Brake disc mounting system and mounting method

Abstract

The brake disc mounting system comprises a first tool, a second tool and a third tool, in an assembly state, the first tool is arranged on the inner side of the second tool in a sleeving mode, the second tool is at least partially arranged on the inner side of the third tool in a sleeving mode, the first tool is arranged on the circumferential inner side of a disc hub in a sleeving mode, and the third tool is arranged on the circumferential inner side of the disc hub in a sleeving mode; the second tool is at least partially arranged in a radial gap between the disc hub and the space ring, the second tool is arranged to position and install the disc hub and the space ring to form clearance fit, and the third tool is arranged to feed bolt sets into bolt installation holes of the disc hub, the space ring and the disc body to form clearance fit. And the centering of the bolt mounting holes of the disc hub, the space ring and the disc body and the center of the bolt is realized, so that the fixation of the disc hub, the space ring and the disc body is realized. According to the mounting system, the mounting system comprising the multiple tools is adopted, positioning and mounting of the multiple parts of the brake disc are achieved, the structure with the self-centering function is achieved, mounting errors are reduced, and the assembling precision is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit braking, and in particular to a brake disc mounting system and a mounting method. Background Art

[0002] Brake discs are widely used in rail transit systems to achieve train parking brakes. The working principle is that the brake caliper pushes the friction plate to press the brake disc, thereby generating a braking torque. The shaft-mounted brake disc is generally composed of a brake disc body, a disc hub, a spacer and bolt fasteners. Among them, the inner ring of the disc body is evenly distributed with raised disc body connecting claws along the radial direction, and the outer circumference of the disc hub is provided with outer convex disc hub connecting claws corresponding to the disc body connecting claws along the radial direction. During assembly, the bolts pass through the disc hub connecting claws, the disc body connecting claws and the spacer in turn, and are finally locked with nuts.

[0003] When assembling the axle-mounted brake disc, the disc body and the disc hub must be accurately aligned with the aid of a tool. When the axle rotates at high speed, excessive residual imbalance will cause a huge moment of inertia, which will have a bad effect on the rotating parts, easily causing abnormal vibration of the axle and running parts, accelerating the wear of the axle box bearings at both ends of the axle, and shortening their service life.

[0004] At present, the existing technology mainly solves the above problems by optimizing the brake disc structure.

[0005] Patent CN105370772B discloses an axle-mounted brake disc for rail vehicles, which solves the problem of existing brake disc disc body and disc hub being misaligned and the braking torque being transmitted solely by friction. The disc body and the disc body have the same structure; the disc body is composed of a flange, a friction ring, and a heat dissipation rib; the flange is evenly distributed with through holes in the circumference; the heat dissipation ribs are evenly distributed along the circumference; the disc hub is evenly distributed with through holes in the circumference, and the number of through holes is the same as the number of through holes on the flange; the disc body and the disc body flange are evenly distributed with U-shaped grooves in the circumference, and after the disc body and the disc body are buckled, the circumferential fixation is achieved by pressing the pressure block into the U-shaped groove; the disc hub is evenly distributed with key grooves in the circumference, and the pressure block has through grooves, and the number of the pressure block and the U-shaped groove is the same as the number of key grooves on the disc hub; when the disc body and the disc body are installed on the disc hub, the through grooves on the pressure block cooperate with the positioning keys to achieve centering and circumferential positioning with the disc hub. The fastening bolts pass through the disc hub, the disc body, the disc body, the pressure ring, and the gasket in turn, and the axial fixation of the disc hub, the disc body, and the disc body is achieved by connecting the nut with the fastening bolt.

[0006] Patent CN105065515B discloses a high-speed train axle-mounted brake disc with a slider structure, and a slider is added. The slider can directly ensure that the disc body and the disc hub will not rotate relative to each other, and at the same time indirectly reduce the risk of bolt breakage. Specifically, it includes a disc body, a disc hub, a pressure plate and fasteners. The disc body and the disc hub are provided with teeth with equal circumference distribution, and each tooth has a mounting hole. The mounting holes on the disc body and the disc hub are fixed by fasteners, and also include a slider. The slider includes an upper end and a lower end. The upper end and the lower end are concentric stepped cylindrical shaft structures, and have a through hole penetrating the upper end and the lower end. The outer diameter of the upper end is smaller than the outer diameter of the lower end; the mounting hole includes a bolt hole and a slider hole; there are multiple slider holes, which are arranged at intervals; the upper end of the slider is inserted into the slider hole on the disc body; the lower end of the slider is inserted into the slider hole on the disc hub.

[0007] Then, currently, manual assembly is still used in the assembly process of brake discs, which has large installation errors, resulting in the dimensional tolerance and geometric tolerance of the inner hole of the entire brake disc after final assembly; and the matching clearance requirements between the various parts of the brake disc cannot be guaranteed. How to reduce installation errors, ensure installation accuracy, ensure that the brake disc can be automatically centered during installation, and develop automated and intelligent assembly tools and supporting systems are the key to further solving the above problems.

[0008] In view of the above technical problems, the present invention is specially introduced. Summary of the invention

[0009] The main purpose of the present invention is to provide a brake disc installation system and installation method, which can realize the positioning and installation of multiple parts of the brake disc, solve the problem that the traditional manual assembly method has scattered processes and needs to repeatedly lift and repeatedly detect the fitting clearance of parts according to the process sequence; ensure that the brake disc can be automatically centered during the installation process, reduce installation errors, and improve assembly accuracy; provide the possibility for automated assembly, reduce manual intervention, and improve production efficiency.

[0010] In order to achieve the above-mentioned objectives, the present invention provides a brake disc installation system, a brake disc installation system, used for positioning and installing a disc hub, a spacer and a disc body, comprising a first tooling, a second tooling and a third tooling. In the assembled state, the first tooling is sleeved on the inner side of the second tooling, and the second tooling is at least partially sleeved on the inner side of the third tooling. The first tooling is sleeved on the circumferential inner side of the disc hub, and the second tooling is at least partially arranged in the radial gap between the disc hub and the spacer. The second tooling is arranged to position and install the disc hub and the spacer to form a clearance fit. The third tooling is arranged to send the bolt group into the bolt mounting holes of the disc hub, the spacer and the disc body, and realize the alignment of the bolt mounting holes of the disc hub, the spacer and the disc body with the center of the bolts, thereby realizing the fixation of the disc hub, the spacer and the disc body.

[0011] Preferably, the second tooling includes a second annular disk and a plurality of first positioning protrusions radially and circumferentially arranged around the second annular disk, the plurality of first positioning protrusions are spaced apart, and a space for accommodating the connecting claws of the disk hub is formed between two adjacent first positioning protrusions.

[0012] Preferably, the second tooling also includes a second positioning protrusion, which is arranged in the axial direction of the second annular disk and evenly distributed along the circumferential direction, and is arranged corresponding to the connecting claw of the disk hub. The second positioning protrusion is detachably connected to the first positioning protrusion 2.

[0013] Preferably, the second positioning protrusion has a first surface abutting against the outer diameter surface of the flange of the hub, and a second surface abutting against the inner surface of the spacer.

[0014] Preferably, the third tooling includes a third annular disk and a plurality of bolt head mounting assemblies radially extending around the third annular disk, and the bolt head mounting assemblies are arranged corresponding to the bolt mounting holes.

[0015] Preferably, the third tooling further comprises a plurality of positioning blocks, and the plurality of positioning blocks are distributed circumferentially along the radially outer extension of the third annular disk, and adjacent positioning blocks embrace the bolt head mounting assembly.

[0016] Preferably, in the assembled state, the second annular disk is located in the inner space formed by the third tooling.

[0017] Preferably, the positioning block is provided with a first element hole, and a magnetic element is provided in the first element hole.

[0018] Preferably, the positioning block is further provided with a second component hole, and the second component hole accommodates the adjusting screw.

[0019] Preferably, the first tooling is provided with a laser positioning component to achieve radial and circumferential positioning of the hub.

[0020] On the other hand, the present application provides a brake disc installation method, using the above-mentioned assembly tooling system, comprising the following steps:

[0021] A brake disc installation method, using the assembly tooling system of any one of claims 1 to 4, characterized in that it comprises the following steps:

[0022] Step S1, installing the disc hub to the first fixture, and using a laser positioning member to realize radial and circumferential positioning and alignment of the disc hub;

[0023] Step S2, installing the slider to the slider installation hole of the disk hub;

[0024] Step S3, transferring the disc body to the upper part of the disc hub and the slider, dropping the slider into the slider installation groove provided on the disc body, and realizing the positioning and installation of the disc body and the disc hub;

[0025] Step S4, inserting a positioning key into the positioning hole provided on the hub, placing the spacer on the outer circumference of the hub, installing the positioning key into the positioning key installation groove provided on the spacer, completing the initial positioning of the spacer and the hub, and completing the positioning installation of the spacer and the hub with the help of the second tooling;

[0026] Step S5, moving the third tooling to deliver the bolt assembly to the bolt mounting holes of the disc hub, the spacer and the disc body.

[0027] Preferably, step S2 further comprises adjusting the position and direction of the slider in a laser scanning-assisted manner.

[0028] Preferably, step S5 further comprises adjusting an adjusting screw in the hole of the second element to adjust the gap between the spacer sleeve and the disc hub.

[0029] The installation system and method proposed by the present invention achieve the following technical effects:

[0030] 1. Through the superposition and installation of multiple tooling, the positioning and installation of multiple parts of the brake disc are realized. The structure with self-centering function solves the problem of traditional assembly, scattered processes, and repeated lifting and repeated testing according to the assembly sequence; it ensures that the brake disc can be automatically centered during the installation process, reduces installation errors, and improves assembly accuracy; it provides the possibility for automated assembly, reduces manual intervention, and improves production efficiency.

[0031] 2. The disc hub and the spacer are installed by the second tooling to ensure the clearance fit between the disc hub and the spacer; a detachable second positioning protrusion is adopted, and the second positioning protrusion can be replaced according to the clearance requirement between the disc hub and the spacer, thereby increasing the adaptability of the tooling.

[0032] 3. Multiple bolts are installed synchronously through the third tooling to ensure installation accuracy, and the gap between the spacer and the disc hub is ensured by adjusting the screws in the positioning block.

[0033] 4. The assembly process is realized with the assistance of laser scanning, and the slider, disc hub and spacer are precisely positioned. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0035] Figure 1 A schematic diagram of the partial structure of the connection between the disc hub, the spacer ring and the disc body in a brake disc in one embodiment of the present application is shown;

[0036] Figure 2 A schematic diagram showing the positional relationship between the disc hub and the spacer sleeve in one embodiment of the present application is shown;

[0037] Figure 3 A schematic diagram showing the positional relationship between the hub and the spacer ring in one embodiment of the present application is shown;

[0038] Figure 4 A schematic diagram of a first tooling structure in one embodiment of the present application is shown;

[0039] Figure 5 A schematic diagram of the overall structure of a second tooling in one embodiment of the present application is shown;

[0040] Figure 6 A schematic diagram of a partial structure of a second tooling in one embodiment of the present application is shown;

[0041] Figure 7 A schematic diagram of a third tooling structure in one embodiment of the present application is shown;

[0042] Figure 8 A schematic diagram of a third tooling structure in one embodiment of the present application is shown;

[0043] Fig. 9 A schematic diagram of the structure of a bolt head mounting assembly in a third tooling in one embodiment of the present application is shown;

[0044] Fig.10 A schematic diagram of the structure of a positioning block in a third tooling in an embodiment of the present application is shown;

[0045] Fig.11 A schematic diagram showing the distribution of three toolings in an assembled state in one embodiment of the present application is shown;

[0046] Fig.12 A flow chart of an installation method in one embodiment of the present application is shown.

[0047] The above drawings include the following reference numerals:

[0048] 10. disk hub; 20. disk body; 30. spacer ring; 40. spacer sleeve; 11. connecting claw; 12. slider; 13. positioning hole; 14. stopper;

[0049] 100, first tooling; 200, second tooling; 300, third tooling; 110, first annular disk;

[0050] 210, second annular disk; 220, first positioning protrusion; 240, second positioning protrusion; 242, first surface; 244, second surface;

[0051] 310, third annular disk; 320, bolt head mounting assembly; 340, positioning block; 342, first component hole; 344, second component hole; 330, slot body. DETAILED DESCRIPTION

[0052] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0053] The present invention is further described in detail below in conjunction with specific embodiments, and these embodiments cannot be understood as limiting the scope of protection claimed by the present invention. The term "including" when used indicates the existence of a feature, but does not exclude the existence or addition of one or more other features; the orientation or position relationship indicated by the terms "lateral", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; in addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0054] In the description, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0055] Embodiment 1:

[0056] The present application provides a brake disc installation system, which is particularly suitable for positioning and installing various parts such as a disc hub, a spacer ring and a disc body in a shaft-mounted brake disc.

[0057] First, the various parts of the brake disc are described. The brake disc includes a disc hub 10, a spacer 30 and a disc body 20. Figure 1 As shown, a plurality of connecting claws are provided in the radial direction of the inner circumferential wall of the disc body 20, and disc hub connecting claws corresponding to the connecting claws of the disc body 20 are provided in the radial direction of the outer circumference of the disc hub 10. Bolt holes are provided on the disc body connecting claws and the disc hub connecting claws. The bolts pass through the connecting claws on the disc hub and the disc body and the bolt holes on the spacer in sequence to realize the fixed assembly of the disc hub 10, the spacer 30 and the disc body 20. In addition, the brake disc also includes a spacer sleeve 40 and a slider 12. In the assembled state, the spacer sleeve 40 is sleeved on the bolt, and the two ends of the spacer sleeve 40 respectively abut the disc hub 10 and the bolt head; the slider 12 is located in the countersunk hole designed on some of the bolt holes on the disc hub connecting claws, the bottom of the disc body 20 abuts against the slider 12, and the other end of the slider 12 abuts against the disc hub 10.

[0058] In the actual installation process, the matching clearance between the control hub 10 and the spacer 30 is required to be controlled, and a high coaxiality requirement is required to ensure the uniformity of the clearance. Figure 2 As shown, it is required to control the clearance between the spacer 40 and the stopper 14 of the hub 10 in the radial direction of the hub, and the size and uniformity of the clearance are also required to be high. At the same time, each spacer 40 is in a separate component state, and each spacer 40 cannot be positioned and constrained as a whole. The values ​​of the clearance between the hub 10 and the spacer 30 and the clearance between the spacer 40 and the stopper 14 of the hub 10 are not specifically limited here. In addition, each bolt is in a separate component state, and the bolt head cannot be positioned and constrained as a whole.

[0059] Based on the above-mentioned positioning and matching restrictions in the installation of the brake disc, the present application designs a brake disc installation system to achieve clearance matching between the various parts of the brake disc, and to achieve the overall installation of multiple spacers and bolts to ensure installation accuracy.

[0060] Specifically, the brake disc installation system includes a first tool 100, a second tool 200 and a third tool 300. The first tool 100 is sleeved on the inner side of the disc hub 10 to achieve the positioning of the disc hub. Figure 4 As shown, the first tool 100 includes a first annular disk 110 , on which a laser positioning member is provided to achieve radial and circumferential positioning of the disk hub.

[0061] Figure 3 The positional relationship between the hub 10 and the spacer 30 is shown. The second tool 200 is at least partially disposed in the radial gap between the hub 10 and the spacer 30. The second tool 200 is configured to achieve positioning and installation between the hub 10 and the spacer 30 to form a clearance fit. The third tool 300 is configured to insert the bolt group into the bolt installation holes of the hub 10, the spacer 30 and the disc body 20 to achieve the fixation of the hub 10, the spacer 30 and the disc body 20, so that multiple bolts are synchronously positioned and installed.

[0062] Specifically, if Figure 5 and 6As shown, the second tool 200 includes a second annular disk 210 and a plurality of first positioning protrusions 220 radially extending and circumferentially arranged around the second annular disk 210. The plurality of first positioning protrusions 220 are arranged at intervals, and a space for accommodating the connecting claws 11 of the disk hub 10 is formed between two adjacent first positioning protrusions 220. In addition, the second tool 200 also includes a second positioning protrusion 240. The second positioning protrusion 240 is detachably connected to the first positioning protrusion 220 along the axial direction of the second annular disk 210. The second positioning protrusion 240 is evenly distributed along the circumference of the second annular disk 210 and is arranged corresponding to the connecting claws 11 of the disk hub 10. The clearance fit between the disk hub and the spacer is ensured by the second tool; the second positioning protrusion is detachable, and the second positioning protrusion can be replaced according to the clearance requirements of the disk hub and the spacer, thereby increasing the adaptability of the tool; at the same time, when the second tool is damaged during use or the clearance is too large due to wear and other reasons and needs to be replaced, only the second positioning protrusion can be replaced, thereby reducing the process complexity, improving the replacement efficiency, and reducing the use cost. In addition, the second positioning protrusion 240 has a first surface 242 that abuts against the outer diameter surface of the flange of the hub 10 , and a second surface 244 that abuts against the inner surface of the spacer 30 .

[0063] Combination Figure 7 and Figure 8 As shown, the third tool 300 includes a third annular disk 310 and a plurality of slots 330 radially extending around the third annular disk 310, and the slots 330 contain bolt head mounting assemblies 320. The bolt head mounting assemblies 320 are arranged corresponding to the bolt mounting holes and are used for clamping and releasing the bolt heads. In this way, a plurality of bolt positioning parts are formed on the third tool 300, so that the positioning and installation of the bolts can be realized at the same time.

[0064] like Fig. 9 As shown, the structure of the bolt head mounting assembly in which the bolt head is placed is a regular hexagonal structure as a whole, which matches the size of the bolt head, and is provided with a notch on one side, and is a split structure. The notch gap of the split structure is used to realize the clamping and loosening of the bolt head mounting assembly. The bolt head is opened in the released state, clamped and locked during the tightening process, and released after tightening. The third tooling is used to realize the synchronous installation of multiple bolts, ensuring the installation accuracy; the positioning block is set to adjust the gap between the spacer and the disc hub; the third tooling is designed with a floating, retractable split bolt head mounting assembly, which uses the split notch structure to realize the rapid placement of the bolt head during the assembly process and the automatic loosening and clamping during the tightening process, solving the problem of manually tightening the bolt head with a sleeve in the manual assembly method to realize the automation of the bolt tightening process.

[0065] In addition, in order to ensure the gap between the spacer 40 and the hub 10, a plurality of positioning blocks 340 are also provided in the third tooling 300 in the present application, such as Figure 7As shown, a plurality of positioning blocks 340 are distributed radially outwardly and circumferentially along the third annular disk 310 , and adjacent positioning blocks 340 embrace the bolt head mounting assembly 320 .

[0066] like Fig.10 As shown, the positioning block 340 is a polygonal strip structure. The positioning block 340 is provided with a first element hole 342, and a magnetic element is provided inside the side wall of the first element hole 342, which can be a permanent magnetic cylindrical magnet block. In addition, the positioning block 340 is also provided with a second element hole 344, and the second element hole 344 accommodates an adjustment screw. By screwing the adjustment screw in and out, the attraction of the magnetic element to the spacer 40 is controlled. The two magnetic elements arranged around the spacer 40 can adjust the gap between the spacer 40 and the disk hub 10, as shown in FIG. Figure 7 shown.

[0067] In the assembled state, Fig.11 As shown, the first tool 100 is sleeved on the inner side of the second tool 200, and the second tool 200 is at least partially sleeved on the inner side of the third tool 300. The second annular disc 210 is located in the inner space formed by the third tool 300. The assembly state mentioned here refers specifically to the final state of the installation of each part in the brake disc, rather than the state in the middle of the installation process.

[0068] In addition, if Figure 2 As shown, the outer diameter surface of the flange of the hub 10 is provided with a positioning hole 13, a positioning key (not shown in the figure) is inserted into the positioning hole 13, and a keyway (not shown in the figure) matched with the positioning key is provided on the spacer 30. In this way, the positioning installation between the spacer and the hub is realized.

[0069] On the other hand, the present application also proposes a brake disc installation method using the above-mentioned installation system, which includes the following steps: Step S1, installing the disc hub 10 to the first tooling 100, and using a laser positioning part to realize radial and circumferential positioning and alignment of the disc hub 10; Step S2, installing the slider 12 to the slider mounting hole of the disc hub 10; Step S3, transferring the disc body 20 to the upper part of the disc hub 10 and the slider 12, and dropping the slider 12 into the slider mounting groove provided on the disc body 20 to realize the positioning and installation of the disc body 20 and the disc hub 10; Step S4, inserting a positioning key into the positioning hole provided on the disc hub 10, placing the spacer 30 on the outer circle of the disc hub 10, and installing the positioning key into the positioning key mounting groove provided on the spacer 30 to complete the initial positioning of the spacer and the disc hub, and using the second tooling 200 to complete the positioning and installation of the spacer 30 and the disc hub 10; Step S5, moving the third tooling 300, and sending the bolt group to the bolt mounting holes of the disc hub 10, the spacer 30 and the disc body 20.

[0070] The step S2 further comprises adjusting the position and direction of the slider 12 by means of laser scanning assistance. The step S5 further comprises adjusting the adjusting screw in the second element hole 344 to adjust the gap between the spacer and the hub 10 .

[0071] The specific installation steps are described below using a specific embodiment.

[0072] Step 1, Alignment of the hub and slider: Transfer the hub to the alignment station, and use the first tooling to make the hub center concentric with the first tooling center, providing an initial reference center for subsequent positioning. Then install the slider in the slider installation hole of the hub.

[0073] The installation position and direction of the slider are adjusted with the aid of laser scanning, so that the slider is aligned. Then the workbench is lowered, driving the disk hub to descend.

[0074] Step 2, assembly of the disc body and the disc hub: transfer the disc body in step 1 to the disc body and disc hub assembly station. The workbench rises, driving the disc hub to rise. Fit the disc hub mounting surface with the disc body mounting surface, and install the slider that has been positioned and aligned in step 2 into the keyway of the disc body that has been circumferentially aligned in step 1, thereby completing the positioning and installation of the disc body and the disc hub.

[0075] Step 3, installation of the spacer and the hub: insert the positioning key into the positioning hole on the hub, place the spacer on the outer circle of the hub, and install the positioning key into the positioning key installation groove on the spacer to complete the initial positioning of the spacer and the hub.

[0076] Then, the second tooling is raised, passing through the installation gap between the outer circle connecting claw of the disk hub and the inner hole of the spacer ring, and the second positioning protrusion of the second tooling is used to realize the centering positioning and gap adjustment of the spacer ring and the disk hub, thereby completing the positioning and installation of the spacer ring.

[0077] Step 4, bolt installation: lift the third tool, release the bolt head installation assembly, put the bolt in the bolt head installation assembly; then tighten the bolt head installation assembly to lock the bolt head. Put in the bolt head end connector such as the spacer. Adjust the adjustment screw in the second component hole to adjust the gap between the spacer and the disc hub.

[0078] The third tooling is lowered, driving the bolt and the spacer sleeve inserted therein to descend together.

[0079] The disc body, disc hub, slider and spacer that have been assembled and ready for use in step 3 are transferred to the assembly station. The third tool is raised, driving the bolts to pass through the bolt installation holes, and then the nut end connectors such as gaskets, spacers and disc springs are installed and the nuts are tightened.

[0080] In summary, the installation system and method proposed in this embodiment achieve the following technical effects:

[0081] 1. By adopting the method of stacking and installing multiple tooling, the positioning and installation of multiple parts of the brake disc are realized. The structure with self-centering function solves the problems of traditional assembly, scattered processes, and repeated lifting and repeated testing according to the assembly sequence; it ensures that the brake disc can be automatically centered during the installation process, reduces installation errors, and improves assembly accuracy; it provides the possibility for automated assembly, reduces manual intervention, and improves production efficiency.

[0082] 2. The disc hub and the spacer are installed by the second tooling to ensure the clearance fit between the disc hub and the spacer; a detachable second positioning protrusion is adopted, and the second positioning protrusion can be replaced according to the clearance requirement between the disc hub and the spacer, thereby increasing the adaptability of the tooling.

[0083] 3. Multiple bolts are installed synchronously through the third tooling to ensure installation accuracy, and the gap between the spacer and the disc hub is ensured by adjusting the screws in the positioning block.

[0084] 4. With the help of laser scanning, the slider, hub and spacer can be accurately positioned during the assembly process.

[0085] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A brake disc installation system for positioning and installing a disc hub (10), a spacer (30) and a disc body (20). It is characterized in that The invention comprises a first tool (100), a second tool (200) and a third tool (300); in an assembled state, the first tool (100) is sleeved on the inner side of the second tool (200), and the second tool (200) is at least partially sleeved on the inner side of the third tool (300). The first tooling (100) is sleeved on the inner side of the hub (10) in the circumferential direction. The second tool (200) is at least partially disposed in the radial gap between the disk hub (10) and the spacer (30), and the second tool (200) is configured to position and install the disk hub (10) and the spacer (30) to form a clearance fit. The third tooling (300) is configured to insert the bolt assembly into the bolt mounting holes of the disk hub (10), the spacer (30) and the disk body (20), and to align the bolt mounting holes of the disk hub (10), the spacer (30) and the disk body (20) with the center of the bolts, thereby fixing the disk hub (10), the spacer (30) and the disk body (20).

2. The mounting system according to claim 1, characterized in that: The second tooling (200) comprises a second annular disk (210) and a plurality of first positioning protrusions (220) radially and circumferentially arranged around the second annular disk (210), wherein the plurality of first positioning protrusions (220) are spaced apart and a space for accommodating the connecting claws (11) of the disk hub (10) is formed between two adjacent first positioning protrusions (220).

3. The mounting system according to claim 2, characterized in that: The second tooling (200) further comprises a second positioning protrusion (240), which is arranged in the axial direction of the second annular disk (210) and evenly distributed in the circumferential direction, and is arranged corresponding to the connecting claw (11) of the disk hub (10), and the second positioning protrusion (240) is detachably connected to the first positioning protrusion (220).

4. The mounting system according to claim 3, characterized in that: The second positioning protrusion (240) has a first surface (242) abutting against the outer diameter surface of the flange of the hub (10), and a second surface (244) abutting against the inner surface of the spacer (30).

5. The mounting system according to claim 3 or 4, characterized in that: The third tool (300) comprises a third annular disk (310) and a plurality of bolt head mounting assemblies (320) radially extending around the third annular disk (310), wherein the bolt head mounting assemblies (320) are arranged corresponding to the bolt mounting holes.

6. The mounting system according to claim 5, characterized in that: The third tooling (300) further comprises a plurality of positioning blocks (340), wherein the plurality of positioning blocks (340) are distributed circumferentially along the radially outer extension of the third annular disk (310), and adjacent positioning blocks (340) embrace the bolt head mounting assembly (320).

7. The mounting system according to claim 6, characterized in that: In the assembled state, the second annular disk (210) is located in the inner space formed by the third tooling (300).

8. The mounting system according to claim 6 or 7, characterized in that: The positioning block (340) is provided with a first element hole (342), and a magnetic element is provided in the first element hole (342).

9. The mounting system according to claim 8, characterized in that The positioning block (340) is also provided with a second element hole (344), and the second element hole (344) accommodates an adjusting screw.

10. The mounting system according to any one of claims 1 to 4, characterized in that: The first tool (100) is provided with a laser positioning component to achieve radial and circumferential positioning of the hub (10).

11. A brake disc installation method, using the assembly tooling system according to any one of claims 1 to 10, characterized in that: The following steps are involved: Step S1, installing the disc hub (10) on the first tooling (100), and using a laser positioning member to achieve radial and circumferential positioning and alignment of the disc hub (10); Step S2, installing the slider (12) to the slider installation hole of the disk hub (10); Step S3, transferring the disc body (20) to the upper part of the disc hub (10) and the slider (12), and dropping the slider (12) into the slider installation groove provided on the disc body (20), so as to realize the positioning installation of the disc body (20) and the disc hub (10); Step S4, inserting a positioning key into the positioning hole provided on the disk hub (10), placing the spacer (30) on the outer circumference of the disk hub (10), installing the positioning key into the positioning key installation groove provided on the spacer (30), completing the initial positioning of the spacer (30) and the disk hub (10), and completing the positioning installation of the spacer (30) and the disk hub (10) with the help of the second tooling (200); Step S5, moving the third tooling (300) to deliver the bolt assembly to the bolt mounting holes of the disc hub (10), the spacer (30) and the disc body (20).

12. The installation method according to claim 11, characterized in that: The step S2 also includes adjusting the position and direction of the slider (12) in a laser scanning-assisted manner.

13. The installation method according to claim 11, characterized in that: Step S5 also includes adjusting an adjusting screw in the second element hole (344) to adjust the gap between the spacer (40) and the disk hub (10).

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