A machining device for a support of a brake caliper of a motor vehicle

Abstract

The application discloses a machining device for automobile brake caliper support and relates to the technical field of automobile brake caliper support.The automatic telescopic rod is rotated, the end portion of the automatic telescopic rod drives the cross-round wheel cam to synchronously rotate, the cross-round wheel cam drives the moving plate to linear reciprocating slide along the first fixed groove of the base, and then the supporting frame is driven to left-right slight shaking in the horizontal direction, so that the clamping groove in the supporting frame and the outer contour of the brake caliper support are completely matched in the dynamic movement, the step of repeatedly adjusting the position of the brake caliper support by manual work is replaced, automatic alignment is realized, the rotation degree of the cross-round wheel cam can drive the sliding clamping block to complete twice reciprocating movement, the alignment action is completed in a very short time, the clamping auxiliary time is shortened, the machining pace of the whole production line is improved, the slight shaking alignment mode does not depend on the accurate initial placement position of the workpiece, and even if the workpiece has certain initial deviation, the deviation can also be automatically eliminated through self-adaptive shaking.

Description

Technical Field

[0001] This invention relates to the field of automotive brake caliper bracket technology, and more particularly to a processing apparatus for automotive brake caliper brackets. Background Technology

[0002] The brake caliper mount is a key load-bearing component in a car's disc brake system. It is mounted on the steering knuckle or wheel hub to provide a stable mounting platform for the brake caliper, ensuring that the brake caliper and brake pads are in the correct position and spacing. The mount usually has a complex geometry, containing multiple mounting holes, guide grooves, and mating surfaces. Therefore, it requires comprehensive processing through multiple steps such as broaching, drilling, and tapping during manufacturing.

[0003] The operator places the blank on the contact surface of the fixture, drives the pressure plate with a cylinder to rigidly fix the workpiece, rotates the worktable to index, and sends the workpiece to the broaching station and the drilling and tapping station in sequence for cutting. After the machining is completed, the pressure plate is released and the finished product is taken out. The rigid pressure plate can provide a strong clamping force to ensure that the workpiece does not shift during heavy cutting (such as broaching).

[0004] In the current machining of automotive brake caliper brackets, a certain gap is usually reserved between the positioning contact surface and the bracket to ensure that the bracket can be smoothly placed into the fixture contact surface. Although this gap helps to reduce the difficulty of loading, it also causes the bracket to not be able to fully fit with the fixture contact surface after initial placement. At the same time, the fixture directly and rigidly clamps the bracket, causing a large contact friction force between the side of the bracket and the contact surface of the fixture. The friction force increases accordingly. When the equipment determines that the clamping state has been reached, the bracket is actually blocked by the friction force and cannot continue to feed. The increase in friction force causes the bracket to get stuck in the initial placement position, affecting the accuracy of subsequent bracket machining (such as static friction lock-up). In the brake caliper bracket fixture, the rigid clamping causes the normal pressure between the side of the bracket and the contact surface of the fixture to increase continuously, and the static friction force increases accordingly, eventually exceeding the feed thrust, causing the bracket to not be able to fully fit with the contact surface of the fixture.

[0005] To ensure clamping stability, after placing the bracket, the operator needs to manually shake the bracket left and right based on experience to break the static friction between the bracket and the clamping surface. This prevents the bracket from locking with the clamping surface due to static friction and failing to self-fit, allowing the bracket to slide again and eventually fully fit with the clamping surface. Although this method can meet basic processing requirements, repeated manual adjustments during continuous processing not only increase the operator's workload but also make it difficult to guarantee positioning accuracy and processing consistency.

[0006] To address the aforementioned issues, there is an urgent need for innovative designs based on existing automotive brake caliper brackets. Summary of the Invention

[0007] The present invention addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. The present invention provides a processing device for automotive brake caliper brackets to solve the technical problem that when the clamp is rigidly held, the static friction between the side of the bracket and the contact surface of the clamp increases with the clamping force, causing the bracket to be unable to continue feeding due to excessive friction, thus affecting the processing accuracy.

[0008] The present invention adopts the following technical solution: a processing device for automotive brake caliper brackets, comprising a base, a support frame disposed inside the base, and pressing plates disposed on both sides inside the base, and further comprising... An adaptive wobbling alignment mechanism is located at the end of the outer wall of the pressing plate. By rotating the pressing plate, it promotes the support frame to wobble slightly from side to side and automatically fit and align with the outer side of the car brake caliper bracket. The adaptive wobbling alignment mechanism includes a cam with a cross-shaped rounded corner section, a sliding plate sleeved on the outside of the cam, and an elastic element.

[0009] Preferably, multiple bases are equidistantly arranged on the top of the disc conveyor, and an electric clamp is installed above the bases.

[0010] Preferably, the support frame is equipped with fixing columns on both sides, and the fixing columns are located on the inner side of the base.

[0011] Preferably, the pressing plate is installed at the end of the telescopic column, the telescopic column is connected to the output end of the automatic telescopic rod, and the automatic telescopic rod is connected to the motor through a conductive slip ring.

[0012] Preferably, the cam consists of a ring and a connecting plate fixed to the end of the outer wall of the automatic telescopic rod, and slide rail grooves similar to the outer contour of the cam are opened on both sides of the cam.

[0013] Preferably, the outer side of the movable plate is provided with a sliding block adapted to the slide rail groove, and the movable plate is disposed inside the first fixed groove.

[0014] Preferably, the first fixing groove is formed on the inner side of the base, and the sliding groove is formed on the inner side of the movable plate.

[0015] Preferably, the sliding block and the slide rail groove are slidably connected, and the moving plate and the first fixed groove are slidably connected.

[0016] Preferably, a movable block is provided at the center of the inside of the slide, and the movable block is installed on the outside of the support frame.

[0017] Preferably, the elastic element consists of a first spring disposed between the fixed column and the inner side of the base and a second spring disposed on both sides of the slide groove, wherein the stiffness coefficient of the first spring is greater than that of the second spring.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: Firstly, when the automatic telescopic rod rotates, its end drives the cross-shaped rounded corner wheel cam to rotate synchronously. The cross-shaped rounded corner wheel cam drives the moving plate to slide back and forth in a straight line along the first fixed groove of the base, thereby causing the support frame to sway slightly left and right in the horizontal direction. This allows the slot in the support frame to fit perfectly with the outer contour of the brake caliper bracket during dynamic movement, replacing the step of manually adjusting the position of the brake caliper bracket and achieving automatic alignment. Moreover, the rotation of the cross-shaped rounded corner wheel cam can drive the sliding block to complete two reciprocating movements. The alignment action is completed in a very short time, shortening the clamping auxiliary time and improving the processing cycle of the entire production line. In addition, the micro-sway alignment method does not rely on the precise initial placement position of the workpiece. Even if the workpiece has a certain initial offset, the adaptive sway can avoid the static friction lock-up phenomenon between the contact surface of the slot and the brake caliper bracket, allowing the bracket to slide smoothly and finally fit completely with the slot.

[0019] Secondly, during the alignment and shaking process, if the brake caliper bracket and the support frame reach a contact state within two shaking movements, the support frame will generate a contact reaction force when it continues to push. At this time, a double spring mechanism is used for adjustment: the first spring located on both sides of the support frame provides a restoring force to ensure that the brake caliper bracket can be stably kept in the center position after fitting, preventing it from shifting or slipping out. The second spring located inside the moving plate uses its elastic potential energy to absorb and offset the relative force generated between the support frame and the brake caliper bracket due to hard contact, while buffering part of the elastic force of the first spring to avoid damage to the workpiece surface caused by rigid impact. The two work together to ensure that the support frame can maintain a stable centered position after alignment and fitting, and effectively buffer the contact impact, achieving an adaptive alignment effect of "rigid positioning and flexible contact", thus achieving alignment accuracy and workpiece protection. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the base of the present invention; Figure 3 This is a partial three-dimensional cross-sectional structural diagram of the base of the present invention; Figure 4 This is a frontal three-dimensional structural diagram of the pressing plate of the present invention; Figure 5 This is a rear three-dimensional structural diagram of the pressing plate of the present invention; Figure 6 This is a schematic diagram of the partial explosion three-dimensional structure of the present invention; Figure 7 This is a frontal three-dimensional structural schematic diagram of the support frame of the present invention; Figure 8 This is a frontal three-dimensional structural schematic diagram of the adaptive shaking alignment mechanism of the present invention; Figure 9 This is a frontal three-dimensional exploded view of the adaptive shaking alignment mechanism of the present invention.

[0022] Figure label: 1. Disc conveyor; 2. Base; 21. Electric clamp; 3. Support frame; 31. Moving block; 5. Pressing plate; 51. Automatic telescopic rod; 52. Motor; 6. Cam; 7. Moving plate; 71. Sliding block. Detailed Implementation

[0023] 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.

[0024] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0025] 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.

[0026] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] The following is combined with Figures 1 to 9 As shown, this embodiment of the invention provides a processing device for automotive brake caliper brackets, including a base 2, a support frame 3 disposed inside the base 2, and pressing plates 5 disposed on both sides inside the base 2, and also includes... An adaptive wobbling alignment mechanism is located at the end of the outer wall of the pressing plate 5. By rotating the pressing plate 5, the support frame 3 is wobbled slightly from left to right and automatically fits and aligns with the outer side of the car brake caliper bracket. The adaptive wobbling alignment mechanism includes a cam 6 with a cross-shaped rounded corner section, a movable plate 7 sleeved on the outside of the cam 6, and an elastic element.

[0029] As an optional embodiment, the cam 6 is rotated synchronously by rotating the pressing plate 5. Since the outer contour of the cam 6 is a cross-shaped rounded section, when it rotates, it drives the moving plate 7 to make left and right linear reciprocating motion through the interlocking of the outer contour with the moving plate 7, thereby causing the support frame 3 to sway slightly left and right, so that the support frame 3 and the car brake caliper bracket automatically fit and align. By using cam 6 and moving plate 7, the rotary motion is converted into linear reciprocating motion, eliminating the need for additional pneumatic devices, thus reducing equipment costs and maintenance difficulty. At the same time, the micro-shaking alignment method requires no manual intervention, improving alignment efficiency and processing consistency. The elastic force of the elastic element ensures that the support frame 3 can quickly return to center and remain stable after alignment. At the same time, it can also absorb the impact force when the support frame 3 contacts the brake caliper bracket, preventing damage to the workpiece surface.

[0030] Multiple bases 2 are equidistantly arranged on the top of the disc conveyor 1, and an electric clamp 21 is installed above the bases 2.

[0031] As an optional embodiment, the disc conveyor 1 is equipped with three stations, namely the loading and unloading station, the broaching station and the drilling and tapping station. The disc conveyor 1 rotates by a fixed angle each time to send the car brake caliper bracket from the current station to the next station, so that the car brake caliper bracket can complete the processing of each process in sequence after one clamping, realizing multi-process continuous processing. The multi-station turntable layout allows for simultaneous and parallel processing at each station, shortening the processing cycle of a single automotive brake caliper bracket. All processes can be completed in a single clamping operation, avoiding positioning errors caused by multiple clamping operations and improving processing accuracy and production efficiency.

[0032] The support frame 3 has fixed columns installed on both sides, and the fixed columns are located on the inside of the base 2.

[0033] The cam 6 consists of a ring and a connecting plate fixed to the end of the outer wall of the automatic telescopic rod 51. Slide rail grooves similar to the outer contour of the cam 6 are opened on both sides of the cam 6.

[0034] As an optional embodiment, after the car brake caliper bracket is placed on the support frame 3, the motors 52 on both sides are started through the control panel, which drive the automatic telescopic rod 51 and the pressing plate 5 to rotate inward by 180 degrees, limiting the brake caliper bracket within the safe operating range. At the same time, the pressing plate 5 rotates 180 degrees, which drives the cam 6 fixed by the connecting plate to rotate 180 degrees synchronously. Since the slide rail grooves on both sides of the cam 6 are adapted to the moving plate 7, the cam 6 periodically squeezes the moving plate 7 during the rotation, driving the moving plate 7 to move back and forth twice. The two back and forth movements can make the car brake caliper bracket and the support frame 3 completely fit and align. The cam 6 can drive the moving plate 7 to reciprocate twice by rotating 180 degrees. The transmission efficiency is high, the alignment action is completed quickly, and the clamping auxiliary time is shortened.

[0035] The outer side of the movable plate 7 is provided with a sliding block 71 that is adapted to the slide rail groove, and the movable plate 7 is located inside the first fixed groove.

[0036] As an optional embodiment, when the cam 6 rotates, the sliding block 71 slides inside the slide rail groove and limits the moving plate 7 through the first fixed groove, restricting it to move only in the left and right directions, thereby converting the rotational motion of the cam 6 into the linear reciprocating motion of the moving plate 7, which in turn drives the support frame 3 to sway back and forth. The limiting design of the first fixed groove ensures that the movement trajectory of the moving plate 7 is precise and controllable, avoiding swaying and jamming during the movement process.

[0037] The first fixing groove is opened on the inner side of the base 2, and the sliding groove is opened on the inner side of the movable plate 7.

[0038] The sliding block 71 is slidably connected to the slide rail groove, and the moving plate 7 is slidably connected to the first fixed groove.

[0039] A movable block 31 is provided in the center of the chute, and the movable block 31 is installed on the outside of the support frame 3.

[0040] The elastic element consists of a first spring located between the fixed column and the inner side of the base 2, and a second spring located on both sides of the slide groove. The spring constant of the first spring is greater than that of the second spring.

[0041] As an optional embodiment, when the movable plate 7 pushes the movable block 31 and the support frame 3, it first compresses the second spring. Only after the elastic force of the second spring is overcome can the movable plate 7 push the support frame 3 to produce displacement. Since the first spring provides a certain elastic resistance, and the elastic buffering effect of the second spring can offset the impact force between the car brake caliper bracket and the support frame 3, rigid collision is avoided. The elastic buffer of the second spring effectively absorbs the impact energy of the contact between the car brake caliper bracket and the support frame 3, preventing the workpiece surface from being damaged by rigid collision and protecting the quality of the machined surface of the car brake caliper bracket. Through the elastic recovery of the first spring, the support frame 3 remains centered after it is fitted and aligned with the car brake caliper bracket, preventing the workpiece from being misaligned and causing adverse effects on the machining accuracy. The first spring can automatically return the support frame 3 to the center position. The support frame 3 can be automatically reset by relying on elasticity. At the same time, the centering function effectively eliminates the small displacement of the workpiece during the processing and ensures the stability of the processing quality.

[0042] Working principle: When in use, the operator places the brake caliper bracket into the preset slot on the support frame 3 to complete the initial engagement.

[0043] Start the motors 52 on both sides, drive the automatic telescopic rod 51 to rotate the pressing plate 5 inward by 180 degrees, and limit the brake caliper bracket within the safe operating range. At this time, the pressing plate 5 and the outer side of the brake caliper bracket maintain a small gap. This gap can prevent the brake caliper bracket from falling off and also reserve room for subsequent adaptive swaying alignment. At the same time, start the electric clamp 21 of the lifting component, so that its bottom is lowered above the brake caliper bracket, also maintaining a small gap to avoid interfering with the subsequent alignment action.

[0044] While the automatic telescopic rod 51 rotates, its end drives the cross-shaped rounded corner wheel cam 6 to rotate synchronously. By utilizing the interlocking and engaging of the inner slide rail groove of the cross-shaped rounded corner wheel cam 6 with the inner side of the sliding block 71, the rotational motion is converted into linear reciprocating motion. This drives the moving plate 7 connected to the sliding block 71 to slide linearly back and forth along the first fixed groove of the base 2. The movement of the moving plate 7 then causes the support frame 3 to sway slightly left and right in the horizontal direction, so that the slot in the support frame 3 and the outer contour of the brake caliper bracket fit perfectly in dynamic motion. This process replaces the step of manually adjusting the workpiece position repeatedly, realizing automatic alignment.

[0045] After alignment, the automatic telescopic rod 51 retracts, causing the pressing plate 5 to press tightly against the outside of the brake caliper bracket. The electric clamp 21 of the top clamping mechanism presses down to fix the top of the brake caliper bracket, and the brake caliper bracket is completely locked and fixed. Then, the turntable conveyor 1 is started to rotate 120 degrees to transport the clamped workpiece to the broaching machine station for processing. After processing, it continues to flow to the drilling and tapping integrated machine for subsequent processes. Finally, it returns to the initial position, all components are reset, and the workpiece is unloaded manually.

[0046] During the alignment shaking process, if the brake caliper bracket and support frame 3 reach a contact state within two shaking cycles, the support frame 3 will generate a contact reaction force when it continues to push, which is adjusted through a double spring mechanism: Centering: The first springs located on both sides of the support frame 3 provide a restoring force to ensure that the brake caliper bracket can be stably kept in the center position after fitting, preventing slippage.

[0047] Flexible buffer: The second spring located inside the moving plate 7 uses its elastic potential energy to absorb and offset the relative force generated by the hard contact between the support frame 3 and the brake caliper bracket, while buffering part of the elastic force of the first spring to avoid rigid impact.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A processing device for automotive brake caliper brackets, comprising a base (2), a support frame (3) disposed inside the base (2), and pressing plates (5) disposed on both sides inside the base (2), characterized in that: Also includes An adaptive swaying alignment mechanism is located at the end of the outer wall of the pressing plate (5). By rotating the pressing plate (5), the support frame (3) is swayed slightly left and right and automatically fits and aligns with the outer side of the car brake caliper bracket. The adaptive wobbling alignment mechanism includes a cam (6) with a cross-shaped rounded corner section, a movable plate (7) sleeved on the outside of the cam (6), and an elastic element.

2. The processing device for an automotive brake caliper bracket according to claim 1, characterized in that: Multiple bases (2) are equidistantly arranged on the top of the disc conveyor (1), and an electric clamp (21) is installed above the bases (2).

3. The processing device for an automotive brake caliper bracket according to claim 1, characterized in that: The support frame (3) is equipped with fixing columns on both sides, and the fixing columns are located on the inner side of the base (2).

4. The processing device for an automotive brake caliper bracket according to claim 1, characterized in that: The pressing plate (5) is installed at the end of the telescopic column, which is connected to the output end of the automatic telescopic rod (51). The automatic telescopic rod (51) is connected to the motor (52) through a conductive slip ring.

5. The processing device for an automotive brake caliper bracket according to claim 1, characterized in that: The cam (6) consists of a ring and a connecting plate fixed to the end of the outer wall of the automatic telescopic rod (51). Slide rail grooves similar to the outer contour of the cam (6) are opened on both sides of the cam (6).

6. The processing device for an automotive brake caliper bracket according to claim 1, characterized in that: The movable plate (7) is provided with a sliding block (71) on the outside of the slide rail groove, and the movable plate (7) is located inside the first fixed groove.

7. The processing apparatus for an automotive brake caliper bracket according to claim 6, characterized in that: The first fixing groove is opened on the inner side of the base (2), and the sliding groove is opened on the inner side of the moving plate (7).

8. The processing apparatus for an automotive brake caliper bracket according to claim 7, characterized in that: The sliding block (71) is slidably connected to the slide rail groove, and the moving plate (7) is slidably connected to the first fixed groove.

9. A processing device for an automotive brake caliper bracket according to claim 7, characterized in that: A movable block (31) is provided in the center of the inside of the chute, and the movable block (31) is installed on the outside of the support frame (3).

10. A processing device for an automotive brake caliper bracket according to claim 1, characterized in that: The elastic element consists of a first spring located between the fixed column and the inner side of the base (2) and a second spring located on both sides of the slide groove, wherein the spring constant of the first spring is greater than that of the second spring.

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