficient of friction, it directly reduces the braking friction between the brake pads and discs, causing a decrease in braking force and an increase in braking distance, severely impacting vehicle braking performance. Furthermore, grease contamination of the friction surfaces can cause persistent brake noise and brake vibration, significantly affecting the driving experience and safety, posing serious production quality risks and road safety hazards.

[0006] Currently, most industry practices regarding guide pin grease application focus solely on automating the process, lacking dedicated grease quality inspection mechanisms. This hinders comprehensive and accurate quality testing of the greased guide pins, making it difficult to effectively identify defects such as missed areas, insufficient grease, over-coating, edge overflow, and grease contamination at the root and dust boot. Consequently, a large number of substandard guide pins flow into the assembly process, resulting in low product yield, significant quality control challenges, and an inability to meet the high-precision and high-safety manufacturing requirements of automotive braking components. Therefore, developing a grease inspection mechanism capable of comprehensively inspecting the grease coating quality of caliper guide pins, accurately identifying various coating defects, and mitigating safety hazards has become a pressing technical challenge for those skilled in the art. Summary of the Invention

[0007] This invention provides a coating and inspection mechanism for a brake caliper guide pin grease application device, a dedicated coating device adapted to the guide pin grease application process, and a post-coating inspection mechanism.

[0008] According to one aspect of this disclosure, a coating detection mechanism for a brake caliper guide pin grease applicator is provided, the coating detection mechanism comprising: The testing platform 10 has a lifting frame 12 fixed on it, and the lifting frame 12 is provided with a rotatable fixing ring 13 for fixing the caliper guide pin grease applicator. The testing platform 10 is equipped with a caliper guide pin grease application station 16 and a coating testing station 14; The position of the rotatable retaining ring 13 corresponds to the grease application station 16 of the caliper guide pin; The caliper guide pin grease station 16 is equipped with a first turntable that supports the brake disc. The brake disc rotates at a predetermined angle on the first turntable to adapt to the grease application of different guide pins on the brake disc. The coating inspection station 14 is equipped with a second turntable that supports the brake disc. The brake disc rotates uniformly on the second turntable for one revolution. The machine vision sensor 15 performs image acquisition and processing on the coated caliper guide pin and transmits the processing results to the monitoring host 11.

[0009] In one possible implementation, the machine vision sensor 15 is an industrial camera; The monitoring host 11 determines whether there is missed coating or local lack of grease based on the images collected by the machine vision sensor 15, identifies grease overflow at the coating edge, excess grease at the root, and grease on the inside of the dust cover, and filters out the brake discs with unqualified coating. The machine vision sensor 15 can collect the identification information of the brake disc, and the monitoring host 11 saves the identification information and the detection results.

[0010] In one possible implementation, the caliper guide pin grease applicator includes: a lubrication cylinder 1 and a storage cylinder 2; Storage cylinder 2 is installed on the upper outer wall of lubrication cylinder 1; storage cylinder 2 is used to store lubricating grease, and the lower part of storage cylinder 2 is provided with a connection to lubrication cylinder 1; The lubrication cylinder 1 has a groove 701 inside. The groove 701 is a cylindrical barrel with an inner diameter smaller than that of the lubrication cylinder 1. Multiple lubrication holes 6 are evenly opened on the groove 701. A lubrication groove 5 is formed between the lubrication cylinder 1 and the groove 701. The lubrication groove 5 is used to hold lubricating grease. A sponge pad 7 is also attached to the inner wall of the groove 701. The lower end of the lubrication cylinder 1 is provided with a guide pin for insertion; After the guide pin is inserted, the rotating retaining ring 13 rotates to drive the caliper guide pin grease applicator, lubricating the grease until it penetrates through the lubrication hole 6 to the sponge pad 7, thereby applying the grease to the side wall of the guide pin.

[0011] In one possible implementation, the upper end of the lubrication cylinder 1 is provided with an inner cavity space adjustment module, an inner cavity space adjustment module cylindrical limit block 4, and an adjustment screw 401. The adjustment screw 401 passes through the through hole in the center of the upper cover of the lubrication cylinder 1, and the adjustment screw 401 is connected to the cylindrical limit block 4 through the axial threaded hole of the cylindrical limit block 4.

[0012] In one possible implementation, the lower part of the storage cylinder 2 is a liquid storage cylinder 8; A rectangular opening is provided on the side wall of the liquid storage cylinder 8. The rectangular opening blocks the cleaning liquid in the liquid storage cylinder 8 through the cleaning pad 9. The cleaning pad 9 is provided with multiple seepage holes 801. The cleaning liquid in the liquid storage cylinder 8 seeps into the cleaning pad 9 through the seepage holes 801. The cleaning pad 9 contacts the guide pin that needs to be cleaned for cleaning. The protective cap 901 is used to seal the liquid storage cylinder 8.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention addresses the technical defects of existing caliper guide pin grease application processes, such as incomplete or insufficient grease application, excessive grease application, edge overflow, and grease contamination in non-working areas. It designs a dedicated coating inspection mechanism adapted to the guide pin grease application process, which has significant technical advantages and practical application effects compared to existing technologies, as detailed below: Firstly, this device, working in conjunction with a grease application unit, significantly improves the accuracy of grease application while ensuring uniform grease coverage on the guide pin surface, completely resolving the drawbacks of traditional application methods such as misalignment and messy application. By precisely controlling the grease application area and amount, it effectively prevents excess grease from overflowing and leaking onto the brake pads and discs, ensuring the effective friction coefficient of the brake friction pair and maintaining stable effective braking force. This avoids safety issues such as insufficient braking force and brake failure caused by grease leakage, fundamentally guaranteeing the stability and reliability of vehicle braking performance. Simultaneously, this device is adaptable to an adjustable lubrication cylinder structure, allowing for adjustment of the internal working space of the lubrication cylinder according to the different specifications and dimensions of the guide pins. This precisely adapts to the standard grease application position of different guide pin models, further ensuring the coating accuracy of various guide pin workpieces, significantly expanding the overall applicability of the device, and improving its versatility and adaptability to different operating conditions.

[0014] Secondly, our organization possesses the capability to detect and assist in cleaning grease leaks, enabling timely intervention and damage prevention. During the grease application process, if a small amount of grease inadvertently leaks and contaminates non-target areas such as brake pads, our testing agency can quickly and accurately identify the location and extent of the leak. We promptly alert staff to clean the leaked grease at the designated point, preventing the continued spread of residual grease and its large-area adhesion to the brake friction surfaces. This completely eliminates problems such as persistent brake noise, brake vibration, and brake force loss caused by grease diffusion, minimizing driving safety hazards caused by coating defects and further improving the quietness and safety of braking operations. Simultaneously, our agency can accurately identify various exceeding standards conditions, such as excessive grease application, edge overflow, and grease contamination at the root of guide pins and inside dust boots. We control poor coating issues at the source, providing double assurance that grease application quality meets standards.

[0015] Furthermore, our testing organization is compatible with automated grease coating production lines, enabling real-time online inspection after grease coating, replacing traditional manual visual inspection. Compared to the drawbacks of manual inspection, such as high subjectivity, low accuracy, high missed detection rate, and low efficiency, our organization offers standardized testing, high recognition accuracy, and fast response speed. It can achieve full-coverage inspection of workpieces, preventing unqualified products from entering the assembly process, significantly improving the product yield of caliper guide pin grease coating, reducing rework costs and scrap losses, effectively optimizing the production line quality control system, and enhancing the precision and standardization of automated parts production.

[0016] Finally, the invention has strong structural adaptability and can be matched with various specifications of brake caliper guide pin grease application equipment. It does not require major modifications to existing production lines, is easy to install and debug, and operates stably. It can be compatible with large-scale, batch industrial production scenarios. While ensuring the high precision and high safety production requirements of brake components, it effectively improves production efficiency and reduces production control costs, and has strong practicality and industrial promotion value. Attached Figure Description

[0017] Figure 1 A perspective view of a guide pin grease applicator according to an embodiment of the present disclosure is shown.

[0018] Figure 2 A cross-sectional view of a guide pin grease applicator according to an embodiment of the present disclosure is shown.

[0019] Figure 3 An exploded view of a lubrication tank according to an embodiment of the present disclosure is shown.

[0020] Figure 4 A cross-sectional view of a liquid storage tank according to an embodiment of the present disclosure is shown.

[0021] Figure 5 This diagram shows an overall schematic of the coating detection mechanism of a brake caliper guide pin grease applicator according to an embodiment of the present disclosure.

[0022] Among them, 1: lubrication cylinder; 2: storage cylinder; 3: insertion port; 4: limit block; 401: adjusting screw; 5: lubrication groove; 6: lubrication hole; 601: baffle; 7: sponge pad; 701: groove; 8: liquid storage cylinder; 9: cleaning pad; 901: protective cover; 10: detection platform; 11: monitoring host; 12: lifting frame; 13: rotatable fixing ring; 14: coating detection station; 15: machine vision sensor; 16: machine vision sensor. Detailed Implementation

[0023] Various exemplary embodiments, features, and aspects of this disclosure will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0024] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0025] Furthermore, to better illustrate this disclosure, numerous specific details are set forth in the following detailed description. Those skilled in the art will understand that this disclosure can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art have not been described in detail in order to highlight the main points of this disclosure.

[0026] A coating detection mechanism for a brake caliper guide pin grease application device, the coating detection mechanism comprising: The testing platform 10 has a lifting frame 12 fixed on it. The lifting frame 12 is provided with a rotatable fixing ring 13 for fixing the caliper guide pin grease applicator. The lifting frame 12 can be an electric lifting frame. The testing platform 10 is equipped with a caliper guide pin grease application station 16 and a coating testing station 14; The position of the rotatable retaining ring 13 corresponds to that of 16; The caliper guide pin grease station 16 is equipped with a first turntable that supports the brake disc. The brake disc rotates at a predetermined angle on the first turntable to adapt to the grease application of different guide pins on the brake disc. The coating inspection station 14 is equipped with a second turntable that supports the brake disc. The brake disc rotates uniformly on the second turntable for one revolution. The machine vision sensor 15 performs image acquisition and processing on the coated caliper guide pin and transmits the processing results to the monitoring host 11.

[0027] For example, both the first and second turntables are electrically powered (e.g., driven by a motor) and can be controlled by a remote control.

[0028] In one possible implementation, the machine vision sensor 15 is an industrial camera; The monitoring host 11 determines whether there is missed coating or local lack of grease based on the images collected by the machine vision sensor 15, identifies grease overflow at the coating edge, excess grease at the root, and grease on the inside of the dust cover, and filters out the brake discs with unqualified coating. For example, the image processing methods or software used in the prior art for processing the acquired images in this application are not innovative aspects of this application, and therefore will not be elaborated upon here.

[0029] The machine vision sensor 15 can collect the identification information of the brake disc, and the monitoring host 11 saves the identification information and the detection results.

[0030] In practical operation, the overall workflow of this invention is divided into four stages: workpiece clamping and positioning, adaptive coating at the grease application station, full-circumference image detection at the inspection station, and quality judgment output. The specific working process is as follows: First, the equipment enters the standby state. The operator or automated robotic arm places the brake disc and matching caliper guide pin assembly to be processed in the corresponding working area of ​​the inspection platform. Using the lifting frame fixedly installed on the inspection platform in conjunction with the rotatable fixing ring, the caliper guide pin grease application device is fixed and its posture is calibrated to ensure that the overall position of the grease application device is precisely aligned with the caliper guide pin grease application station. This achieves precise positioning of the grease application mechanism and provides a structural foundation for subsequent precise grease application operations.

[0031] After the workpiece is clamped, the operating system switches to the grease application process. The workpiece, containing the brake disc, is positioned at the caliper guide pin grease application station. A first turntable at this station supports and adjusts the angle of the brake disc. Based on the installation positions of the different guide pins around the brake disc, the first turntable is controlled to rotate the brake disc by a predetermined angle, sequentially aligning each guide pin on the brake disc. The fine-tuning function of the rotatable fixing ring allows for real-time matching of the guide pin's posture and angle, ensuring precise and even grease application. This effectively avoids problems common with traditional application methods, such as coating misalignment, localized insufficient grease, edge overflow, and accidental grease application to the root and inside of the dust cover, reducing grease leakage and overflow defects at the source. Furthermore, the operating space of the grease application device can be adjusted to accommodate the dimensions of different guide pin specifications, meeting the precise grease application needs of various guide pin models and improving the device's versatility.

[0032] After the grease application is completed on a single guide pin or all guide pins on the brake disc, the greased brake disc is transferred to the coating inspection station, where a second turntable provides stable support. Once the inspection operation begins, the second turntable rotates the brake disc at a constant speed for one revolution, allowing all the greased caliper guide pins on the brake disc to sequentially pass through the inspection field of the machine vision sensor, achieving omnidirectional, blind-spot-free image acquisition. The machine vision sensor acquires coating images of each guide pin surface in real time and transmits the acquired high-definition image signals to the monitoring host in real time.

[0033] Finally, the monitoring host performs calculations, analysis, and comparisons on the received image data to accurately identify various coating defects on the guide pin surface, such as missed coating, localized lack of grease, excessive coating, edge grease overflow, grease contamination at the base of the guide pin, and accidental grease application inside the dust cover. If the system detects substandard grease coating or grease leakage and diffusion, it can promptly issue an early warning signal, reminding personnel to clean the leaked or excess grease at designated points to prevent the grease from continuing to spread and contaminate the brake pads and brake disc friction surfaces, thus preventing safety hazards such as reduced braking force and abnormal brake noise caused by a decrease in the coefficient of friction. If the coating quality meets all standards, the workpiece is deemed qualified and can proceed to the next assembly process.

[0034] In summary, this invention achieves integrated operation of caliper guide pin greasing, inspection, and defect early warning through the coordinated cooperation of precise alignment and coating at the greasing station and full-circumference visual re-inspection at the inspection station. This effectively ensures the coating accuracy and quality of the guide pins, significantly reduces the probability of defective products entering the assembly process, and improves the overall quality and production stability of caliper guide pin greasing operations.

[0035] In one possible implementation, the caliper guide pin grease applicator includes: a lubrication cylinder 1 and a storage cylinder 2; Storage cylinder 2 is installed on the upper outer wall of lubrication cylinder 1; storage cylinder 2 is used to store lubricating grease, and the lower part of storage cylinder 2 is provided with a connection to lubrication cylinder 1; The lubrication cylinder 1 has a groove 701 inside. The groove 701 is a cylindrical barrel with an inner diameter smaller than that of the lubrication cylinder 1. Multiple lubrication holes 6 are evenly opened on the groove 701. A lubrication groove 5 is formed between the lubrication cylinder 1 and the groove 701. The lubrication groove 5 is used to hold lubricating grease. A sponge pad 7 is also attached to the inner wall of the groove 701. The lower end of the lubrication cylinder 1 is provided with a guide pin for insertion; After the guide pin is inserted, the rotating retaining ring 13 rotates to drive the caliper guide pin grease applicator, lubricating the grease until it penetrates through the lubrication hole 6 to the sponge pad 7, thereby applying the grease to the side wall of the guide pin.

[0036] In one possible implementation, the upper end of the lubrication cylinder 1 is provided with an inner cavity space adjustment module, an inner cavity space adjustment module cylindrical limit block 4, and an adjustment screw 401. The adjustment screw 401 passes through the through hole in the center of the upper cover of the lubrication cylinder 1, and the adjustment screw 401 is connected to the cylindrical limit block 4 through the axial threaded hole of the cylindrical limit block 4.

[0037] The lubrication cylinder, lubrication groove, lubrication hole, and sponge pad are installed. After being fitted onto the outside of the guide pin, they are rotated to apply grease, ensuring the accuracy of the application position. An adjusting screw and a limit block are installed to adjust the internal space of the lubrication cylinder according to the actual size of the guide pin.

[0038] In one possible implementation, the lower part of the storage cylinder 2 is a liquid storage cylinder 8; A rectangular opening is provided on the side wall of the liquid storage cylinder 8. The rectangular opening blocks the cleaning liquid in the liquid storage cylinder 8 through the cleaning pad 9. The cleaning pad 9 is provided with multiple seepage holes 801. The cleaning liquid in the liquid storage cylinder 8 seeps into the cleaning pad 9 through the seepage holes 801. The cleaning pad 9 contacts the guide pin that needs to be cleaned for cleaning. The protective cap 901 is used to seal the liquid storage cylinder 8.

[0039] During use, add sufficient grease to the storage cylinder 2 so that the grease also fills the lubrication groove 5. Then, according to the size of the guide pin that needs lubrication, turn the adjusting screw 401 to engage with the threaded hole, causing the limiting block 4 to rotate and move downward in the inner cavity of the lubrication cylinder 1, thereby changing the space size of the inner cavity of the lubrication cylinder 1. After removing the closing plug 3, insert the guide pin into the lubrication cylinder 1 through the insertion port 3. Then, adjust the position of the limiting block 4 again according to the required length of grease to prevent excess grease from entering the lubrication cylinder 1. After the guide pin is inserted, rotate the entire device to lubricate until the grease penetrates through the lubrication hole 6 to the sponge pad 7, thereby applying the grease to the side wall of the guide pin. If improper operation causes grease to leak onto the brake disc, open the protective cover 901 to release the closure of the cleaning pad 9. The cleaning fluid in the storage cylinder 8 penetrates into the cleaning pad 9 through the seepage hole 801. The cleaning pad 9 absorbs the cleaning fluid. Then, lift the device and rub the cleaning pad 9 against the grease to clean it, thereby preventing the grease from spreading to a large area.

[0040] Problems with existing technology: The grease application position is off, with excess grease appearing at the edge of the application area, or grease being applied to the root of the guide pin or the inside of the dust cover. Excess grease may overflow during guide pin installation and inadvertently seep into the surface of the brake pads or brake discs.

[0041] Compared to existing application methods, this method ensures relatively even application while maintaining accurate application location, preventing excess grease from leaking onto the brake pads and thus ensuring effective braking force on the brake discs. The internal space of the lubrication cylinder can be adjusted according to the actual size of the guide pins, further ensuring accurate lubrication positioning and expanding the overall applicability of the device. If grease accidentally leaks onto the brake pads, it can be cleaned promptly, preventing it from spreading over a large area.

[0042] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, and are not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A coating detection mechanism for a brake caliper guide pin grease application device, characterized in that, The coating inspection mechanism includes: The testing platform (10) is fixed with a lifting frame (12), and the lifting frame (12) is provided with a rotatable fixing ring (13) for fixing the caliper guide pin grease applicator. The testing platform (10) is equipped with a caliper guide pin grease station (16) and a coating testing station (14). The position of the rotatable retaining ring (13) corresponds to the grease application station (16) of the caliper guide pin; The caliper guide pin grease station (16) is equipped with a first turntable that carries the brake disc. The brake disc rotates at a predetermined angle on the first turntable to adapt to the grease application of different guide pins on the brake disc. The coating inspection station (14) is equipped with a second turntable that carries the brake disc. The brake disc rotates at a constant speed on the second turntable. The machine vision sensor (15) performs image acquisition and processing on the coated caliper guide pin and transmits the processing results to the monitoring host (11).

2. The coating detection mechanism of the brake caliper guide pin grease coating device according to claim 1, characterized in that, The machine vision sensor (15) is an industrial camera; The monitoring host (11) judges whether there is missing coating or local lack of grease based on the images collected by the machine vision sensor (15), identifies the overflow of grease at the coating edge, excess grease at the root, and grease on the inside of the dust cover, and screens out the brake discs with unqualified coating. The machine vision sensor (15) can collect the identification information of the brake disc, and the monitoring host (11) saves the identification information and the detection results.

3. The coating detection mechanism of the brake caliper guide pin grease coating device according to claim 2, characterized in that, The caliper guide pin grease applicator includes: a lubrication cylinder (1) and a storage cylinder (2); Storage cylinder (2) is set on the upper outer wall of lubrication cylinder (1); storage cylinder (2) is used to store grease, and the lower part of storage cylinder (2) is connected to lubrication tank (1). The lubrication cylinder (1) has a groove (701) inside. The groove (701) is a cylindrical barrel with an inner diameter smaller than that of the lubrication cylinder (1). Multiple lubrication holes (6) are evenly opened on the groove (701). A lubrication groove (5) is formed between the lubrication cylinder (1) and the groove (701), and the lubrication groove (5) is used to hold the grease; a sponge pad (7) is also attached to the inner wall of the groove (701). The lower end of the lubrication cylinder (1) is provided with a guide pin for insertion; After the guide pin is inserted, the rotating fixing ring (13) rotates to drive the caliper guide pin grease applicator, lubricating the grease until it penetrates through the lubrication hole (6) to the sponge pad (7), thereby applying the grease to the side wall of the guide pin.

4. The coating detection mechanism of the brake caliper guide pin grease coating device according to claim 3, characterized in that, The upper end of the lubrication cylinder (1) is provided with an inner cavity space adjustment module, an inner cavity space adjustment module cylindrical limit block (4), an adjustment screw (401), the adjustment screw (401) passes through the through hole in the center of the upper cover of the lubrication cylinder (1), and the adjustment screw (401) is connected to the cylindrical limit block (4) through the axial threaded hole of the cylindrical limit block (4).

5. The coating detection mechanism of the brake caliper guide pin grease coating device according to claim 3, characterized in that, The lower part of the storage cylinder (2) is the liquid storage cylinder (8); A rectangular opening is provided on the side wall of the liquid storage cylinder (8). The rectangular opening blocks the cleaning liquid in the liquid storage cylinder (8) through the cleaning pad (9). The cleaning pad (9) is provided with multiple seepage holes (801). The cleaning liquid in the liquid storage cylinder (8) seeps into the cleaning pad (9) through the seepage holes (801). The cleaning pad (9) contacts the guide pin that needs to be cleaned for cleaning. The protective cap (901) is used to seal the liquid storage cylinder (8).

Images