Automobile brake disc drilling clamping device

Abstract

This invention belongs to the technical field of automotive brake disc processing equipment, specifically relating to an automotive brake disc drilling and clamping device, including a worktable, a feeding mechanism, a positioning mechanism, and a drilling mechanism. The feeding mechanism is located on one side of the worktable and is used to transport the brake discs to be processed. Through the linkage design of the drilling mechanism and the feeding mechanism, the invention automatically triggers the feeding after drilling is completed, and the next brake disc to be processed pushes the previous finished brake disc to unload, eliminating the need for manual loading and unloading, greatly improving production efficiency and reducing labor intensity. The positioning mechanism adopts elastic centering jaws that conform to the outer circumference of the brake disc, relying on elastic resistance to achieve precise positioning. Combined with the correction effect of the workpiece alignment mechanism, it effectively avoids brake disc offset and ensures accurate drilling position. The structure is simple and low-cost: the whole adopts a mechanical linkage structure, eliminating the need for complex electrical control systems and sensors, resulting in a low failure rate and convenient maintenance, suitable for brake disc production of various scales.

Description

Technical Field

[0001] This invention belongs to the technical field of automotive brake disc processing equipment, specifically relating to an automotive brake disc drilling and clamping device. Background Technology

[0002] The brake disc is a core component of the automotive braking system. Its surface needs to be machined with multiple through holes to achieve heat dissipation, weight reduction, and assembly functions. The precision and efficiency of drilling directly affect the product quality and production efficiency of the brake disc.

[0003] Currently, existing brake disc drilling and clamping devices often suffer from complex structures, cumbersome operations, and low levels of automation. Most require manual loading, positioning, and unloading of each disc, which is not only labor-intensive but also prone to errors due to human operation, leading to deviations in drilling positions and affecting processing accuracy. Some automated clamping devices rely on complex electronic control systems and sensors, resulting in high costs, high failure rates, and inconvenient maintenance, making it difficult to meet the needs of small and medium-batch production.

[0004] To address the shortcomings of the existing technologies, this invention proposes a simple, highly automated, and stable machining precision automotive brake disc drilling and clamping device. Through a reasonable mechanism design, it realizes automatic feeding, positioning, drilling, and unloading of brake discs without the need for a complex electronic control system, thereby reducing costs while improving production efficiency and machining precision. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of existing brake disc drilling and clamping devices, such as low automation, poor machining accuracy, complex structure, and high cost, and to provide an automotive brake disc drilling and clamping device that enables continuous automated machining of brake discs, simplifies the structure, reduces costs, and ensures machining accuracy.

[0006] Technical solution

[0007] To achieve the above objectives, the present invention provides an automotive brake disc drilling and clamping device, comprising a worktable, a feeding mechanism, a positioning mechanism, and a drilling mechanism; the feeding mechanism is disposed on one side of the worktable for conveying the brake disc to be processed; the positioning mechanism is disposed on the worktable for positioning and limiting the brake disc; the drilling mechanism is disposed corresponding to the positioning mechanism for drilling the positioned brake disc; the drilling mechanism is linked with the feeding mechanism, after the drilling mechanism completes drilling and resets, it triggers the feeding mechanism to convey the next brake disc to be processed, and the next brake disc to be processed pushes the previously processed brake disc away from the positioning mechanism, thereby realizing continuous processing.

[0008] Furthermore, the worktable is a machine tool worktable, and the upper surface of the machine tool worktable is provided with a radial limiting sliding groove for the brake disc to slide. The radial limiting sliding groove is provided to limit the sliding direction of the brake disc, prevent the brake disc from deviating during the conveying process, and ensure that the brake disc can be accurately conveyed to the positioning mechanism.

[0009] Furthermore, the feeding mechanism includes a brake disc storage cylinder and a transverse pushing cylinder; the brake disc storage cylinder is fixed to one side of the upper part of the machine tool worktable and is used for stacking and storing materials, which can store multiple brake discs to be processed at one time, reducing the frequency of manual feeding; the transverse pushing cylinder is fixed to one side of the brake disc storage cylinder, and its piston rod can extend into the storage cylinder to push the brake disc, realizing the automatic conveying of the brake discs to be processed.

[0010] Furthermore, a single workpiece discharge groove is provided on the bottom side wall of the brake disc storage cylinder. The groove diameter matches the outer diameter of the brake disc, and the groove height matches the thickness of the brake disc. This ensures that the brake discs to be processed in the brake disc storage cylinder can be discharged one by one in an orderly manner from the single workpiece discharge groove, avoiding jamming or chaotic conveying caused by multiple brake discs being discharged at the same time.

[0011] Furthermore, the positioning mechanism consists of two sets of symmetrically arranged elastic centering jaws. The two sets of elastic centering jaws are located on the machine tool worktable and directly below the drilling mechanism, respectively located on both sides of the radial limiting sliding groove. Their inner contact surfaces are adapted to the outer circumferential contour of the brake disc. The brake disc is positioned and prevented from moving back by relying on elastic resistance, ensuring that the brake disc remains stable during the drilling process and avoiding displacement of the drilling position due to vibration or displacement.

[0012] Furthermore, the drilling mechanism is a drilling execution host. The upper part of the machine tool worktable is provided with a vertical support frame. The drilling execution host is mounted on the vertical support frame and is driven up and down by a vertical drive cylinder. The vertical drive cylinder provides a stable driving force to ensure that the drilling feed of the drilling execution host is accurate and controllable, thereby improving drilling accuracy.

[0013] Furthermore, the upper surface of the machine tool worktable is provided with an embedded mounting groove, and a vertical positioning pin is provided in the mounting groove. The tail of the elastic centering claw is sleeved on the vertical positioning pin and embedded in the mounting groove. This structure realizes the stable installation of the elastic centering claw, while allowing the elastic centering claw to swing elastically around the vertical positioning pin, which facilitates the brake disc to enter the positioning position and to leave the positioning position after processing.

[0014] Furthermore, the drilling execution host is provided with a workpiece alignment mechanism on the side away from the brake disc storage cylinder. The workpiece alignment mechanism includes a linkage bend and an inclined alignment pressure block. The inclined alignment pressure block is connected to the drilling execution host through the linkage bend and has a guide correction inclined surface at its bottom, which is used to correct the position of the brake disc that is transported to the positioning position, so as to avoid inaccurate drilling position due to the brake disc pushing offset, and further improve the processing accuracy.

[0015] Furthermore, flexible buffer pads are provided on both sides of the discharge end of the radial limiting sliding groove to buffer the discharge impact force after the brake disc is disengaged from the positioning mechanism, and to prevent the brake disc from being damaged by collision; a drilling avoidance through hole is opened at the bottom of the groove corresponding to the position of the drilling host drill bit to avoid the drill bit from colliding with the machine tool table during drilling, to protect the drill bit and the table, and at the same time to ensure that the drill bit can descend to the position and ensure that the drilling depth meets the requirements.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] Through the linkage design of the drilling mechanism and the feeding mechanism, the feeding is automatically triggered after drilling is completed. The next brake disc to be processed pushes the previous finished brake disc to unload, eliminating the need for manual loading and unloading, which greatly improves production efficiency and reduces labor intensity. The positioning mechanism adopts elastic centering jaws that fit the outer contour of the brake disc and achieves precise positioning by relying on elastic resistance. With the correction effect of the workpiece alignment mechanism, the brake disc is effectively prevented from shifting, ensuring accurate drilling position. The structure is simple and low-cost: the whole adopts a mechanical linkage structure, which does not require a complex electrical control system and sensors. It has a low failure rate, is easy to maintain, and is suitable for brake disc production of various scales. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0020] Figure 2 This is a top view of the overall structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the overall side view structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the machine tool worktable structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the workpiece alignment mechanism of the present invention;

[0024] Figure 6This is an enlarged structural diagram of point A in the present invention.

[0025] In the diagram: 1. Machine tool worktable; 2. Brake disc storage cylinder; 3. Radial limiting sliding groove; 4. Single workpiece discharge groove; 5. Horizontal pushing cylinder; 6. Drilling actuator; 7. Elastic centering jaw; 8. Vertical support frame; 9. Vertical drive cylinder; 10. Embedded mounting groove; 11. Vertical positioning pin; 12. Linkage bend; 13. Inclined alignment pressure block; 14. Flexible buffer pad; 15. Drilling avoidance through hole. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below 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.

[0027] This invention relates to a drilling and clamping device for automotive brake discs, comprising a worktable, a feeding mechanism, a positioning mechanism, and a drilling mechanism.

[0028] The worktable, designated as machine tool worktable 1, is made of cast iron, providing excellent rigidity and stability to prevent vibrations during machining from affecting drilling accuracy. A radial limiting sliding groove 3 is formed along the length of the upper surface of machine tool worktable 1. The cross-section of the radial limiting sliding groove 3 is U-shaped, and its width matches the outer diameter of the brake disc. This groove allows the brake disc to be machined and the machined brake disc to slide along the groove, precisely limiting the sliding direction of the brake disc and preventing lateral deviation during transport.

[0029] The feeding mechanism includes a brake disc storage cylinder 2 and a transverse pusher cylinder 5, both of which are fixedly installed on the upper left side of the machine tool worktable 1.

[0030] The brake disc storage cylinder 2 is a cylindrical hollow structure with its axis perpendicular to the upper end face of the machine tool worktable 1. It is fixed to the upper left corner of the machine tool worktable 1 by bolts and is used to stack and store multiple brake discs to be processed. The inner diameter of the brake disc storage cylinder 2 is slightly larger than the outer diameter of the brake disc to ensure that the brake discs can be stacked smoothly without shaking. A single workpiece discharge groove 4 is provided on the bottom right side wall of the brake disc storage cylinder 2 away from the transverse pusher cylinder 5. The single workpiece discharge groove 4 penetrates the side wall of the brake disc storage cylinder 2. Its groove diameter is completely matched with the outer diameter of the brake disc, and its groove height is consistent with the thickness of the brake disc. This allows the bottom brake disc to be processed in the brake disc storage cylinder 2 to pass through the single workpiece discharge groove 4, realizing single and orderly discharge and avoiding jamming caused by multiple brake discs being discharged at the same time.

[0031] The transverse pushing cylinder 5 is fixed to the left side of the brake disc storage cylinder 2 via a cylinder mounting seat. The axis of its piston rod is set horizontally and parallel to the length direction of the radial limiting sliding groove 3. The free end of the piston rod can pass through the left side wall of the brake disc storage cylinder 2 and extend into its interior to contact the brake disc to be processed at the bottom of the brake disc storage cylinder 2. When the transverse pushing cylinder 5 is working, the piston rod extends and can push the brake disc to be processed at the bottom of the brake disc storage cylinder 2 from the single workpiece discharge groove 4 into the radial limiting sliding groove 3, thereby realizing the automatic conveying of the brake disc to be processed.

[0032] The positioning mechanism consists of two sets of symmetrically arranged elastic centering claws 7, which are used to position and limit the brake disc to be processed that is conveyed into place in the radial limiting sliding groove 3.

[0033] Both sets of elastic centering jaws 7 are set on the upper end face of the machine tool worktable 1 and located directly below the drilling mechanism. They are symmetrically distributed at the front and rear ends of the radial limiting sliding groove 3, i.e., at the machining position of the sliding groove. The elastic centering jaws 7 are made of spring steel, which has good elasticity and wear resistance. Their inner contact surface is machined into an arc surface that matches the outer periphery of the brake disc, ensuring that it can fit tightly with the outer periphery of the brake disc.

[0034] To achieve stable installation and elastic swing of the elastic centering jaw 7, two symmetrically arranged embedded mounting grooves 10 are provided on the upper surface of the machine tool worktable 1 corresponding to the positions of the two sets of elastic centering jaws 7. The extension direction of the embedded mounting grooves 10 is consistent with the width direction of the radial limiting sliding groove 3. Each embedded mounting groove 10 is fixedly provided with a vertical positioning pin 11 inside, and the axis of the vertical positioning pin 11 is perpendicular to the upper surface of the machine tool worktable 1. The tail of the elastic centering jaw 7 is provided with a through hole that matches the vertical positioning pin 11. It is sleeved on the outside of the vertical positioning pin 11 through the through hole, and the tail of the elastic centering jaw 7 is completely embedded in the embedded mounting groove 10, so that the elastic centering jaw 7 can swing elastically around the vertical positioning pin 11 to achieve elastic reset.

[0035] When the transverse pushing cylinder 5 pushes the brake disc to be processed into the radial limiting sliding groove 3 and transports it to the processing station, the outer periphery of the brake disc will contact the inner arc surface of the two sets of elastic centering claws 7, squeezing the elastic centering claws 7 to swing outward around the vertical positioning pin 11. At the same time, the elastic centering claws 7 generate reverse elastic resistance by relying on their own elasticity, tightly clamping the brake disc between the two sets of elastic centering claws 7, realizing the axial positioning and anti-reverse of the brake disc, ensuring that the brake disc remains stable during the drilling process and does not displace.

[0036] The drilling mechanism is the drilling execution host 6, which is used to drill holes in the positioned brake disc to be processed;

[0037] A vertical support frame 8 is fixedly installed on the upper right side of the machine tool worktable 1. The vertical support frame 8 has a portal frame structure, and its bottom is fixedly connected to the upper end face of the machine tool worktable 1 by bolts. The top crossbeam is located directly above the radial limiting sliding groove 3. The drilling execution host 6 is assembled below the top crossbeam of the vertical support frame 8 and can move vertically up and down. On the right side of the upper end face of the machine tool worktable 1, corresponding to the top of the vertical support frame 8, a vertical drive cylinder 9 is fixedly installed. The piston rod axis of the vertical drive cylinder 9 is set vertically upward, and its free end passes through the top crossbeam of the vertical support frame 8 and is fixedly connected to the top of the drilling execution host 6. When the vertical drive cylinder 9 is working, the piston rod extends and retracts, which can drive the drilling execution host 6 to move up and down, realizing the drilling feed and reset action. The drill bit of the drilling execution host 6 is set vertically downward, corresponding to the drilling position of the brake disc held by the two sets of elastic centering jaws 7.

[0038] The drilling execution host 6 and the transverse pusher cylinder 5 are mechanically linked. When the drilling execution host 6 moves downward under the drive of the vertical drive cylinder 9 to complete the drilling of the brake disc, the vertical drive cylinder 9 drives the drilling execution host 6 to move upward and reset. During the upward movement of the drilling execution host 6, the piston rod of the transverse pusher cylinder 5 extends again, pushing the next brake disc to be processed in the brake disc storage cylinder 2 into the radial limiting sliding groove 3. During the pushing process, the next brake disc to be processed will contact the end of the previously processed brake disc and continue to push the previous finished brake disc, causing the finished brake disc to squeeze the two sets of elastic centering claws 7, forcing the elastic centering claws 7 to swing and expand outward around the vertical positioning pin 11, thereby causing the finished brake disc to disengage from the positioning mechanism and continue to slide along the radial limiting sliding groove 3 to achieve automatic unloading. At the same time, the next brake disc to be processed is pushed to the processing station, positioned by the elastic centering claws 7, and enters the next drilling process. This cycle is repeated to achieve continuous automated processing.

[0039] To further improve drilling accuracy and prevent the brake disc to be processed from shifting during the pushing process, a workpiece alignment mechanism is provided on the side of the drilling execution host 6 away from the brake disc storage cylinder 2. The workpiece alignment mechanism includes a linkage bend 12 and an inclined alignment block 13. One end of the linkage bend 12 is fixedly connected to the right side wall of the drilling execution host 6 by bolts, and the other end extends downward and is fixedly connected to the inclined alignment block 13, so that the inclined alignment block 13 is located between the gaps of the two sets of elastic centering claws 7 and moves up and down synchronously with the drilling execution host 6. The inner contact surface of the inclined alignment block 13 is an arc-shaped surface that matches the outer periphery of the brake disc, and a guide correction inclined surface is provided at its bottom. When the drilling execution host 6 moves downward, it will drive the inclined alignment block 13 to move downward synchronously. The guide correction inclined surface at the bottom of the inclined alignment block 13 will first contact the outer periphery of the brake disc to be processed. Through the guiding action of the inclined surface, the position of the brake disc is forcibly corrected to ensure that the drilling position of the brake disc corresponds precisely with the drill bit and to avoid drilling deviation.

[0040] To protect the finished brake disc and prevent it from being damaged by excessive discharge speed after detaching from the positioning mechanism, flexible buffer pads 14 are fixedly attached to both sides of the radial limiting sliding groove 3 away from the feeding mechanism. The flexible buffer pads 14 are made of rubber and have good cushioning performance. When the finished brake disc slides to the discharge end, it will contact the flexible buffer pads 14, which will absorb the impact force of the discharge and prevent the surface of the brake disc from being bumped or scratched. At the same time, a drilling avoidance through hole 15 is opened at the bottom of the radial limiting sliding groove 3, corresponding to the position of the drill bit of the drilling execution host 6. The diameter of the drilling avoidance through hole 15 is slightly larger than the diameter of the drill bit and is vertically coaxial with the drill bit. When the drill bit descends to drill, it can pass through the brake disc and extend into the drilling avoidance through hole 15 to prevent the drill bit from colliding with the machine tool worktable 1, protecting the drill bit and the worktable, and ensuring that the drill bit can descend to the correct position to ensure that the drilling depth meets the design requirements.

[0041] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for drilling and clamping a brake disc of a vehicle, characterized in that, The system includes a worktable, a feeding mechanism, a positioning mechanism, and a drilling mechanism. The feeding mechanism is located on one side of the worktable and is used to transport the brake disc to be processed. The positioning mechanism is located on the worktable and is used to position and limit the brake disc. The drilling mechanism is located corresponding to the positioning mechanism and is used to drill holes in the positioned brake disc. The drilling mechanism is linked with the feeding mechanism. After the drilling mechanism completes drilling and resets, it triggers the feeding mechanism to transport the next brake disc to be processed. The next brake disc pushes the previously processed brake disc away from the positioning mechanism, thus achieving continuous processing.

2. The drill chucking device for automobile brake disc according to claim 1, characterized in that: The worktable is a machine tool worktable (1), and the upper surface of the machine tool worktable (1) is provided with a radial limiting sliding groove (3) for the brake disc to slide.

3. The drill chucking device for automobile brake disc according to claim 1, characterized in that: The feeding mechanism includes a brake disc storage cylinder (2) and a transverse pushing cylinder (5); the brake disc storage cylinder (2) is fixed on one side of the upper part of the machine tool worktable (1) for stacking and storing materials; the transverse pushing cylinder (5) is fixed on one side of the brake disc storage cylinder (2), and its piston rod can extend into the storage cylinder to push the brake disc.

4. The automotive brake disc drilling and clamping device according to claim 3, characterized in that: The bottom side wall of the brake disc storage cylinder (2) is provided with a single workpiece discharge groove (4), the groove diameter of the single workpiece discharge groove (4) matches the outer diameter of the brake disc, and the groove height is consistent with the thickness of the brake disc.

5. The automotive brake disc drilling and clamping device according to claim 1, characterized in that: The positioning mechanism consists of two sets of symmetrically arranged elastic centering claws (7). The two sets of elastic centering claws (7) are located on the machine tool worktable (1) and directly below the drilling mechanism. They are located on both sides of the radial limiting sliding groove (3). Their inner contact surfaces are adapted to the outer periphery of the brake disc. The brake disc is positioned and stopped by relying on elastic resistance.

6. The automotive brake disc drilling and clamping device according to claim 1, characterized in that: The drilling mechanism is a drilling execution host (6). The upper part of the machine tool worktable (1) is provided with a vertical support frame (8). The drilling execution host (6) is mounted on the vertical support frame (8) and is driven to move up and down by a vertical drive cylinder (9).

7. The automotive brake disc drilling and clamping device according to claim 5, characterized in that: The upper surface of the machine tool worktable (1) is provided with an embedded mounting groove (10), and a vertical positioning pin (11) is provided in the mounting groove (10). The tail of the elastic centering claw (7) is sleeved on the vertical positioning pin (11) and embedded in the mounting groove (10).

8. The automotive brake disc drilling and clamping device according to claim 6, characterized in that: The drilling execution host (6) is provided with a workpiece alignment mechanism on the side away from the brake disc storage cylinder (2). The workpiece alignment mechanism includes a linkage bend (12) and an inclined alignment pressure block (13). The inclined alignment pressure block (13) is connected to the drilling execution host (6) through the linkage bend (12), and its bottom is provided with a guide correction inclined surface.

9. The automotive brake disc drilling and clamping device according to claim 2, characterized in that: The radial limiting sliding groove (3) has flexible buffer pads (14) on both sides of the discharge end, and a drilling avoidance through hole (15) is opened at the bottom of the groove corresponding to the position of the drill bit of the drilling execution host (6).

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