Multifunctional adaptive brake disc machining clamp

Abstract

The utility model relates to the technical field of clamp, concretely to multifunctional self -adaptation brake disc processing clamp, including the base of the brake disc to be processed that top end lap, the positioning and clamping mechanism of inside bushing is equipped in the base middle part, the positioning and clamping mechanism includes fixed bottom cover, movable column, pressure cover and pressure disc, is equipped with the vertical rod in fixed bottom cover, the top of vertical rod is the threaded end, and the pressure disc is connected in screw thread with threaded end, and the top of movable column is equipped with the positioning taper head, and the bottom end inside bushing of movable column is equipped with the abutment spring, and the pressure cover bushing is in the top outside of vertical rod, and the bottom end of pressure cover is used to with the top surface of brake disc abut. The brake disc processing clamp, through making the positioning taper head of movable column top end form stable contact with brake disc center hole bottom surface under the elastic support of abutment spring, ensure that brake disc axle and positioning taper head axle coincide, realized accurate positioning based on center hole, and through rotating pressure disc, utilize its thread connection with vertical rod threaded end, can fast realize the compression and loosening of brake disc.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, specifically a multifunctional adaptive brake disc machining fixture. Background Technology

[0002] Brake discs are a key component of vehicle braking systems, and their machining accuracy directly affects driving safety. With the development of the automotive industry, the performance requirements for brake discs are constantly increasing. Machining fixtures, as important equipment to ensure the machining accuracy and efficiency of brake discs, play an indispensable role in the manufacturing process.

[0003] Utility model patent CN219444266U discloses a brake disc processing fixture. This fixture includes a support mechanism for supporting the brake disc; and three clamping mechanisms, each located on the upper surface of the support mechanism, for clamping the brake disc. The support mechanism includes a base with a rotating assembly inside. The rotating assembly includes a motor, and the motor's output end has a reducer. A rotating table is located on the side of the reducer away from the motor, and a magnet is embedded in the upper surface of the rotating table. This invention relates to the field of brake disc manufacturing technology. When the rotating assembly is turned on, it rotates the brake disc, and the rotation angle can be set, allowing for rapid movement of the area to be processed within the brake disc to a suitable position. The magnet on the upper surface of the rotating assembly attracts the brake disc, preventing deviation during rotation.

[0004] However, this brake disc machining fixture relies solely on the magnets on the upper surface of the rotary table to attract the brake disc. The magnetic attraction is easily affected by external factors, and the magnets lack precise positioning of the brake disc's center hole, causing the brake disc to easily shift during machining, making it difficult to guarantee machining accuracy. Furthermore, during use, the first and second nuts must be loosened and tightened repeatedly to adjust the screw position and complete the clamping and unclamping of the brake disc. When machining a large number of brake discs, this process must be repeated, resulting in numerous steps and a long processing time. Therefore, we propose a multi-functional adaptive brake disc machining fixture. Utility Model Content

[0005] The purpose of this invention is to provide a multifunctional adaptive brake disc machining fixture to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multifunctional adaptive brake disc processing fixture includes a base, on which a brake disc to be processed is attached to the top of the base. A positioning and clamping mechanism for locking the brake disc is sleeved in the middle of the base. The positioning and clamping mechanism includes a fixed bottom sleeve fixed at the bottom of the base, a movable column sleeved in the fixed bottom sleeve and slidably connected to the fixed bottom sleeve, a pressure sleeve abutting against the middle of the top of the brake disc, and a pressure plate pressing down on the pressure sleeve.

[0008] A vertical rod is fixedly provided on the inner bottom wall of the fixed base sleeve. The top of the vertical rod passes through the movable column, the pressure sleeve and the pressure plate in sequence. The top of the vertical rod is a threaded end. The movable column and the pressure sleeve are slidably connected to the vertical rod, and the pressure plate is threadedly connected to the threaded end.

[0009] The top of the movable column is provided with a tapered positioning cone. The top of the upright slides through the inner side of the positioning cone. The tapered surface of the positioning cone can abut against the center hole of the bottom surface of the brake disc. A retaining spring is sleeved inside the bottom end of the movable column.

[0010] The pressure sleeve is fitted onto the top outer side of the upright, and the bottom end of the pressure sleeve is used to abut against the top surface of the brake disc.

[0011] Preferably, a sleeve hole is provided at the middle position of the base, and the fixed bottom sleeve is fitted onto the bottom of the sleeve hole and fixedly connected to the base.

[0012] In this configuration, the fixed connection between the sleeve hole and the fixed base sleeve provides a stable mounting foundation for the positioning and clamping mechanism, ensuring the accuracy of the relative positions of each component.

[0013] Preferably, the bottom end of the movable column is provided with a bottom column, the top surface of the fixed bottom sleeve is provided with a movable cavity, the bottom of the upright is fixedly connected to the center of the inner bottom wall of the movable cavity, the bottom column is sleeved in the movable cavity and slidably connected to the bottom column, the top end of the fixed bottom sleeve is provided with a top cover, and the movable column slides through the middle of the top cover.

[0014] In this configuration, the sliding fit between the base column and the movable cavity allows the movable column to move flexibly, while the top cover limits the movable column to ensure stable operation during work and prevent it from detaching from the fixed base sleeve.

[0015] Preferably, the bottom end of the movable column has a sleeve cavity, and the abutment spring is sleeved in the sleeve cavity.

[0016] In this configuration, the sleeve cavity serves to position and protect the abutment spring, which in turn provides elastic support for the movable column, ensuring continuous and tight contact between the positioning cone and the center hole of the brake disc.

[0017] Preferably, the pressure sleeve has a frustum structure with a smaller top and a larger bottom, and a cavity is provided at the bottom end of the pressure sleeve, into which the positioning cone extends.

[0018] In this design, the frustum-shaped pressure sleeve increases the contact area with the brake disc, making the pressure distribution more uniform, and the cavity provides space for the positioning cone to move, avoiding interference between the two.

[0019] Preferably, a threaded hole is provided at the middle position of the pressure plate, and the threaded end passes through the threaded hole and is threadedly connected to the pressure plate.

[0020] In this setting, the downward stroke of the pressure plate can be precisely controlled by the threaded engagement between the threaded hole and the threaded end, thereby achieving precise adjustment of the clamping force of the pressure sleeve and adapting to brake discs of different thicknesses.

[0021] Preferably, the pressure plate is installed and removed from the threaded end by means of a retainer. The bottom end of the retainer is provided with several slots, and the top end of the pressure plate is provided with several protrusions that match the size of the slots. By fitting the retainer onto the top end of the pressure plate, the protrusions can be inserted into the slots for connection.

[0022] In this configuration, the interlocking of the slot and the protrusion enables quick loading and unloading of the pressure plate, reduces the need for screwing, improves clamping efficiency, and ensures the stability of the pressure plate after installation.

[0023] Preferably, a pair of symmetrical grip handles are fixed on the outer surface of the card sleeve.

[0024] In this design, the handle provides the operator with a point of leverage, making it easier to manipulate the ferrule, reducing the difficulty of loading and unloading the pressure plate, and improving the convenience of use.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] 1. This multi-functional adaptive brake disc machining fixture, through its positioning and clamping mechanism, allows the brake disc to be placed on the base. The tightening of the pressure plate drives the pressure sleeve downwards, pressing the brake disc tightly against the top of the base. During this process, the positioning cone at the top of the movable column, supported by the elastic spring, forms stable contact with the bottom surface of the brake disc's center hole, ensuring strict alignment between the brake disc's axis and the positioning cone's axis. This achieves precise positioning based on the center hole, effectively eliminating accuracy loss caused by positioning deviations during machining.

[0027] 2. This multi-functional adaptive brake disc processing fixture can quickly clamp and release the brake disc by rotating the pressure plate and using its threaded connection with the threaded end of the upright. This simplifies the operation process and saves clamping and disassembly time. It is especially suitable for mass production of brake discs and effectively improves production efficiency. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0030] Figure 3 This is a schematic diagram of the base structure in this utility model;

[0031] Figure 4 This is an exploded view of the positioning and clamping mechanism in this utility model;

[0032] Figure 5 This is a cross-sectional view of the movable column in this utility model;

[0033] Figure 6 This is a cross-sectional view of the pressure sleeve in this utility model;

[0034] Figure 7 This is a schematic diagram of the structure of the pressure plate in this utility model;

[0035] Figure 8 This is a schematic diagram illustrating the use of the card sleeve in this utility model;

[0036] Figure 9 This is a schematic diagram of the bottom of the card sleeve in this utility model;

[0037] The meanings of the labels in the diagram are as follows:

[0038] 100. Base; 110. Sleeve;

[0039] 200. Brake disc;

[0040] 300. Positioning and clamping mechanism; 310. Fixed base sleeve; 311. Movable cavity; 312. Upright rod; 313. Threaded end; 314. Top cover; 320. Movable column; 321. Positioning cone; 322. Base column; 323. Sleeve cavity; 324. Abutment spring; 330. Pressure sleeve; 331. Clear cavity; 340. Pressure plate; 341. Threaded hole; 342. Protrusion;

[0041] 400, Card sleeve; 410, Card slot; 420, Grip handle. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0043] Example 1

[0044] Please see Figures 1-7 A multifunctional adaptive brake disc processing fixture includes a base 100, with a brake disc 200 to be processed overlapping the top of the base 100. A positioning and clamping mechanism 300 for locking the brake disc 200 is sleeved inside the middle of the base 100. The positioning and clamping mechanism 300 includes a fixed bottom sleeve 310 fixed at the bottom of the middle of the base 100, a movable column 320 sleeved inside the fixed bottom sleeve 310 and slidably connected to the fixed bottom sleeve 310, a pressure sleeve 330 abutting against the middle of the top of the brake disc 200, and a pressure plate 340 pressing the pressure sleeve 330 downward.

[0045] In use, the positioning and clamping mechanism 300 is set to lock and position the brake disc 200. The fixed base sleeve 310 provides a stable mounting base for other components. The movable column 320, the pressure sleeve 330 and the pressure plate 340 cooperate with each other and can be adjusted according to the size of the brake disc and processing requirements to ensure the stability of the brake disc during processing.

[0046] like Figure 2 and Figure 3 As shown, in this utility model, a sleeve hole 110 is provided at the middle position of the base 100, and a fixing bottom sleeve 310 is sleeved on the bottom of the sleeve hole 110 and fixedly connected to the base 100. The matching design of the sleeve hole 110 and the fixing bottom sleeve 310 allows the positioning and clamping mechanism 300 to be stably installed in the base 100, ensuring that the entire clamping structure is compact and providing reliable support for the subsequent positioning and clamping of the brake disc 200.

[0047] like Figure 2 , Figure 4 and Figure 5As shown, specifically, the bottom end of the movable column 320 is provided with a bottom column 322, and the top surface of the fixed bottom sleeve 310 is provided with a movable cavity 311. The bottom of the upright rod 312 is fixedly connected to the center of the inner bottom wall of the movable cavity 311. The bottom column 322 is sleeved in the movable cavity 311 and is slidably connected to the fixed bottom sleeve 310, so that the bottom column 322 can move up and down flexibly within the fixed bottom sleeve 310. A top cover 314 is installed at the top of the fixed bottom sleeve 310, and the movable column 320 slides through the middle of the top cover 314. The top cover 314 serves to limit and protect the movable column 320, preventing it from detaching from the fixed bottom sleeve 310 and ensuring the stable operation of the movable column 320 during the positioning and clamping of the brake disc 200.

[0048] like Figure 2 , Figures 4-7 As shown, further, a vertical rod 312 is fixedly provided on the inner bottom wall of the fixed base sleeve 310. The top of the vertical rod 312 passes through the movable column 320, the pressure sleeve 330 and the pressure plate 340 in sequence. The vertical rod 312 serves as a through support for the movable column 320, the pressure sleeve 330 and the pressure plate 340, providing motion guidance for each component.

[0049] The top of the upright 312 is a threaded end 313. The movable column 320 and the pressure sleeve 330 are both slidably connected to the upright 312. A threaded hole 341 is provided in the middle of the pressure plate 340. The threaded end 313 passes through the threaded hole 341 and is threadedly connected to the pressure plate 340. Through the slidable connection between the movable column 320 and the pressure sleeve 330 and the upright 312, and the threaded connection between the pressure plate 340 and the threaded end 313, precise control of the clamping force of the pressure sleeve 330 is achieved, thereby stably clamping brake discs 200 of different thicknesses.

[0050] like Figure 2 , Figure 4 and Figure 5 As shown, the top of the movable column 320 is provided with a tapered positioning cone 321. The top of the upright 312 slides through the inner side of the positioning cone 321. The tapered surface of the positioning cone 321 can abut against the center hole of the bottom surface of the brake disc 200. The positioning cone 321 cooperates with the center hole of the brake disc 200 to achieve precise positioning of the brake disc.

[0051] A retaining spring 324 is fitted inside the bottom end of the movable column 320. A cavity 323 is formed at the bottom end of the movable column 320, and the retaining spring 324 is fitted inside the cavity 323. The top of the spring 324 abuts against the bottom end face of the positioning cone 321, and the bottom of the spring 324 abuts against the inner bottom wall of the movable cavity 311. The retaining spring 324 provides elastic support for the movable column 320, ensuring that the positioning cone 321 always maintains contact with the center hole of the brake disc, compensating for minor displacements caused by brake disc dimensional tolerances or during processing, and further improving the reliability of positioning.

[0052] like Figure 6 As shown, it is worth noting that the pressure sleeve 330 is fitted onto the top outer side of the upright 312, and the bottom end of the pressure sleeve 330 is used to abut against the top surface of the brake disc 200. The pressure sleeve 330 has a frustum structure that is smaller at the top and larger at the bottom. The frustum structure design of the pressure sleeve 330 increases the contact area with the brake disc 200, which can evenly transmit the pressure applied by the pressure disc 340 and avoid excessive local stress on the brake disc.

[0053] Preferably, the bottom end of the pressure sleeve 330 is provided with a cavity 331, into which the positioning cone 321 extends. The cavity 331 provides space for the positioning cone 321 to move, ensuring that the positioning cone 321 can properly mate with the center hole of the brake disc, while preventing interference between the pressure sleeve 330 and the positioning cone 321.

[0054] In this embodiment, the multifunctional adaptive brake disc machining fixture is used as follows: First, the brake disc 200 to be machined is placed on the top of the base 100, at which point the center hole of the brake disc 200 abuts against the conical surface of the positioning cone 321. Then, the pressure sleeve 330 is placed on the top of the brake disc 200, so that the top of the upright 312 passes through the pressure sleeve 330, and the positioning cone 321 extends into the clearance cavity 331. Afterward, the pressure plate 340 is fitted onto the threaded end 313 of the upright 312 and connected to the threaded end through the threaded hole 341. The brake disc 200 is connected by a threaded connection at end 313. Next, the pressure plate 340 is rotated, causing it to move downwards along the threaded end 313 and drive the pressure sleeve 330 to press the brake disc 200 against the top of the base 100. During this process, the movable column 320 moves downwards under the pressure of the brake disc. At this time, the abutment spring 324 is compressed, and the positioning cone 321, under the action of the abutment spring 324, remains pressed against the bottom of the center hole of the brake disc 200, achieving positioning and clamping of the brake disc. Finally, after the brake disc is positioned and clamped, machining operations can be performed. After machining, the pressure plate 340 is rotated in the opposite direction to loosen the pressure sleeve 330, and the pressure plate 340 and pressure sleeve 330 are removed from the threaded end 313 in sequence. The brake disc 200 can then be removed from the upright 312 to prepare for the clamping of the next brake disc 200.

[0055] Example 2

[0056] To facilitate the loading and unloading of pressure plate 340, such as Figures 7-9 As shown, the pressure plate 340 is installed and removed from the threaded end 313 by means of the ferrule 400. The bottom end of the ferrule 400 is provided with several slots 410, and the top end of the pressure plate 340 is provided with several protrusions 342 that match the size of the slots 410. By fitting the pressure plate 340 onto the top end of the upright 312, the protrusions 342 can be inserted into the slots 410 for connection. A pair of symmetrical grip handles 420 are fixed on the outer surface of the ferrule 400.

[0057] In this embodiment, a quick-connect structure is constructed through the insertion and engagement of the slot 410 and the protrusion 342. This allows the mounting and dismounting of the pressure plate 340 on the threaded end 313 to be completed quickly without repeated twisting, simply by inserting and unplugging, effectively saving operation time. The grip 420 provides a point of leverage for the operator. When installing and removing the ferrule 400, the operator can precisely control the position and force of the ferrule 400 by gripping the grip 420, reducing operational difficulty and improving convenience and comfort during use. This is particularly suitable for high-frequency mounting and dismounting scenarios in the mass production of brake discs 200.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multifunctional adaptive brake disc machining fixture, characterized in that: The device includes a base (100), on which a brake disc (200) to be processed is attached. A positioning and clamping mechanism (300) for locking the brake disc (200) is sleeved in the middle of the base (100). The positioning and clamping mechanism (300) includes a fixed bottom sleeve (310) fixed at the bottom of the middle of the base (100), a movable column (320) sleeved in the fixed bottom sleeve (310) and slidably connected to the fixed bottom sleeve (310), a pressure sleeve (330) abutting the middle of the top of the brake disc (200), and a pressure plate (340) pressing the pressure sleeve (330) downward. A vertical rod (312) is fixedly provided on the inner bottom wall of the fixed base sleeve (310). The top of the vertical rod (312) passes through the movable column (320), the pressure sleeve (330) and the pressure plate (340) in sequence. The top of the vertical rod (312) is a threaded end (313). The movable column (320) and the pressure sleeve (330) are slidably connected to the vertical rod (312). The pressure plate (340) is threadedly connected to the threaded end (313). The top of the movable column (320) is provided with a conical positioning cone (321), the top of the upright (312) slides through the inner side of the positioning cone (321), the conical surface of the positioning cone (321) can abut against the center hole of the bottom surface of the brake disc (200), and the bottom end of the movable column (320) is fitted with an abutment spring (324). The pressure sleeve (330) is sleeved on the top outer side of the upright (312), and the bottom end of the pressure sleeve (330) is used to abut against the top surface of the brake disc (200).

2. The multifunctional adaptive brake disc machining fixture according to claim 1, characterized in that: A sleeve hole (110) is provided at the middle position of the base (100), and the fixed bottom sleeve (310) is sleeved at the bottom of the sleeve hole (110) and fixedly connected to the base (100).

3. The multifunctional adaptive brake disc machining fixture according to claim 1, characterized in that: The bottom end of the movable column (320) is provided with a bottom column (322), and the top surface of the fixed bottom sleeve (310) is provided with a movable cavity (311). The bottom of the upright (312) is fixedly connected to the center of the inner bottom wall of the movable cavity (311). The bottom column (322) is sleeved in the movable cavity (311) and slidably connected to the bottom column (322). The top end of the fixed bottom sleeve (310) is equipped with a top cover (314), and the movable column (320) slides through the middle of the top cover (314).

4. The multifunctional adaptive brake disc machining fixture according to claim 1, characterized in that: The bottom end of the movable column (320) is provided with a sleeve cavity (323), and the abutment spring (324) is sleeved in the sleeve cavity (323).

5. The multifunctional adaptive brake disc machining fixture according to claim 1, characterized in that: The pressure sleeve (330) has a frustum structure with a smaller top and a larger bottom. A cavity (331) is provided at the bottom end of the pressure sleeve (330), and the positioning cone (321) extends into the cavity (331).

6. The multifunctional adaptive brake disc machining fixture according to claim 1, characterized in that: A threaded hole (341) is provided at the middle position of the pressure plate (340), and the threaded end (313) passes through the threaded hole (341) and is threadedly connected to the pressure plate (340).

7. The multifunctional adaptive brake disc machining fixture according to claim 1, characterized in that: The pressure plate (340) is installed and removed from the threaded end (313) by means of a retainer (400). The bottom end of the retainer (400) is provided with several slots (410), and the top end of the pressure plate (340) is provided with several protrusions (342) that match the size of the slots (410). By fitting the retainer (400) onto the top end of the pressure plate (340), the protrusions (342) can be inserted into the slots (410) for connection.

8. The multifunctional adaptive brake disc machining fixture according to claim 7, characterized in that: A pair of symmetrical grip handles (420) are fixed on the outer surface of the sleeve (400).

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