Brake assembling method and system

Abstract

The invention relates to the technical field of brakes, in particular to a brake assembling method and system. Based on brake assembly instruction triggering, a first angle parameter of a driving assembly and a second angle parameter of a piston assembly are obtained; obtaining a preset adjustment rule based on the first angle parameter and the second angle parameter; the adjusting assembly adjusts the piston assembly to a target angle based on a preset adjusting rule; the conveying assembly moves the piston assembly adjusted to the target angle to a target assembling position; wherein the target assembling position comprises that the driving assembly is located in the installation allowance range of the piston assembly; the pressing assembly presses the driving assembly to the piston assembly. Therefore, the problem of assembly failure caused by alignment deviation of the piston of the brake and the motor under the assembly condition of physical space limitation is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of brake, in particular to a brake assembling method and system. BACKGROUND

[0002] In various mechanical brake systems, especially brakes, the torque transmission between the motor and the piston is usually achieved through spline connection, that is, the outer spline of the motor and the inner spline of the piston are engaged to achieve torque transmission. The traditional assembling process usually includes conveying, aligning and pressing, etc. The common way in the prior art is to direct through mechanical guide rails, vibration discs or simple visual sensors, and then directly press the outer spline of the motor into the inner spline of the piston by a linear actuator. However, this traditional method has significant limitations. In the assembly process of the motor and the piston of many brakes, the circumferential rotation of the motor relative to the piston is limited, and excessive rotation range will cause damage to the parts. In addition, the angular position of the motor and the piston in the initial state is random, and there is usually an alignment deviation, which leads to the failure of the assembly of the motor and the piston, resulting in damage to the parts due to collision, low product yield, and the inability to meet the requirements of the assembly success rate and stability of the automatic production line.

[0003] Therefore, there is an urgent need for an assembling technology that can achieve high-precision circumferential angle pre-alignment of the outer spline and the inner spline before assembly under the condition of physical space limitation. SUMMARY

[0004] To solve the problem of assembly failure caused by alignment deviation between the piston and the motor of the brake under the condition of physical space limitation, the present application provides a brake assembling method and system.

[0005] In a first aspect, the present application provides a brake assembling method, comprising:

[0006] Based on the brake assembling instruction trigger, the first angle parameter of the driving assembly and the second angle parameter of the piston assembly are obtained;

[0007] Based on the first angle parameter and the second angle parameter, a preset adjustment rule is obtained;

[0008] The adjustment assembly adjusts the piston assembly to a target angle based on the preset adjustment rule;

[0009] The conveying assembly moves the piston assembly adjusted to the target angle to a target assembly position; wherein the target assembly position includes that the driving assembly is located within the installation allowance range of the piston assembly;

[0010] The pressing assembly presses the driving assembly onto the piston assembly.

[0011] In some embodiments, the driving assembly comprises an output shaft and a second external spline arranged at one end of the output shaft; the second external spline is circumferentially provided with a plurality of spline teeth along a central axis of the second external spline; the piston assembly comprises a screw unit and a second internal spline arranged at one end of the screw unit; the second internal spline is circumferentially provided with a plurality of spline grooves along a central axis of the second internal spline, and the spline teeth are engaged with the spline grooves.

[0012] The first angle parameter comprises: the number of teeth, the module, the pressure angle of the second external spline, and the first included angle a of the symmetric center line of any spline tooth with the first direction; the first direction is the moving direction of the conveying assembly;

[0013] The second angle parameter comprises: the number of teeth, the module, the pressure angle of the second internal spline, and the second included angle b1 and the third included angle b2 of the symmetric center lines of the adjacent two spline grooves with the first direction, respectively.

[0014] In some embodiments, the preset adjustment rule comprises:

[0015] When the number of teeth, the module, and the pressure angle of the second external spline and the second internal spline are the same, and the first included angle a and the second included angle b1 are different; the piston assembly is adjusted to a target angle based on the first comparison rule, the second comparison rule, and the third comparison rule; the target angle is that the second included angle b1 is the same as the first included angle a.

[0016] In some embodiments, adjusting the piston assembly to the target angle based on the first comparison rule, the second comparison rule, and the third comparison rule comprises:

[0017] Based on the first comparison rule, when the second included angle b1 is greater than or equal to the third included angle b2, the adjusting assembly drives the piston assembly to adjust to the target angle in the second direction; wherein the second direction is arranged perpendicular to the first direction;

[0018] Based on the second comparison rule, when the second included angle b1 is less than the third included angle b2 and greater than a reference angle, the adjusting assembly drives the piston assembly to adjust to the target angle in the second direction;

[0019] Based on the third comparison rule, the third comparison rule is that when the second included angle b1 is less than the third included angle b2 and the reference angle, the adjusting assembly rotates the piston assembly to adjust to the target angle in the third direction; wherein the third direction is arranged perpendicular to the first direction and opposite to the second direction.

[0020] In some embodiments, the adjusting assembly adjusts the piston assembly to the target angle based on the preset adjustment rule further comprises:

[0021] The adjusting assembly stops for a preset time length after adjusting the piston assembly based on the preset adjustment rule.

[0022] In some embodiments, the piston assembly further comprises two mounting arms, the mounting arms are symmetrically sleeved on the one end of the screw unit close to the second inner spline along the second direction, and any mounting arm rotates by 180° along the central axis of the screw unit within the mounting allowance range.

[0023] In some embodiments, the pressing assembly comprises:

[0024] The pressing assembly drives the second outer spline to press into the second inner spline along the third direction; the pressing assembly drives the second outer spline to rotate within the mounting allowance range and drives the second outer spline to lock with the second inner spline.

[0025] In some embodiments, in the adjusting the piston assembly to the target angle based on the preset adjusting rule, the piston assembly is in an initial state before being adjusted to the target angle; wherein the initial state comprises: the one end of the transmission unit close to the driving assembly abuts against the screw unit along the second direction; the piston assembly further comprises the transmission unit, the transmission unit is sleeved on the screw unit and slides on the screw unit along the second direction or the third direction.

[0026] In the second aspect, the application provides a brake assembly system, which is applied to any one of the brake assembly methods in the first aspect, and the brake assembly system comprises:

[0027] A support;

[0028] A collection assembly arranged on the support; the collection assembly is used to collect the first angle parameter of the driving assembly;

[0029] An adjusting assembly arranged on the support; the adjusting assembly comprises a driving part, a vertical moving part and a driving head; the driving part is drivingly connected with the vertical moving part and the driving head; the vertical moving part is connected with the driving head; the driving head is used to adjust the angle of the piston assembly;

[0030] A conveying assembly comprising a conveying belt and a movable tray; the conveying belt is arranged on the support; the conveying belt is slidingly connected with the movable tray; the conveying belt drives the movable tray to slide to a target assembly position along the first direction; the piston assembly is movably connected to the movable tray;

[0031] A pressing assembly arranged on the support; the pressing assembly comprises a translation part, a vertical part, a rotating part and a clamping part; the translation part is arranged on the support; the vertical part is movably connected with the translation part; the vertical part is movably connected with the rotating part; the clamping part is movably connected with the rotating part; wherein the support, the pressing assembly and the piston assembly have a mounting allowance, and the driving assembly is within the range of the mounting allowance.

[0032] In some embodiments, the piston assembly comprises a piston cylinder, a first sealing ring, a second sealing ring, a piston unit, a screw unit and a transmission unit arranged in the piston cylinder.

[0033] The piston unit comprises a piston cylinder and a first internal spline arranged along the circumference of the piston cylinder; the screw rod unit comprises an integrally formed screw rod body, a rod engaging portion, an extension rod, and a second internal spline; the extension rod is connected perpendicularly to the rod engaging portion and partially protrudes from the piston cylinder in a second direction; the second internal spline is arranged at the end of the extension rod away from the rod engaging portion; the first sealing ring is arranged on the rod engaging portion and is sleeved around the circumference of the extension rod to seal the piston cylinder; the screw rod body is connected perpendicularly to the rod engaging portion and extends into the piston cylinder in a third direction; and the transmission unit is sleeved on the screw rod body;

[0034] The transmission unit comprises an integrally formed first external spline, a transmission ring, an internal screw portion, and a ring engaging portion; the internal screw portion is arranged in the transmission ring; the transmission ring is connected to the screw rod body through the internal screw portion and moves on the screw rod body in the second direction or the third direction; the first external spline is connected to the transmission ring in the third direction and is connected to the first internal spline; the ring engaging portion is arranged at the end of the transmission ring away from the first internal spline in the second direction and slides on the screw rod body in the second direction or the third direction; and the second sealing ring is sleeved around the circumference of the piston cylinder in the third direction.

[0035] To solve the problem that the piston and the motor of the brake are misaligned and cause assembly failure under the assembly condition of physical space limitation, the present application has the following advantages:

[0036] By obtaining the first angle parameter of the driving assembly and the second angle parameter of the piston assembly and generating a preset adjustment rule, the adjustment assembly accurately rotates the piston assembly to a target angle before compression, ensuring accurate alignment and assembly of the piston assembly and the driving assembly, which can significantly improve the assembly success rate and product quality; at the same time, the coordinated automatic process of the adjustment assembly, the conveying assembly, and the compression assembly can be based on a programmable program to achieve relatively fast and accurate alignment, greatly enhancing the stability and production efficiency of the assembly process; and by angle pre-adjustment, the driving assembly is always within the installation allowance range of the piston assembly, enhancing the adaptability to limited physical space and ensuring the assembly yield. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 A flowchart of a brake assembly method according to an embodiment is shown;

[0038] Figure 2 A front view of a brake assembly device according to an embodiment is shown;

[0039] Figure 3 A rear view of a brake assembly device according to an embodiment is shown;

[0040] Figure 4 A structural diagram of a piston assembly of a brake assembly device according to an embodiment is shown;

[0041] Figure 5 FIG. 1 shows a structural schematic diagram of a driving assembly of a brake assembly device according to an embodiment;

[0042] Figure 6 FIG. 2 shows a sectional view of a piston assembly of a brake assembly device according to an embodiment;

[0043] Figure 7 FIG. 3 shows an exploded schematic diagram of a brake assembly device according to an embodiment.

[0044] Reference Signs:

[0045] 10, piston assembly; 11, piston cylinder; 12, first sealing ring; 13, second sealing ring; 14, piston unit; 141, piston barrel; 142, first internal spline; 15, screw rod unit; 151, screw rod body; 152, rod engaging portion; 153, extension rod; 154, second internal spline; 16, transmission unit; 161, first external spline; 162, transmission ring; 163, internal screw portion; 164, ring engaging portion; 17, mounting arm; 20, driving assembly; 21, driving housing; 22, driving portion; 23, deceleration portion; 24, output unit; 241, output rod; 242, second external spline; 30, conveying assembly; 31, conveying belt; 32, movable tray; 40, adjusting assembly; 41, driving portion; 42, vertical shifting portion; 43, driving head; 50, collecting assembly; 60, pressing assembly; 61, horizontal shifting portion; 62, vertical portion; 63, rotating portion; 64, clamping portion; 70, support. DETAILED DESCRIPTION

[0046] The present disclosure will now be discussed with reference to a number of example embodiments. It should be appreciated that these embodiments are discussed solely for the purpose of enabling those with ordinary skill in the art to better understand and therefore practice the present disclosure, and are not intended to impose any limitations on the scope of the present disclosure.

[0047] As used herein, the term "includes" and its variants are to be read as open-ended terms that mean "including, but not limited to." The term "based on" is to be construed as "based at least in part on." The terms "one embodiment" and "an embodiment" are to be read as "at least one embodiment." The term "another embodiment" is to be read as "at least one other embodiment." The terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," "longitudinal," and similar terms are used for orientation or positional relationship based on the orientation or position as shown in the drawings. These terms are used merely for the purpose of description and are not meant to limit the indicated device, element, or component to a particular orientation or configuration, unless otherwise specified. Also, these terms are used in conjunction with the terms "abut," "adjoin," "attach," "connect," "couple," "engage," "fasten," "join," "fixate," "hold," "interconnect," "insert," "secure," "spaced apart," "support," "suspend," and the like, unless otherwise specified. These terms are intended to mean the particular orientation or connection as described, but also contemplate other possible orientations or connections unless otherwise specified. Additionally, the terms "mount," "set," "have," "comprise," "contain," "maintain," and the like, are to be construed in a broad sense and do not necessarily mean "only." Also, the terms "first," "second," and the like, are used merely as labels to distinguish one element from another but do not necessarily mean a relative importance or a quantity unless otherwise specified. The terms "plurality" and "a plurality" are intended to mean two or more, unless otherwise specified.

[0048] Brake is commonly used in vehicles, which refers to a component that generates a force (braking force) to hinder the movement or movement tendency of the vehicle. The brake generally includes a motor and a piston, and the external spline of the motor is engaged with the internal spline of the piston to realize torque transmission. The common way in the prior art is to preliminarily orient through a mechanical guide rail, a vibrating disc or a simple visual sensor, and then directly press the external spline of the motor into the internal spline of the piston by a linear actuator. However, the relative circumferential rotation range of the motor and the piston is limited during assembly, and the motor and the piston are usually misaligned, resulting in assembly failure.

[0049] Therefore, the present application provides a brake assembly method and system, which can solve the problem of misalignment between the piston and the motor of the brake under the assembly condition of physical space limitation, resulting in assembly failure.

[0050] Embodiment one:

[0051] Please refer to Figure 1 , Figure 2 and Figure 3 , the embodiment provides a brake assembly method, comprising the following steps S10-S50:

[0052] S10, based on brake assembly instruction trigger, obtaining the first angle parameter of the driving assembly 20, the second angle parameter of the piston assembly 10;

[0053] It can be understood that based on the brake assembly instruction trigger, the conveying assembly 30 moves the piston assembly 10 to be directly below the adjusting assembly 40, the adjusting assembly 40 is matched with the second inner spline 154 of the piston assembly 10 along the third direction Z, the adjusting assembly 40 obtains the second angle parameter and uploads it to the control system for subsequent assembly analysis, and the specific actual application is used as the criterion. At the same time, the collecting assembly 50 synchronously obtains the first angle parameter of the second outer spline 242 of the driving assembly 20 and uploads it to the control system, and the specific actual application is used as the criterion.

[0054] Specifically, please refer to Figure 4 and Figure 5 , the driving assembly 20 comprises an output shaft and a second outer spline 242 arranged at one end of the output shaft; the second outer spline 242 is provided with a plurality of spline teeth in the circumferential direction along the central axis of the second outer spline 242; the piston assembly 10 comprises a lead screw unit 15 and a second inner spline 154 arranged at one end of the lead screw unit 15; the second inner spline 154 is provided with a plurality of spline grooves in the circumferential direction along the central axis of the second inner spline 154, and the spline teeth and the spline grooves are engaged with each other, that is, the second outer spline 242 of the driving assembly 20 is rotationally engaged with the second inner spline 154 of the piston assembly 10 to realize torque transmission.

[0055] Specifically, the first angle parameter in step S10 comprises the number of teeth, the module, the pressure angle of the second outer spline 242 and the first included angle a of the symmetry center line of any spline shaft tooth with the first direction X, wherein the first direction X is the moving direction of the conveying assembly 30.

[0056] Specifically, the second angle parameter in step S10 comprises the number of teeth, the module, the pressure angle of the second inner spline 154 and the second included angle β1 and the third included angle β2 of the symmetry center lines of the adjacent two spline grooves with the first direction X.

[0057] S20, based on the first angle parameter and the second angle parameter, obtaining a preset adjustment rule.

[0058] Specifically, the preset adjustment rule comprises: when the tooth number, the module, and the pressure angle of the second outer spline 242 and the second inner spline 154 are the same and the first included angle a and the second included angle β1 are different; adjusting the piston assembly 10 to the target angle based on the first comparison rule, the second comparison rule, and the third comparison rule, and the target angle is that the second included angle β1 is the same as the first included angle a.

[0059] It can be understood that, before the second inner spline 154 and the second outer spline 242 are pre-aligned, ensuring that the tooth number, the module, and the pressure angle of the two are the same is a prerequisite for adjusting to the target angle. When the tooth number, the module, and the pressure angle are the same, it can be further compared whether the first included angle a and the second included angle β1 are the same. When the first included angle a and the second included angle β1 are the same, it indicates that the second inner spline 154 of the piston assembly 10 is already at the target angle, and there is no need to adjust the assembly 40 for further adjustment; when the first included angle a and the second included angle β1 are different, the adjustment assembly 40 will further adjust the piston assembly 10 to the target angle based on the first comparison rule, the second comparison rule, and the third comparison rule.

[0060] It can be understood that the first comparison rule is that when the second included angle β1 is greater than or equal to the third included angle β2, the piston assembly 10 rotates and moves along the second direction Y. The second comparison rule is that when the second included angle β1 is less than the third included angle β2 and greater than the reference angle, the piston assembly 10 rotates and moves along the second direction Y. The third comparison rule is that when the second included angle β1 is less than the third included angle β2 and the reference angle, the piston assembly 10 rotates and moves along the third direction Z, and the specific application is subject to the actual application. The reference angle is the critical value at which the transmission unit 16 and the screw rod unit 15 abut, and the specific value of the reference angle is not limited in the present application.

[0061] S30, the adjustment assembly 40 adjusts the piston assembly 10 to the target angle based on the preset adjustment rule.

[0062] Further, please refer to Figure 2 and Figure 5 In the process of adjusting the piston assembly 10 to the target angle by the adjustment assembly 40 based on the preset adjustment rule, the initial state before the piston assembly 10 is adjusted to the target angle is an initial state; wherein the initial state comprises: the end of the transmission unit 16 close to the driving assembly 20 abuts against the screw rod unit 15 along the second direction Y, so that any internal part of the piston assembly 10 is not easy to shake during movement, thereby ensuring the angle accuracy of the subsequent assembly of the second inner spline 154. The piston assembly 10 further comprises a transmission unit 16, which is sleeved on the screw rod unit 15, and converts the rotation of the screw rod unit 15 into the sliding of the transmission unit 16 along the second direction Y or the third direction Z on the screw rod unit 15.

[0063] It can be understood that the transmission unit 16 abuts against the screw rod unit 15, which can prevent the screw rod unit 15 from rotating with the movement of the conveying assembly 30, thereby avoiding the problem of the angle of the second internal spline 154 deviating. That is, during the adjustment of the piston assembly 10 to the target angle by the adjustment assembly 40, the direction of rotation of the second internal spline 154 or the screw rod unit 15 is such that the transmission unit 16 abuts against the screw rod unit 15 in the second direction Y. If the direction of rotation of the second internal spline 154 is such that the transmission unit 16 moves in the third direction Z, there is a gap between the transmission unit 16 and the screw rod unit 15, which can cause the target angle of the second internal spline 154 to be inaccurate, thereby causing the assembly to fail.

[0064] Further, based on the first comparison rule, when the second included angle β1 is greater than or equal to the third included angle β2, the adjustment assembly 40 drives the piston assembly 10 to adjust to the target angle in the second direction Y.

[0065] Further, based on the second comparison rule, when the second included angle β1 is less than the third included angle β2 and greater than the reference angle, the adjustment assembly 40 drives the piston assembly 10 to adjust to the target angle in the second direction Y.

[0066] It can be understood that the reference angle is the critical value at which the transmission unit 16 abuts against the screw rod unit 15. For example, the reference angle is 30°, the second included angle β1 is 40°, and the third included angle β2 is 50°. The adjustment assembly 40 drives the piston assembly 10 to adjust to the target angle in the second direction Y. The specific value of the reference angle is subject to actual application and is not limited in the present application.

[0067] Further, based on the third comparison rule, when the second included angle β1 is less than the third included angle β2 and the reference angle, the adjustment assembly 40 rotates the piston assembly 10 to adjust to the target angle in the third direction Z. The third direction Z is perpendicular to the first direction X and is arranged opposite to the second direction Y.

[0068] It can be understood that the reference angle is the critical value at which the transmission unit 16 abuts against the screw rod unit 15. For example, the reference angle is 40°, the second included angle β1 is 30°, and the third included angle β2 is 45°. The adjustment assembly 40 drives the piston assembly 10 to adjust to the target angle in the third direction Z. The specific value of the reference angle is subject to actual application and is not limited in the present application.

[0069] Further, the adjustment assembly 40 stops for a preset time length after adjusting the piston assembly 10 based on the preset adjustment rule.

[0070] It can be understood that the piston assembly 10 is provided with a first sealing ring 12 and a second sealing ring 13. The adjustment assembly 40 stops for a preset time length to ensure the stability of the target angle.

[0071] Exemplarily, the adjusting assembly 40 can further adjust the second inner spline 154 by a small angle based on the preset adjusting rule after adjusting the piston assembly 10, so as to ensure that the target angle of the first inner spline 142 after the rebound of the first sealing ring 12 and the second sealing ring 13 is still the angle that can be assembled with the driving assembly.

[0072] S40, the conveying assembly 30 moves the piston assembly 10 adjusted to the target angle to a target assembly position; wherein the target assembly position includes that the driving assembly 20 is located in the installation allowance range of the piston assembly 10.

[0073] Further, referring to Figure 5 , the piston assembly 10 further includes two installation arms 17, the installation arms 17 are symmetrically sleeved on one end of the screw rod unit 15 close to the second inner spline 154 along the second direction Y, and the rotation range of any installation arm 17 by 180° along the central axis of the screw rod unit 15 is the installation allowance range.

[0074] It can be understood that, referring to Figure 6 and Figure 7 , the driving assembly 20 includes a motor, and generally the motor is located on the right side of the driving assembly 20. During the installation of the piston assembly 10 and the driving assembly 20, the motor is easy to collide with the installation arm 17, resulting in damage of the parts and assembly failure. Therefore, it is necessary to ensure that the driving assembly 20 is located in the installation allowance range of the piston assembly 10, so that the driving assembly 20 can be rotated and locked in the installation allowance range.

[0075] S50, the pressing assembly 60 presses the driving assembly 20 to the piston assembly 10.

[0076] Further, the pressing assembly 60 drives the second outer spline 242 to press into the second inner spline 154 along the third direction Z; the pressing assembly 60 drives the second outer spline 242 to rotate in the installation allowance range and drives the second outer spline 242 to be locked with the second inner spline 154.

[0077] Embodiment two:

[0078] In this embodiment, a brake assembly system based on the above brake assembly method is provided, and the brake assembly system includes:

[0079] a bracket 70;

[0080] a collection assembly 50 arranged on the bracket 70; the collection assembly 50 includes a collection seat and a collector; the collection seat is arranged on one side of the bracket 70 close to the pressing assembly 60, and the collector is arranged on the collection seat and used for collecting the first angle parameter of the driving assembly 20.

[0081] The adjusting assembly 40 is arranged on the bracket 70; the adjusting assembly 40 comprises a driving part 4122, a vertical moving part 42 and a driving head 43; the driving part 4122 is drivingly connected with the vertical moving part 42 and the driving head 43; the vertical moving part 42 is connected with the driving head 43; the driving head 43 is used for adjusting the angle of the piston assembly 10; and the vertical moving part 42 drives the driving head 43 to move along the third direction Z.

[0082] The conveying assembly 30 comprises a conveying belt 31 and a movable tray 32; the conveying belt 31 is arranged on the bracket 70; the conveying belt 31 is slidingly connected with the movable tray 32; the conveying belt 31 drives the movable tray 32 to slide along the first direction X to a target assembly position; and the piston assembly 10 is movably connected with the movable tray 32; and the movable tray 32 can move along the second direction Y or the third direction Z on the conveying belt 31, so as to drive the piston assembly 10 to be quickly assembled with the adjusting assembly 40 or the pressing assembly 60, thereby improving the assembly efficiency.

[0083] The pressing assembly 60 is arranged on the bracket 70; the pressing assembly 60 comprises a translation part 61, a vertical part 62, a rotating part 63 and a clamping part 64; the translation part 61 is arranged on the bracket 70; the vertical part 62 is movably connected with the translation part 61; the vertical part 62 is movably connected with the rotating part 63; the clamping part 64 is movably connected with the rotating part 63; the bracket 70, the pressing assembly 60 and the piston assembly 10 have a mounting allowance; the driving assembly 20 is located in the mounting allowance, so as to avoid the driving assembly 20 from colliding with any one of the bracket 70, the pressing assembly 60 and the piston assembly 10 in the process of assembly, thereby avoiding the failure of the parts; and the adjusting assembly 40 and the pressing assembly 60 are arranged on the bracket 70 along the first direction X in sequence; the piston assembly 10 is corrected in sequence according to the adjusting assembly 40 and the pressing assembly 60; and the driving assembly 20 is assembled with the piston assembly 10 based on the pressing assembly 60.

[0084] Further, referring to Figures 5-7 , the piston assembly 10 comprises a piston cylinder 11, a first sealing ring 12, a second sealing ring 13, a piston unit 14, a screw rod unit 15 and a transmission unit 16 arranged in the piston cylinder 11;

[0085] The piston unit 14 comprises a piston barrel 141 and a first inner spline 142 arranged along the circumference of the piston barrel 141; the screw rod unit 15 comprises an integrally formed screw rod body 151, a rod engaging portion 152, an extension rod 153, and a second inner spline 154; the extension rod 153 is connected perpendicularly to the rod engaging portion 152 and partially protrudes from the piston cylinder body 11 along the second direction Y; the second inner spline 154 is arranged at the end of the extension rod 153 away from the rod engaging portion 152; the first sealing ring 12 is arranged on the rod engaging portion 152 and sleeved around the circumference of the extension rod 153 to seal the piston cylinder body 11; the screw rod body 151 is connected perpendicularly to the rod engaging portion 152 and extends into the piston barrel 141 along the third direction Z; and the transmission unit 16 is sleeved on the screw rod body 151.

[0086] The transmission unit 16 comprises an integrally formed first outer spline 161, a transmission ring 162, an inner screw portion 163, and a ring engaging portion 164; the inner screw portion 163 is arranged in the transmission ring 162; the transmission ring 162 is connected to the screw rod body 151 through the inner screw portion 163 and moves on the screw rod body 151 along the second direction Y or the third direction Z; the first outer spline 161 is connected to the transmission ring 162 along the third direction Z and connected to the first inner spline 142; the ring engaging portion 164 is arranged at the end of the transmission ring 162 away from the first inner spline 142 along the second direction Y and slides on the screw rod body 151 along the second direction Y or the third direction Z; and the second sealing ring 13 is sleeved around the circumference of the piston cylinder body 11 along the third direction Z.

[0087] It can be understood that the first sealing ring 12 and the second sealing ring 13 are both used to seal the piston assembly 10, and since the first sealing ring 12 and the second sealing ring 13 have resilience, the adjustment assembly 40 adjusts the piston assembly 10 based on the preset adjustment rule and stays for a preset time period to ensure the accuracy of the target angle.

[0088] Further, the driving assembly 20 comprises a driving shell 21 and a driving portion 4122 and a speed reduction portion 23 arranged in the driving shell 21, and the driving portion 4122 is drivingly connected to the speed reduction portion 23. The driving assembly 20 further comprises an output unit 24, which comprises an output rod 241 and a second outer spline 242, one end of the output rod 241 is connected to the driving portion 4122, and the other end is provided with the second outer spline 242. The driving assembly 20 further comprises a sealing ring arranged in the driving shell 21 for sealing the second inner spline 242 and the second inner spline 154.

[0089] It can be understood by those skilled in the art that the above embodiments are specific cases for implementing the present disclosure, and in actual application, various changes can be made in form and details without departing from the scope of the present disclosure.

Claims

1. A method of assembling a brake, characterized in that, The method comprises: triggering, based on the brake assembly instruction, to obtain a first angle parameter of a driving assembly and a second angle parameter of a piston assembly; obtaining a preset adjustment rule based on the first angle parameter and the second angle parameter; adjusting, by an adjustment assembly, the piston assembly to a target angle based on the preset adjustment rule; moving, by a conveying assembly, the piston assembly adjusted to the target angle to a target assembly position; wherein the target assembly position comprises that the driving assembly is located within a mounting allowance range of the piston assembly; pressing, by a pressing assembly, the driving assembly to the piston assembly.

2. The brake assembly method according to claim 1, wherein the driving assembly comprises an output shaft and a second external spline provided at one end of the output shaft; the second external spline is provided with a plurality of spline teeth along a central axis of the second external spline; the piston assembly comprises a screw rod unit and a second internal spline provided at one end of the screw rod unit; the second internal spline is provided with a plurality of spline grooves along a central axis of the second internal spline, and the spline teeth are engaged with the spline grooves; the first angle parameter comprises a tooth number, a module, a pressure angle of the second external spline, and a first included angle a of a symmetric center line of any spline tooth with a first direction; the first direction is a moving direction of the conveying assembly; the second angle parameter comprises a tooth number, a module, a pressure angle of the second internal spline, and a second included angle b1 and a third included angle b2 of symmetric center lines of two adjacent spline grooves with the first direction.

3. The brake assembly method according to claim 2, wherein the preset adjustment rule comprises: when the tooth number, the module, and the pressure angle of the second external spline and the second internal spline are the same, and the first included angle a and the second included angle b1 are different; adjusting the piston assembly to the target angle based on a first comparison rule, a second comparison rule, and a third comparison rule; the target angle is that the second included angle b1 is the same as the first included angle a.

4. The brake assembly method according to claim 3, wherein adjusting the piston assembly to the target angle based on the first comparison rule, the second comparison rule, and the third comparison rule comprises: based on the first comparison rule, when the second included angle b1 is greater than or equal to the third included angle b2, the adjustment assembly drives the piston assembly to adjust to the target angle along a second direction; wherein the second direction is perpendicular to the first direction; based on the second comparison rule, when the second included angle b1 is less than the third included angle b2 and greater than a reference angle, the adjustment assembly drives the piston assembly to adjust to the target angle along the second direction; based on the third comparison rule, when the second included angle b1 is less than the third included angle b2 and the reference angle, the adjustment assembly rotates the piston assembly to adjust to the target angle along a third direction; wherein the third direction is perpendicular to the first direction and opposite to the second direction.

5. The brake assembly method according to claim 4, wherein The adjusting component adjusts the piston component to a target angle based on the preset adjustment rule, and the adjusting further includes: The adjusting component adjusts the piston component based on the preset adjustment rule and stays for a preset time length.

6. The brake assembly method of claim 5, wherein, The piston component further includes two mounting arms, which are symmetrically sleeved on one end of the screw rod unit close to the second internal spline along the second direction, and any of the mounting arms rotates 180° along the central axis of the screw rod unit within the mounting allowance range.

7. The brake assembly method of claim 2, wherein, The pressing component presses the driving component onto the piston component, and the pressing further includes: The pressing component drives the second external spline to press into the second internal spline along the third direction; the pressing component drives the second external spline to rotate within the mounting allowance range and drives the second external spline to lock with the second internal spline.

8. The brake assembly method of claim 2, wherein, in the adjusting of the piston component to the target angle by the adjusting component based on the preset adjustment rule, the piston component is in an initial state before being adjusted to the target angle; the initial state includes that one end of the transmission unit close to the driving component abuts against the screw rod unit along the second direction; the piston component further includes the transmission unit, which is sleeved on the screw rod unit and slides on the screw rod unit along the second direction or the third direction. The brake assembly system is applied to the brake assembly method of any one of claims 1-8, and the brake assembly system includes:

9. A brake assembly system characterized by, a support; a collecting component arranged on the support, the collecting component being configured to collect a first angle parameter of a driving component; an adjusting component arranged on the support, the adjusting component including a driving part, a vertical moving part, and a driving head, the driving part being drivingly connected with the vertical moving part and the driving head, the vertical moving part being connected with the driving head, and the driving head being configured to adjust an angle of a piston component; a conveying component including a conveying belt and a movable tray, the conveying belt being arranged on the support, the conveying belt being slidingly connected with the movable tray, the conveying belt being configured to drive the movable tray to slide along a first direction to a target assembly position, and the piston component being movably connected with the movable tray; a pressing component arranged on the support, the pressing component including a translation part, a vertical part, a rotation part, and a clamping part, the translation part being arranged on the support, the vertical part being movably connected with the translation part, the vertical part being movably connected with the rotation part, and the clamping part being movably connected with the rotation part, wherein the support, the pressing component, and the piston component have a mounting allowance, and the driving component is located within the mounting allowance.

10. The brake assembly system of claim 9, wherein, the piston component includes a piston cylinder, a first sealing ring and a second sealing ring arranged in the piston cylinder, a piston unit, a screw rod unit, and a transmission unit. ​ The piston unit comprises a piston cylinder and a first internal spline arranged along the circumference of the piston cylinder; the screw rod unit comprises an integrally formed screw rod body, a rod engaging portion, an extension rod and a second internal spline; the extension rod is connected perpendicularly to the rod engaging portion and partially projects from the piston cylinder in a second direction; the second internal spline is arranged at the end of the extension rod away from the rod engaging portion; the first sealing ring is arranged on the rod engaging portion and is sleeved around the circumference of the extension rod to seal the piston cylinder; the screw rod body is connected perpendicularly to the rod engaging portion and extends into the piston cylinder in a third direction; the transmission unit is sleeved on the screw rod body; The transmission unit comprises an integrally formed first external spline, a transmission ring, an internal screw portion and a ring engaging portion; the internal screw portion is arranged in the transmission ring; the transmission ring is connected to the screw rod body through the internal screw portion and moves on the screw rod body in the second direction or the third direction; the first external spline is connected to the transmission ring in the third direction and is connected to the first internal spline; the ring engaging portion is arranged at the end of the transmission ring away from the first internal spline in the second direction and slides on the screw rod body in the second direction or the third direction; the second sealing ring is sleeved around the circumference of the piston cylinder in the third direction.

Images