Brake disc screw automatic locking equipment

By integrating automatic bolt feeding, visual precision positioning, and high-precision tightening technologies, the problems of low efficiency, unstable quality, and large footprint caused by the dispersed equipment in existing technologies have been solved, realizing full-process automation and efficient production, and adapting to modern production lines.

CN121756064APending Publication Date: 2026-03-31CHANGZHOU BOYAN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-06
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The lack of highly integrated and intelligent automatic brake disc screw fastening equipment in the current technology results in low production efficiency, unstable quality, and large equipment footprint, making it difficult to adapt to modern high-speed automated production lines.

Method used

An automatic bolt fastening device for brake discs was designed, which integrates functions such as automatic bolt feeding, visual precision positioning, multi-axis synchronous tightening, real-time torque/angle monitoring and quality judgment into one device. It adopts a machine vision system to accurately identify the position of the blind hole in the thread, and uses a high-precision servo tightening shaft and a closed-loop control system to achieve unmanned and automated operation throughout the entire process.

Benefits of technology

It has achieved full automation from material feeding to qualified product output, stabilized production cycle, improved tightening consistency, reduced equipment footprint and operating costs, and enhanced the flexibility and stability of the production line.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of hub brake disc locking, and particularly relates to brake disc screw automatic locking equipment which comprises a rack and a shell cover installed at the top of the rack, and the rack is provided with a rotary disc mechanism, a disc supplying mechanism, a disc carrying mechanism, a pneumatic screw feeding machine, a hole site adjusting mechanism, a screw locking mechanism, a discharging mechanism and a visual camera. The full-process operation from bolt supply and precise positioning to high-precision synchronous tightening and quality detection can be continuously and smoothly completed in one device. The problems that in the prior art, due to dispersed procedures and single equipment function, the production takt is slow, and the cooperation efficiency is low are solved, the consistency of the production efficiency and the locking quality is remarkably improved, meanwhile, the flexibility level of a production line is greatly improved through the equipment, and the production cost is reduced. And the complex requirement for large-scale and high-quality manufacturing of modern battery cars can be flexibly met, and key technical support is provided for industrial upgrading.
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Description

Technical Field

[0001] This invention relates to the field of wheel hub brake disc locking technology, and in particular to an automatic brake disc screw locking device. Background Technology

[0002] With the rapid expansion of the electric vehicle market and the continuous development of its manufacturing processes towards automation, high efficiency, and high quality, the automation of vehicle and component assembly has become a key link in the industry's transformation and upgrading. Among them, the assembly of the wheel assembly is an important workstation in the production process, especially the fastening connection (i.e., "locking") of the wheel hub and brake disc using multiple bolts / screws.

[0003] On existing production lines, the fastening process for wheel hubs and brake discs mainly relies on the following two technical solutions: 1. Manual or semi-automatic fastening: Operators use handheld electric or pneumatic wrenches to manually pick up bolts and tighten them one by one. This method is not only labor-intensive and inefficient, but also completely dependent on the operator's experience and sense of responsibility. Human factors can easily lead to uneven preload, missed tightening, incorrect tightening, and other quality problems, posing serious safety hazards. At the same time, the production cycle is difficult to match with automated production lines, becoming a bottleneck restricting capacity improvement. 2. Substation automated fastening: Some advanced production lines have adopted automated equipment, but existing technologies often break down key functions such as "automatic bolt feeding," "visual positioning of blind holes in threads," "multi-axis synchronous tightening," and "torque / angle monitoring" into multiple independent devices or workstations. For example, one device first feeds and pre-places the bolts, and then another multi-axis tightening machine performs the final fastening. This decentralized solution has significant disadvantages: large equipment layout footprint, high cumulative error in workpiece handling and positioning between processes, complex system coordination control, and difficulty in further optimizing the overall cycle time. In addition, interface and communication issues between multiple independent devices also increase the system's failure rate and maintenance costs.

[0004] In summary, there is a lack of a highly integrated and intelligent fully automatic locking device in the existing technology. Therefore, an automatic locking device for brake disc screws is proposed. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the present invention proposes an automatic brake disc screw fastening device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automatic brake disc screw fastening device, comprising a frame and an outer shell mounted on the top of the frame, wherein the frame is provided with a turntable mechanism, a disc feeding mechanism, a disc moving mechanism, a pneumatic screw feeder, a hole position adjustment mechanism, a screw fastening mechanism, a discharge mechanism and a vision camera, and a crosshair laser is fixedly installed on the top inner wall of the outer shell. A turntable mechanism, comprising a turntable rotatably mounted on a frame, the turntable having a carrier for accommodating hubs of various sizes, and a crosshair laser for positioning the hub holes placed in the carrier. The disc feeding mechanism includes a second rotating disk rotatably mounted on the frame for placing the brake disc, and the second rotating disk is provided with a plurality of stacking rods for positioning the brake disc; The tray-moving mechanism includes a column that is raised, lowered, translated, and rotated above the turntable mechanism and the tray-feeding mechanism. The vision camera is used to identify the hole position for the column to grasp the brake disc from below. The hole position adjustment mechanism includes multiple uprights fixedly connected to the frame, and a hole positioning rod for aligning the wheel hub and brake disc on the load seat is slidably installed on the multiple uprights. The screw fastening mechanism includes multiple uprights two fixedly connected to the frame. A movable plate two and a movable plate three are slidably sleeved on the multiple uprights two. Multiple screw chucks with adjustable spacing are provided on the movable plate three. The pneumatic screw feeder is used to supply fastening screws to the multiple screw chucks. Multiple fastening motors are fixedly installed on the movable plate two. A screwdriver bit is connected to the output shaft of the fastening motor and extends into the corresponding screw chuck. The discharge mechanism includes a pneumatic clamp that lifts above the frame, the pneumatic clamp being used to grab a wheel hub with a brake disc locked on the carrier and transfer it outside the housing.

[0007] Preferably, the turntable mechanism includes a geared motor fixedly connected to the frame, the output shaft of the geared motor being fixedly connected to the center of the bottom of the turntable, multiple load seats passing through the turntable and fixedly connected to it, and the load seats having stepped loading grooves.

[0008] Preferably, the tray feeding mechanism includes a second geared motor fixedly connected to the frame, the output shaft of the carrier is fixedly connected to the center of the bottom of the second rotating disk, and the plurality of stacking rods are distributed in a circumferential array on the top of the second rotating disk.

[0009] Preferably, the pallet-moving mechanism includes two columns 1 fixed to the top of the frame, and the same linear module 1 is fixedly installed on the two columns 1. The linear module 1 is horizontally arranged, and a linear module 2 is fixedly installed on the slider of the linear module 1. The linear module 2 is vertically arranged, and a rotary table is fixedly installed on the slider of the linear module 2. The turntable of the rotary table is fixedly connected to the top of the mounting plate, and multiple electromagnets arranged in a circular array are fixedly installed at the bottom of the mounting plate.

[0010] Preferably, the top of multiple uprights is fixedly mounted with the same cylinder, the piston rod end of the cylinder is fixedly mounted with a movable plate, the multiple uprights pass through the movable plate and are fixedly connected to the movable plate, the bottom of the movable plate is fixedly mounted with an mounting plate, and the positioning rod is detachably mounted on the mounting plate.

[0011] Preferably, one side of the multiple movable plates three is provided with cylinder two and cylinder three. The piston rod end of cylinder two is fixedly connected to the bottom of the movable plate three, and the piston rod end of cylinder three is fixedly connected to the top of the movable plate two. Universal joints are fixedly installed on the top of multiple bits and the output shaft ends of multiple locking motors. The two universal joints on the corresponding bits and locking motors are connected by a telescopic transmission rod.

[0012] Preferably, the pneumatic screw feeder includes a feeding frame fixed to the top of the frame, a loading rack and multiple vibrating feeders are fixedly installed on the top of the feeding frame, the multiple vibrating feeders are all connected to the loading rack, and a distributor is provided on the side of the multiple vibrating feeders away from the loading rack. The screw chuck is provided with a feed pipe, and the corresponding feed pipe is connected to the distributor through a flexible conduit.

[0013] Preferably, the discharge mechanism includes a fourth column fixed to the top of the frame and a second column disposed on the outside of the frame. The top of the fourth column and the second column are fixedly installed with the same linear module third. The linear module third is horizontally disposed. The linear module fourth is fixedly installed on the slider of the linear module third. The linear module fourth is vertically disposed. The pneumatic clamp is fixed on the slider of the linear module fourth.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention highly integrates key functional modules such as automatic bolt feeding, precise visual positioning, multi-axis synchronous tightening, real-time torque / angle monitoring, and quality judgment into a single device. It achieves fully unmanned and automated operation from "material loading to qualified product output." This completely eliminates the efficiency bottlenecks and human-induced quality fluctuations caused by traditional manual or semi-automatic operations, resulting in stable and significantly improved production cycle time, making it perfectly compatible with modern high-speed automated production lines.

[0015] This invention utilizes an integrated machine vision system to accurately identify the position and angle of the blind holes in the wheel hub threads, guiding the tightening shaft to adaptively align itself. This solves the problem of bolt "toothing" or stripping caused by accumulated positioning errors. Simultaneously, the use of a high-precision servo tightening shaft and a closed-loop control system ensures that the preload (torque + angle) of each bolt strictly meets process requirements, achieving extremely high tightening consistency and completely avoiding safety hazards such as missed tightening, incorrect tightening, and uneven preload.

[0016] The integrated design of this invention significantly reduces the equipment footprint and production line length, simplifies material flow paths, and lowers equipment investment and maintenance costs caused by repeated handling and repositioning. Simultaneously, the control and maintenance of individual devices are simpler, system stability and reliability are improved, and overall operating costs are significantly reduced.

[0017] This invention allows for quick tooling and fixture changes and control parameter adjustments to adapt to different models and bolt specifications of wheel hubs and brake discs, enhancing the flexibility of the production line. The integrated data acquisition and monitoring system records and tracks the complete tightening process data for each product in real time, providing a solid data foundation for product quality analysis, process optimization, and intelligent manufacturing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an automatic brake disc screw fastening device proposed in this invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of an automatic brake disc screw fastening device proposed in this invention. Figure 2 ; Figure 3 This is a top view (excluding the outer casing) of an automatic brake disc screw fastening device proposed in this invention. Figure 4 This is a front view (excluding the outer casing) of an automatic brake disc screw fastening device proposed in this invention. Figure 5 This is a schematic diagram of the turntable mechanism and hole position adjustment mechanism in an automatic brake disc screw fastening device proposed in this invention; Figure 6 This is a schematic diagram of the disc feeding mechanism in an automatic brake disc screw fastening device proposed in this invention; Figure 7 This is a schematic diagram of the disc-shifting mechanism in an automatic brake disc screw fastening device proposed in this invention; Figure 8 This is a schematic diagram of the hole position adjustment mechanism in an automatic brake disc screw fastening device proposed in this invention; Figure 9 This is a schematic diagram of the screw fastening mechanism in an automatic brake disc screw fastening device proposed in this invention; Figure 10 for Figure 9 A magnified structural diagram of part A in the middle; Figure 11 This is a schematic diagram of the pneumatic screw feeder in an automatic brake disc screw fastening device proposed in this invention; Figure 12This is a schematic diagram of the discharge mechanism in an automatic brake disc screw fastening device proposed in this invention.

[0019] In the diagram: 1. Frame; 101. Housing; 2. Turntable mechanism; 3. Feeding mechanism; 4. Transfer mechanism; 5. Pneumatic screw feeder; 6. Hole position adjustment mechanism; 7. Screw fastening mechanism; 8. Discharge mechanism; 9. Vision camera; 10. Crosshair laser. 21. Rotary disc 1; 22. Gear motor 1; 23. Loading seat; 231. Loading trough; 31. Rotary disk II; 32. Gear motor II; 33. Stacking rod; 41. Linear Module One; 42. Linear Module Two; 43. Rotary Table; 44. Mounting Plate; 441. Electromagnet; 45. Column One; 51. Feeding rack; 52. Loading rack; 53. Vibrating feeder; 54. Distributor; 61. One upright pole; 62. One movable plate; 63. One cylinder; 64. Mounting plate; 65. Positioning rod; 71. Upright pole two; 72. Moving plate two; 73. Moving plate three; 74. Cylinder two; 75. Cylinder three; 76. Locking motor; 77. Telescopic transmission rod; 78. Universal joint; 79. Screwdriver bit; 710. Screw chuck; 7101. Feed pipe; 81. Column 2; 82. Linear Module 3; 83. Linear Module 4; 84. Pneumatic Clamp; 85. Column 4. Detailed Implementation

[0020] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please refer to Figures 1-12 The present invention provides a technical solution: an automatic brake disc screw fastening device, including a frame 1 and an outer shell 101 installed on the top of the frame 1. The frame 1 is provided with a turntable mechanism 2, a feed mechanism 3, a transfer mechanism 4, a pneumatic screw feeder 5, a hole position adjustment mechanism 6, a screw fastening mechanism 7, a discharge mechanism 8 and a vision camera 9. A crosshair laser 10 is fixedly installed on the top inner wall of the outer shell 101. Turntable mechanism 2 includes a turntable 21 rotatably mounted on the frame 1. The turntable 21 is provided with a carrier 23 for accommodating hubs of various sizes. The crosshair laser 10 is used to position the hub holes placed in the carrier 23. The disc feeding mechanism 3 includes a rotating disc 31 rotatably mounted on the frame 1 for placing the brake disc, and the rotating disc 31 is provided with a plurality of stacking rods 33 for positioning the brake disc. The tray-moving mechanism 4 includes a column 45 that is raised, lowered, translated, and rotated above the turntable mechanism 2 and the tray-supply mechanism 3. The vision camera 9 is used to identify the hole position of the column 45 for grasping the brake disc from below. The hole position adjustment mechanism 6 includes multiple uprights 61 fixedly connected to the frame 1, and a hole position positioning rod 65 for aligning the wheel hub and brake disc on the load seat 23 is slidably installed on the multiple uprights 61. The screw fastening mechanism 7 includes multiple uprights 71 fixedly connected to the frame 1. A movable plate 72 and a movable plate 73 are slidably mounted on the multiple uprights 71. Multiple screw chucks 710 with adjustable spacing are provided on the movable plate 73. A pneumatic screw feeder 5 is used to supply fastening screws to the multiple screw chucks 710. Multiple fastening motors 76 are fixedly installed on the movable plate 72. A screwdriver bit 79 is connected to the output shaft of the fastening motor 76 and extends into the corresponding screw chuck 710. The discharge mechanism 8 includes a pneumatic clamp 84 that lifts above the frame 1. The pneumatic clamp 84 is used to grab the wheel hub with a brake disc locked on the carrier 23 and transfer it to the outside of the housing 101.

[0022] Furthermore, the hub hole position that coincides with the intersection of the crosshairs emitted by the crosshair laser 10 is the farthest from the axis of the rotating disk 21.

[0023] Furthermore, a window is provided on the table surface of the frame 1 to facilitate observation by the vision camera 9, and the axes of the vision camera 9, rotating disk 1 21 and rotating disk 2 31 are located on the same vertical plane.

[0024] The turntable mechanism 2 includes a geared motor 22 fixedly connected to the frame 1. The output shaft of the geared motor 22 is fixedly connected to the center of the bottom of the turntable 21. Multiple load seats 23 pass through the turntable 21 and are fixedly connected to the turntable 21. The load seats 23 are provided with stepped load grooves 231.

[0025] Furthermore, the stepped cargo slot 231 allows the cargo seat 23 to accommodate wheel hubs of various sizes.

[0026] The tray feeding mechanism 3 includes a second geared motor 32 fixedly connected to the frame 1, the output shaft of the carrier 23 fixedly connected to the center of the bottom of the second rotating disk 31, and multiple stacking rods 33 distributed in a circular array on the top of the second rotating disk 31.

[0027] The pallet-moving mechanism 4 includes two columns 45 fixed to the top of the frame 1. The same linear module 41 is fixedly installed on the two columns 45. The linear module 41 is horizontally arranged. A linear module 42 is fixedly installed on the slider of the linear module 41. The linear module 42 is vertically arranged. A rotary table 43 is fixedly installed on the slider of the linear module 42. The turntable of the rotary table 43 is fixedly connected to the top of the mounting plate 44. Multiple electromagnets 441 arranged in a circular array are fixedly installed at the bottom of the mounting plate 44.

[0028] The top of multiple uprights 61 is fixedly installed with the same cylinder 63. The piston rod end of the cylinder 63 is fixedly installed with a movable plate 62. Multiple uprights 61 pass through the movable plate 62 and are fixedly connected to the movable plate 62. The bottom of the movable plate 62 is fixedly installed with an mounting plate 64. The positioning rod 65 is detachably installed on the mounting plate 64.

[0029] Furthermore, the bottom end of the positioning rod 65 is provided with a guide bevel to ensure that when there is a deviation in the axis of the positioning rod 65, the positioning rod 65 can still be smoothly inserted into the corresponding hole of the lower wheel hub. The positioning rod 65 can also move and lock along the radial direction of the rotating disk 21, thereby enabling positioning of wheel hub holes of different sizes.

[0030] One side of the multiple movable plates 73 is equipped with cylinders 74 and 75. The piston rod end of cylinder 74 is fixedly connected to the bottom of the movable plate 73, and the piston rod end of cylinder 75 is fixedly connected to the top of the movable plate 72. Universal joints 78 are fixedly installed on the top of the multiple screwdriver bits 79 and the output shaft ends of the multiple locking motors 76. The two universal joints 78 on the corresponding screwdriver bits 79 and locking motors 76 are connected by a telescopic transmission rod 77.

[0031] The pneumatic screw feeder 5 includes a feeding frame 51 fixed on the top of the frame 1. A loading frame 52 and multiple vibrating feeders 53 are fixedly installed on the top of the feeding frame 51. The multiple vibrating feeders 53 are all connected to the loading frame 52. A distributor 54 is provided on the side of the multiple vibrating feeders 53 away from the loading frame 52. A feed pipe 7101 is provided on the screw chuck 710. The corresponding feed pipe 7101 and the distributor 54 are all connected by a flexible conduit.

[0032] Furthermore, the distance between the multiple screw chucks 710 can be adjusted synchronously, thereby enabling the fastening of different sized wheel hubs and brake discs. The feeder 54 can pneumatically feed the fastening screws from the flexible guide tube into the feed pipe 7101. The specific structure of the pneumatic screw feeder 5 can be found in the patent application No. 201921702.X, "Screw Feeder", which is existing technology and will not be elaborated further here.

[0033] The discharge mechanism 8 includes a fourth column 85 fixed to the top of the frame 1 and a second column 81 set on the outside of the frame 1. The top of the fourth column 85 and the second column 81 are fixedly installed with the same linear module 82. The linear module 82 is set horizontally. A fourth linear module 83 is fixedly installed on the slider of the third linear module 82. The fourth linear module 83 is set vertically. The pneumatic clamp 84 is fixed on the slider of the fourth linear module 83.

[0034] In this embodiment: S1, when in use, the hub is placed from the front window of the outer casing 101 into the corresponding carrier 23 on the turntable mechanism 2, and the position of the hub in the carrier 23 is adjusted so that the light emitted by the crosshair laser 10 can be aligned with the center of the corresponding hole on the hub. This hole is also the hole for subsequent calibration of the positioning rod 65. S2, then the geared motor 22 drives the rotating disk 21 and multiple carrier seats 23 to rotate, so that the above-mentioned wheel hub is intermittently transferred to the work station of the adjacent pallet-moving mechanism 4. Then, the linear module 41 and the linear module 42 drive the mounting disk 44 to move and lift, so that the mounting disk 44 can grab the brake disc at the corresponding position on the rotating disk 31 through multiple electromagnets 441. Then, the mounting disk 44 transfers and places the brake disc to the top of the wheel hub of the adjacent pallet-moving mechanism 4. During the above-mentioned transfer of the brake disc, the vision camera 9 can identify the hole position on the brake disc, and the rotating table 43 drives the mounting disk 44 to rotate, so that the brake disc hole position grabbed by the mounting disk 44 can be aligned with the corresponding empty position on the wheel hub. S3, after the brake disc is placed on the top of the wheel hub of the adjacent pallet-shifting mechanism 4, the geared motor 22 continues to drive the rotating disk 21 and multiple carrier seats 23 to rotate, so that the wheel hub carrying the brake disc is intermittently transferred to the work position of the adjacent hole adjustment mechanism 6. Then, the control cylinder 63 drives the moving plate 62 to move down, and the moving plate 62 drives the positioning rod 65 to move down through the mounting plate 64. The positioning rod 65 moves down and passes through the hole of the brake disc and enters the corresponding hole in the lower wheel hub. In S1, since the center of the wheel hub hole is aligned with the intersection of the cross beams emitted by the cross laser 10 by manual means, it is easy to make a deviation. Therefore, when the positioning rod 65 moves down and passes through the hole of the brake disc and enters the corresponding hole in the lower wheel hub, it will drive the brake disc to rotate, so that the holes on the brake disc are aligned with the holes on the lower wheel hub. S4, then the geared motor 22 continues to drive the rotating disk 21 and multiple carrier seats 23 to rotate, so that the wheel hub carrying the brake disc is intermittently transferred to the adjacent screw fastening mechanism 7. Then the cylinder 2 74 controls the moving plate 3 73 to move down, so that multiple screw chucks 710 move down to the position directly above the corresponding brake disc hole. Then the cylinder 3 75 drives the moving plate 2 72 to move down, so that each bit 79 can push out the fastening screw in the corresponding screw chuck 710. The fastening motor 76 drives the bit 79 to rotate, so that the bit 79 can drive the fastening screw to rotate synchronously when pushing the fastening screw out of the screw chuck 710. Finally, the fastening screw spirals downward and passes through the hole on the brake disc to fasten the wheel hub, thus completing the fastening connection between the brake disc and the wheel hub through the fastening screw. S5, then the geared motor 22 continues to drive the rotating disk 21 and multiple carrier seats 23 to rotate, so that the wheel hub carrying the brake disc is intermittently transferred to the work station of the adjacent discharge mechanism 8. The linear module 3 82 and the linear module 4 83 drive the pneumatic clamp 84 to lift and move horizontally, so that the pneumatic clamp 84 grabs the wheel hub and brake disc assembled together by fastening screws, and transfers the wheel hub to the outside of the outer casing 101 for transfer.

[0035] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A brake disc screw automatic locking device, comprising a rack (1) and a shell cover (101) installed on the top of the rack (1), characterized in that: The rack (1) is provided with a turntable mechanism (2), a disc feeding mechanism (3), a disc carrying mechanism (4), a pneumatic screw feeder (5), a hole position adjusting mechanism (6), a screw locking mechanism (7), a discharging mechanism (8) and a visual camera (9), and a cross line laser (10) is fixedly installed on the inner wall of the top of the shell cover (101); The turntable mechanism (2) comprises a rotating disc I (21) rotatably installed on the rack (1), and the rotating disc I (21) is provided with a plurality of object holders (23) for accommodating hub of various sizes, and the cross line laser (10) is used for positioning the hub hole position placed in the object holder (23); The disc feeding mechanism (3) comprises a rotating disc II (31) rotatably installed on the rack (1) for placing brake discs, and the rotating disc II (31) is provided with a plurality of stacking rods (33) for positioning the brake discs; The disc carrying mechanism (4) comprises a vertical column I (45) which is lifted, translated and rotated above the turntable mechanism (2) and the disc feeding mechanism (3), and the visual camera (9) is used for identifying the hole position of the brake disc grabbed by the vertical column I (45) from below; The hole position adjusting mechanism (6) comprises a plurality of vertical rods I (61) fixedly connected with the rack (1), and a hole position positioning rod (65) for aligning the hub on the object holder (23) and the brake disc is slidably installed on the vertical rods I (61); The screw locking mechanism (7) comprises a plurality of vertical rods II (71) fixedly connected with the rack (1), a moving plate II (72) and a moving plate III (73) are slidably sleeved on the vertical rods II (71), the moving plate III (73) is provided with a plurality of screw chucks (710) with adjustable spacing, the pneumatic screw feeder (5) is used for supplying fastening screws to the plurality of screw chucks (710), a plurality of locking motors (76) are fixedly installed on the moving plate II (72), a chuck (79) is connected to the output shaft of the locking motor (76), and the chuck (79) extends into the corresponding screw chuck (710); The discharging mechanism (8) comprises a pneumatic clamp (84) which is lifted above the rack (1), and the pneumatic clamp (84) is used for grabbing the hub with the brake disc locked on the object holder (23) and transferring it to outside the shell cover (101).

2. The brake disc screw automatic locking equipment according to claim 1, characterized in that: The turntable mechanism (2) comprises a speed reducer motor I (22) fixedly connected with the rack (1), the output shaft of the speed reducer motor I (22) is fixedly connected with the bottom center of the rotating disc I (21), a plurality of object holders (23) penetrate through and are fixedly connected with the rotating disc I (21), and the object holder (23) is provided with a stepped object groove (231).

3. The apparatus according to claim 1, wherein: The disc feeding mechanism (3) comprises a speed reducer motor II (32) fixedly connected with the rack (1), the output shaft of the object holder (23) is fixedly connected with the bottom center of the rotating disc II (31), and the plurality of stacking rods (33) are distributed in a circumferential array at the top of the rotating disc II (31).

4. The brake disc screw automatic locking equipment according to claim 1, characterized in that: The disc moving mechanism (4) comprises two stand columns I (45) fixed on the top of the frame (1), a same linear module I (41) fixedly installed on the two stand columns I (45), wherein the linear module I (41) is horizontally arranged, a linear module II (42) fixedly installed on the sliding block of the linear module I (41), wherein the linear module II (42) is vertically arranged, a rotating table (43) fixedly installed on the sliding block of the linear module II (42), and a mounting disc (44) fixedly connected to the top of the rotating table (43), wherein a plurality of electromagnets (441) in a circumferential array are fixedly installed on the bottom of the mounting disc (44).

5. The brake disc screw automatic locking equipment according to claim 1, characterized in that: A same air cylinder I (63) is fixedly installed on the top of the plurality of stand columns I (61), a moving plate I (62) is fixedly installed on the end of the piston rod of the air cylinder I (63), the plurality of stand columns I (61) all penetrate through and are fixedly connected with the moving plate I (62), an installation plate (64) is fixedly installed on the bottom of the moving plate I (62), and the positioning rod (65) is detachably installed on the installation plate (64).

6. The brake disc screw automatic locking equipment according to claim 1, characterized in that: A plurality of moving plates III (73) are provided with an air cylinder II (74) and an air cylinder III (75) on one side, the end of the piston rod of the air cylinder II (74) is fixedly connected with the bottom of the moving plate III (73), the end of the piston rod of the air cylinder III (75) is fixedly connected with the top of the moving plate II (72), a universal joint (78) is fixedly installed on the top end of each of the plurality of batch heads (79) and the output shaft end of each of the plurality of locking motors (76), and the two universal joints (78) on the corresponding batch head (79) and locking motor (76) are connected through the telescopic transmission rod (77).

7. The brake disc screw automatic locking equipment according to claim 1, characterized in that: The pneumatic screw feeder (5) comprises a feeding frame (51) fixed on the top of the frame (1), an upper feeding frame (52) and a plurality of vibrating feeders (53) fixedly installed on the top of the feeding frame (51), wherein the plurality of vibrating feeders (53) are all in communication with the upper feeding frame (52), each vibrating feeder (53) is provided with a distributor (54) away from the upper feeding frame (52), the screw chuck (710) is provided with an inlet pipe (7101), and each inlet pipe (7101) and the distributor (54) are connected through a soft conduit.

8. The brake disc screw automatic locking equipment according to claim 1, characterized in that: The discharging mechanism (8) comprises a stand column IV (85) fixed on the top of the frame (1) and a stand column II (81) arranged on the outer side of the frame (1), a same linear module III (82) fixedly installed on the top of the stand column IV (85) and the stand column II (81), wherein the linear module III (82) is horizontally arranged, a linear module IV (83) fixedly installed on the sliding block of the linear module III (82), wherein the linear module IV (83) is vertically arranged, and the pneumatic clamp (84) is fixed on the sliding block of the linear module IV (83).