Positioning and press-fitting device for lining of brake caliper

Abstract

The utility model discloses a brake caliper lining positioning press-fitting device which comprises a guide mechanism and a jacking mechanism, the guide mechanism comprises a guide rod, a guide air cylinder, a pneumatic pipeline connected with the guide air cylinder and an electromagnetic valve connected with the pneumatic pipeline, and the guide air cylinder drives the guide rod to extend downwards and be inserted into a lining mounting hole of a brake caliper; the jacking mechanism comprises a pressing rod used for jacking the lining. The lining is positioned by the guide rod in the process that the lining is jacked into the lining mounting hole by the pressing rod, after the lining is jacked to a set positioning position, the electromagnetic valve controls the guide air cylinder to cut off air, and after the air of the guide air cylinder is cut off, the guide mechanism only has a guide function and does not have downward pressure. The press-fitting precision is improved, the guide mechanism can be automatically adjusted before and after the bushing is press-fitted, and the guide stability and repeatability are ensured.

Description

Technical field

[0001] The utility model belongs to the technical field of automobile parts, and particularly relates to a positioning and pressing device for a brake caliper bushing. [Background Technology]

[0002] In automotive braking systems, the press-fitting process for the rear caliper bushing is a critical step that impacts brake performance. Traditional press-fitting methods can easily cause bushing misalignment, impacting the caliper's precision and service life. Furthermore, traditional press-fitting methods make it difficult to accurately determine the proper fit between the bushing and the caliper bore, increasing the risk of rework and quality issues. Therefore, developing a bushing press-fitting device that reduces misalignment, improves precision, and reduces costs is crucial.

[0003] Chinese invention patent publication number 117754262A discloses a floating press-fit device for a caliper bushing. The key technical aspects of the device are that it includes an upper press-fit mechanism for connecting and positioning with the upper portion of the caliper; and a lower press-fit mechanism for connecting with the top portion of the lower portion of the caliper and for installing the bushing into the bushing hole of the caliper. When both the upper and lower press-fit mechanisms are in contact with the caliper, the bushing on the lower press-fit mechanism is coaxial with the bushing hole. By configuring the upper and lower press-fit mechanisms, the position of the caliper can be adjusted so that the bushing is coaxial with the bushing hole, thereby reducing the risk of unqualified bushing installation. However, since the upper press-fit mechanism always exerts downward pressure during the press-fit process, this affects the press-fit accuracy. [Utility Model Content]

[0004] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a brake caliper bushing positioning and pressing device, so that the guide mechanism only has a guiding function without downward pressure, thereby reducing the impact on the pressing force.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] Brake caliper bushing positioning and pressing device, comprising:

[0007] A tooling base, wherein the tooling base is provided with a positioning structure for positioning the brake caliper;

[0008] A clamping mechanism, the clamping mechanism comprising a clamping component for pressing the brake caliper downward;

[0009] A guide mechanism, comprising a guide rod, a guide cylinder, a pneumatic line connected to the guide cylinder, and a solenoid valve connected to the pneumatic line, wherein the guide cylinder drives the guide rod to extend downward and insert into the bushing mounting hole of the brake caliper;

[0010] A lifting mechanism, the lifting mechanism comprising a pressure rod for lifting the bushing, the pressure rod being coaxially arranged with the guide rod;

[0011] The guide rod positions the bushing during the process of the pressure rod pushing the bushing into the bushing installation hole. After the bushing is lifted to the set positioning position, the solenoid valve controls the guide cylinder to cut off the air.

[0012] Preferably, the pressing component includes a top plate, a bottom plate and a support rod arranged between the top plate and the bottom plate, the guide cylinder is installed on the top plate, the bottom plate is provided with a guide hole, and the guide rod passes through the guide hole.

[0013] Preferably, a guide sleeve is installed in the guide hole.

[0014] Preferably, the clamping mechanism further comprises a clamping cylinder disposed above the clamping component, wherein the cylinder rod of the clamping cylinder is connected to the clamping component, and the clamping component is driven to rise and fall by the clamping cylinder.

[0015] Preferably, the outer circle of the lower end of the guide rod is provided with a guide cone surface.

[0016] Preferably, the lower outer circle of the guide rod is provided with an outer circle step.

[0017] Preferably, the lifting mechanism further includes a telescopic sleeve and a spring connected to the telescopic sleeve, the telescopic sleeve is disposed on the outside of the top of the pressure rod, the upper end of the spring abuts against the bottom of the telescopic sleeve, and the lower end is limited by a limiting step on the pressure rod.

[0018] Preferably, the lifting mechanism further includes a servo motor for driving the pressure rod to rise and fall.

[0019] Preferably, the lifting mechanism further comprises a pressure sensor, and the pressing force of the bushing is monitored in real time by the pressure sensor during the press-fitting process.

[0020] Preferably, the solenoid valve is a three-position five-way solenoid valve.

[0021] The utility model adopts the above technical solution, which has the following beneficial effects:

[0022] The brake caliper product is first placed on the tooling base and positioned using the positioning structure. The clamping mechanism activates and compresses the product. Then, a guide rod controlled by a guide cylinder extends and enters the product's bushing mounting hole, ensuring the bushing's precise positioning during press-fitting. Next, the lifting mechanism activates, lifting the bushing to the required position. The solenoid valve then de-energizes the guide cylinder, leaving the guide mechanism with only a guiding function and no downward pressure (reducing the impact on the press-fit force). The lifting mechanism then performs the precise press-fitting operation.

[0023] The coordination of the guide and jacking mechanisms ensures the coaxiality of the bushing and its mounting hole during press-fitting, improving press-fitting accuracy. Furthermore, during press-fitting, a solenoid valve controls the on / off flow of air to the guide cylinder, allowing the guide mechanism to automatically adjust before and after bushing press-fitting, ensuring guide stability and repeatability, further enhancing press-fitting accuracy.

[0024] In addition, the servo motor precisely controls the set pressure and stroke, making the press-fitting process more reliable. The entire press-fitting process can be monitored in real time through feedback from the pressure sensor and servo motor, ensuring press-fitting quality.

[0025] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Brief Description of the Drawings

[0026] The utility model is further described below with reference to the accompanying drawings:

[0027] Figure 1 Schematic diagram of the structure of the positioning and pressing device for the brake caliper bushing Figure 1 ;

[0028] Figure 2 Schematic diagram of the structure of the positioning and pressing device for the brake caliper bushing Figure 2 ;

[0029] Figure 3 Schematic diagram of the structure of the positioning and pressing device for the brake caliper bushing Figure 3 ;

[0030] Figure 4 Schematic diagram of the structure of the guide mechanism;

[0031] Figure 5 It is a structural diagram of the jacking mechanism;

[0032] Figure numerals: clamping mechanism 1, top plate 11, bottom plate 12, support rod 13, guide sleeve 14, guide mechanism 2, guide rod 21, guide cone 211, outer circular step 212, guide cylinder 22, lifting mechanism 3, pressure rod 31, limiting step 311, servo motor 32, telescopic sleeve 33, guide groove 331, spring 34, guide pin 35, tooling base 4, brake caliper 5, bushing 51. [Specific implementation method]

[0033] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0034] Those skilled in the art will appreciate that, unless there is any conflict, the features in the following embodiments and implementations may be combined with each other.

[0035] The terms used in this utility model are for the purpose of describing specific embodiments only and are not intended to limit the utility model. For example, the terms "upper," "lower," "inner," and "outer" used below to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are used only to facilitate the description of the utility model and simplify the description. They do not indicate or imply that the device or element referred to must have a specific orientation or be constructed or operated in a specific orientation. Therefore, they should not be understood as limiting the utility model.

[0036] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0037] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0038] Reference Figures 1 to 5 As shown, this embodiment provides a brake caliper bushing positioning and pressing device, which can make the guide mechanism only have a guiding function without downward pressure, reducing the impact on the pressing force. It includes:

[0039] A tooling base 4, wherein the tooling base 4 is provided with a positioning structure for positioning the brake caliper 5;

[0040] A clamping mechanism 1, comprising a clamping component for pressing the brake caliper 5 downward;

[0041] The guide mechanism 2 is connected to the pressing mechanism 1 and includes a guide rod 21, a guide cylinder 22, a pneumatic pipeline connected to the guide cylinder 22, and a solenoid valve connected to the pneumatic pipeline. The guide cylinder 22 drives the guide rod 21 to extend downward and insert into the bushing mounting hole;

[0042] A lifting mechanism 3, comprising a pressure rod 31 for lifting the bushing 51, wherein the pressure rod 31 is coaxially arranged with the guide rod 21;

[0043] When the pressing rod 31 pushes the bushing into the bushing mounting hole, the guide rod 21 positions the bushing 51. After the bushing is lifted to the set positioning position, the solenoid valve controls the guide cylinder to cut off the air.

[0044] The brake caliper product is first placed on the tooling base and positioned using the positioning structure. The clamping mechanism activates and compresses the product. Then, a guide rod controlled by a guide cylinder extends and enters the product's bushing mounting hole, ensuring the bushing's precise positioning during press-fitting. Next, the lifting mechanism activates, lifting the bushing to the required position. The solenoid valve then de-energizes the guide cylinder, leaving the guide mechanism with only a guiding function and no downward pressure (reducing the impact on the press-fit force). The lifting mechanism then performs the precise press-fitting operation.

[0045] The coordination of the guide and jacking mechanisms ensures the coaxiality of the bushing and its mounting hole during press-fitting, improving press-fitting accuracy. Furthermore, during press-fitting, a solenoid valve controls the on / off flow of air to the guide cylinder, allowing the guide mechanism to automatically adjust before and after bushing press-fitting, ensuring guide stability and repeatability, further enhancing press-fitting accuracy.

[0046] Specifically, the solenoid valve is a three-position, five-way solenoid valve. Among them, the structure of the tooling base 4 and the clamping mechanism 1 can directly adopt the existing technology. In this embodiment, the clamping component includes a top plate 11, a bottom plate 12 and a support rod 13 arranged between the top plate and the bottom plate, the guide cylinder 22 is installed on the top plate 11, and the bottom plate 12 is provided with a guide hole, and the guide rod 21 passes through the guide hole. A guide sleeve 14 is installed in the guide hole. The clamping mechanism also includes a clamping cylinder arranged above the clamping component, the cylinder rod of the clamping cylinder is connected to the clamping component, and the clamping component is driven to rise and fall by the clamping cylinder.

[0047] Furthermore, the lower outer circumference of the guide rod 21 is provided with a guide cone 211. The lower outer circumference of the guide rod 21 is provided with an outer circular step 212. The guide cone 211 guides the guide rod 21 downwardly into the bushing 51. After the bushing is pressed into the bushing mounting hole, the upper end of the bushing is still a certain distance away from the outer circular step 212, and no downward pressure is applied to the bushing.

[0048] like Figure 5As shown, the lifting mechanism 3 also includes a telescopic sleeve 33 and a spring 34 connected to the telescopic sleeve. The telescopic sleeve 33 is positioned outside the top of the pressure rod 31. The upper end of the spring 34 abuts the bottom of the telescopic sleeve, and the lower end is limited by a limit step 311 on the pressure rod. In addition, a guide groove 331 is provided on the side wall of the telescopic sleeve 33. A guide pin 35 is connected to the pressure rod. The guide pin 35 cooperates with the guide groove 331 to guide the telescopic sleeve 33 in vertical axial movement and prevent rotation.

[0049] Furthermore, the lifting mechanism 3 also includes a servo motor 32 that drives the pressure rod to rise and fall. The servo motor can monitor the displacement of the bushing in real time compared to other driving sources such as the cylinder. In addition, the lifting mechanism 3 also includes a pressure sensor, which monitors the pressing force of the bushing in real time during the press-fitting process. The servo motor is precisely controlled according to the set pressing force and stroke, making the press-fitting process more reliable. The entire press-fitting process monitors the pressing force and displacement of the bushing in real time through feedback from the pressure sensor and the servo motor to ensure the press-fitting quality.

[0050] The above-mentioned brake caliper bushing positioning and press-fitting device and its corresponding press-fitting method can achieve higher press-fitting accuracy and reliability through precise guidance and press-fitting control. The specific process flow is as follows:

[0051] 1. Positioning: First place the product on the tooling base for precise positioning.

[0052] 2. Pressing: The pressing mechanism is activated to press the product to ensure stability.

[0053] 3. Guide Mechanism Operation: The clamping mechanism incorporates a guide mechanism. A guide cylinder controls the vertical movement of the guide rod. A 5-way, 3-position solenoid valve controls the on / off flow of air pressure, as well as the extension and retraction of the guide rod. As the clamping mechanism presses downward, the guide rod extends and inserts into the bushing mounting hole. The 5-way, 3-position solenoid valve then switches to neutral, deflating the guide cylinder.

[0054] 4. Bushing Press-Fitting: The lifting mechanism begins operating, with the servo motor driving the press rod up and down. Once the bushing is lifted to the guide mechanism's height, it is precisely positioned by the guide rod before being press-fitted. During the press-fitting process, a pressure sensor records the bushing's pressure curve, and the servo motor determines the displacement based on the travel data, thereby determining the press-fit quality.

[0055] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art will understand that the utility model includes, but is not limited to, the contents described in the drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the utility model are intended to be included within the scope of the claims.

Claims

1. Brake caliper bushing positioning and pressing device, characterized in that: include: A tooling base, wherein the tooling base is provided with a positioning structure for positioning the brake caliper; A clamping mechanism, the clamping mechanism comprising a clamping component for pressing the brake caliper downward; A guide mechanism, comprising a guide rod, a guide cylinder, a pneumatic line connected to the guide cylinder, and a solenoid valve connected to the pneumatic line, wherein the guide cylinder drives the guide rod to extend downward and insert into the bushing mounting hole of the brake caliper; A lifting mechanism, the lifting mechanism comprising a pressure rod for lifting the bushing, the pressure rod being coaxially arranged with the guide rod; The guide rod positions the bushing during the process of the pressure rod pushing the bushing into the bushing installation hole. After the bushing is lifted to the set positioning position, the solenoid valve controls the guide cylinder to cut off the air.

2. The brake caliper bushing positioning and pressing device according to claim 1, characterized in that: The pressing component includes a top plate, a bottom plate and a support rod arranged between the top plate and the bottom plate. The guide cylinder is installed on the top plate. The bottom plate is provided with a guide hole, and the guide rod passes through the guide hole.

3. The brake caliper bushing positioning and pressing device according to claim 2, characterized in that: A guide sleeve is installed in the guide hole.

4. The brake caliper bushing positioning and pressing device according to claim 1, characterized in that: The pressing mechanism further includes a pressing cylinder disposed above the pressing component. The cylinder rod of the pressing cylinder is connected to the pressing component, and the pressing component is driven to rise and fall by the pressing cylinder.

5. The brake caliper bushing positioning and pressing device according to claim 1, characterized in that: The outer circle of the lower end of the guide rod is provided with a guide cone surface.

6. The brake caliper bushing positioning and pressing device according to claim 1, characterized in that: The lower outer circle of the guide rod is provided with an outer circle step.

7. The brake caliper bushing positioning and pressing device according to claim 1, characterized in that: The lifting mechanism also includes a telescopic sleeve and a spring connected to the telescopic sleeve. The telescopic sleeve is placed outside the top of the pressure rod. The upper end of the spring abuts against the bottom of the telescopic sleeve, and the lower end is limited by a limiting step on the pressure rod.

8. The brake caliper bushing positioning and pressing device according to claim 1, characterized in that: The lifting mechanism also includes a servo motor for driving the pressure rod to move up and down.

9. The brake caliper bushing positioning and pressing device according to claim 1, characterized in that: The lifting mechanism further comprises a pressure sensor, which monitors the pressing force of the bushing in real time during the press-fitting process.

10. The brake caliper bushing positioning and pressing device according to claim 1, characterized in that: The solenoid valve is a three-position five-way solenoid valve.

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