A fixing clamp for brake disc workpieces

Abstract

The utility model provides a kind of fixing clamp of brake disc workpiece, including support plate, fixture pedestal, multiple protruding support parts, pressure mechanism and pneumatic purging assembly, wherein fixture pedestal is set on support plate, and the top end of protruding support part that is set apart on its working plane constitutes the support area of supporting workpiece, and the rest part forms avoidance area;Pressure mechanism adopts power swing arm pressure device, and workpiece is stably pressed on protruding support part by the drive cylinder drive pressure arm;Pneumatic purging assembly includes air hole being opened on protruding support part and spray head being set on support plate, and metal scrap produced in processing process can be effectively removed by two-way purging design.The structure is cooperated by support area and avoidance area, both ensure the stable positioning of workpiece, and provide operating space for scrap cleaning, significantly improve the precision and efficiency of brake disc drilling, especially suitable for high-precision drilling of disc workpieces such as brake disc.

Description

Technical Field

[0001] This utility model relates to a tooling fixture, and more particularly to a fixing fixture for a brake disc workpiece. Background Technology

[0002] In the automotive parts manufacturing industry, brake discs, as critical safety components, directly affect the braking performance of the entire vehicle due to the precision of their drilling. Current brake disc clamping technologies often employ a planar support combined with mechanical clamping, with the workpiece's outer ring in full contact with the clamp. This structure has serious drawbacks: a large amount of aluminum shavings generated during drilling easily remain on the support surface. Due to the lack of effective chip removal space and cleaning mechanisms, aluminum shavings are pressed between the workpiece and the clamp upon re-clamping. Under the high pressure of the clamping mechanism, the aluminum shavings embed into the workpiece surface, forming indentations, resulting in a scrap rate as high as 3%. Simultaneously, the planar support structure of traditional clamps leaves aluminum shavings nowhere to escape, and the immense pressure of the clamping mechanism exacerbates the depth of chip embedding. This fixed support method makes effective cleaning impossible, forcing operators to manually clean the discs frequently, severely impacting production efficiency. These structural defects make traditional clamps unable to meet the stringent requirements of the modern automotive industry for "zero-defect" brake disc surfaces, urgently necessitating a new clamping solution capable of rapid cleaning. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a fixing fixture for a brake disc workpiece, including: a support plate;

[0004] A fixture base is disposed on the support plate, and the fixture base has a working plane for supporting the workpiece;

[0005] Multiple protruding support portions are spaced apart on the working plane of the fixture base, with their top ends forming a support area for supporting the workpiece, and the remaining part of the working plane forming a recessed clearance area relative to the support area.

[0006] A clamping mechanism, disposed on the support plate, is used to clamp the workpiece onto the protruding support portion;

[0007] A pneumatic blowing assembly, mounted on the support plate, is used to clean the area of ​​the protruding support portion.

[0008] Furthermore, the clamping mechanism is a power swing arm clamping device, which includes a drive cylinder and a clamping arm driven by the drive cylinder.

[0009] Furthermore, the pneumatic purging assembly includes a first purging part and a second purging part, wherein the first purging part is a vent hole opened on the protruding support part, and the outlet of the vent hole faces the bottom of the workpiece; the second purging part is disposed on the support plate, and the purging surface faces the outer side of each protruding support part.

[0010] Furthermore, the second purging unit includes a nozzle, an assembly block, and an adapter. The assembly block is mounted on the support plate, the nozzle is disposed on the assembly block, and the adapter is connected to the assembly block to access an air source.

[0011] Furthermore, there are multiple power swing arm clamping devices arranged circumferentially along the clamp base, and a protruding support and a nozzle are provided directly below the clamping position of each clamping arm.

[0012] Furthermore, the drive cylinder is hydraulically driven.

[0013] Furthermore, the support plate is internally machined with hydraulic pipelines for supplying hydraulic medium to the power swing arm clamping device.

[0014] Furthermore, it also includes a flipping drive mechanism, the drive end of which is connected to the side of the support plate, for driving the support plate to flip around a horizontal axis.

[0015] Furthermore, multiple clamp bases are arranged side by side on the support plate, and each clamp base is provided with a corresponding power swing arm clamping device and a pneumatic purging assembly.

[0016] Furthermore, the clamp base is a ring structure, and the plurality of protruding support portions are evenly spaced along its circumference.

[0017] This invention provides a fixing fixture for brake disc workpieces, including a support plate, a fixture base, multiple protruding support parts, a clamping mechanism, and a pneumatic blowing assembly. The fixture base is mounted on the support plate, and the tops of the protruding support parts spaced apart on its working plane form a support area for the workpiece, while the remaining parts form a clearance area. The clamping mechanism uses a power swing arm clamping device, which drives the clamping arm via a drive cylinder to stably clamp the workpiece onto the protruding support parts. The pneumatic blowing assembly includes vents on the protruding support parts and nozzles mounted on the support plate. The dual-path blowing design effectively removes metal debris generated during processing. The dual-path pneumatic blowing system provided by this invention can precisely blow each support point before clamping, ensuring no aluminum debris residue on the contact surface. This ensures stable workpiece positioning and provides operational space for debris removal, significantly improving the accuracy and efficiency of brake disc drilling. It is particularly suitable for high-precision drilling of disc-type workpieces such as brake discs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a fixing fixture for a brake disc workpiece according to the present invention;

[0019] Figure 2This is a structural diagram of a single clamping station.

[0020] Reference numerals: 1. Support plate; 2. Fixture base; 3. Protruding support; 4. Power swing arm clamping device; 41. Drive cylinder; 42. Pressure arm; 5. Pneumatic purging assembly; 51. Vent; 52. Nozzle; 53. Assembly block; 54. Adapter; 6. Tilting drive mechanism. Detailed Implementation

[0021] like Figure 1 and Figure 2 The diagram illustrates a clamping fixture for a brake disc workpiece, used to fix the workpiece's position during brake disc drilling. It includes a support plate 1 with two machining stations, each corresponding to a workpiece and equipped with a clamping base 2. The clamping base 2 has a ring-shaped structure, and its upper surface serves as the workpiece's working plane. Multiple protruding support portions 3 are spaced apart on the working plane, their tops collectively supporting the workpiece to form a support area in contact with its surface. Other areas of the workpiece plane are lower than the upper surface of the protruding support portions 3, creating a clearance area for the workpiece.

[0022] A clamping mechanism is also provided on the support plate 1 to fix the workpiece to the raised support 3. The clamping mechanism includes three power swing arm clamping devices 4 arranged on the side of the fixture base 2, each power swing arm clamping device 4 corresponding to the number of raised support 3. The power swing arm clamping device 4 includes a drive cylinder 41 and a pressure arm 42 driven by the drive cylinder 41. As a preferred embodiment, the drive cylinder 41 is a hydraulic cylinder, which is connected to a hydraulic station through a hydraulic pipeline to provide a stable and powerful clamping force. It is understood that in other alternatives, the drive cylinder 41 can also be a power source such as a pneumatic cylinder. The pressure arm 42 is normally offset from the fixture base 2. When the drive cylinder 41 is activated, the pressure arm 42 performs a rotating clamping action, so that the workpiece is in close contact with the upper surface of the raised support 3, while the clearance area is approximately 2 mm away from the bottom of the workpiece.

[0023] A cleaning device is also provided for cleaning the bottom of the workpiece. This device is applied to the drilling process of brake disc workpieces. The main cleaning target is the metal shavings generated during the drilling process. Aluminum shavings tend to concentrate near the various protruding support portions 3, with a very small accumulation area. The cleaning device consists of multiple pneumatic blowing assemblies 5 connected to an air source. Compressed airflow is used to flush away the shavings on the surface of the workpiece. The pneumatic blowing assembly 5 includes a first blowing section, which is a vent 51 formed on the surface of the protruding support portion 3. The vent 51 is connected to the air source through a pipeline. The ejection surface of the vent 51 faces the lower surface of the workpiece. When the air source is turned on, the compressed gas rushes upward with the vent 51, blowing away the aluminum shavings at the bottom of the workpiece. Since the area around the protruding support portion 3 is an open space, and the protruding support portion 3 occupies very little space, the compressed gas can easily blow away the aluminum shavings accumulated on the surface of the protruding support portion 3.

[0024] The pneumatic blowing assembly 5 also includes a second blowing section, which consists of three blowing devices mounted on the support plate 1. Each blowing device corresponds to a protruding support 3. The blowing devices are connected to an air source via pipelines to directly flush the protruding support 3. The blowing assembly works in conjunction with the vent 51 to ensure that there are no blind spots around the protruding support 3, thus ensuring effective chip removal.

[0025] Furthermore, the purging device includes a nozzle 52 and an assembly block 53 mounted on the support plate 1. The other end of the assembly block 53 is connected to an adapter 54. The assembly block 53 can quickly install the nozzle 52 and stabilize the installation position of the nozzle 52. The adapter 54 can change the gas flow direction to ensure that the gas can impact the protruding support 3.

[0026] The oil circuit of the power swing arm clamping device 4 and the gas pipeline of the pneumatic blowing assembly 5 can be integrated into the support plate 1 to achieve high integration of the equipment and neat pipeline management. The air circuit of the cleaning device can also be partially externally connected.

[0027] Furthermore, a flipping drive mechanism 6 is connected to the side of the support plate 1. The flipping drive mechanism 6 is located on the side of the support plate 1, and its driving end is connected to the support plate 1. It is used to drive the support plate 1 and the clamping base 2 on it to flip around a horizontal axis. The flipping drive mechanism 6 can drive the entire workpiece clamping system to perform precise rotation or flipping actions to meet the special requirements of workpiece processing.

[0028] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A clamping fixture for a brake disc workpiece, characterized in that, include: Support plate (1); A fixture base (2) is disposed on the support plate (1), and the fixture base (2) has a working plane for supporting the workpiece; Multiple protruding support parts (3) are spaced apart on the working plane of the fixture base (2), with their top ends forming a support area for supporting the workpiece, and the rest of the working plane forming a recessed clearance area relative to the support area. A pressing mechanism is provided on the support plate (1) and is used to press the workpiece onto the protruding support part (3); A pneumatic blowing assembly (5) is disposed on the support plate (1) and is used to clean the area of ​​the protruding support (3).

2. The fixing fixture for a brake disc workpiece as described in claim 1, characterized in that: The clamping mechanism is a power swing arm clamping device (4), which includes a drive cylinder (41) and a clamping arm (42) driven by the drive cylinder (41).

3. The fixing fixture for a brake disc workpiece as described in claim 2, characterized in that: The pneumatic purging assembly (5) includes a first purging part and a second purging part. The first purging part is a vent (51) opened on the protruding support part (3), and the outlet of the vent (51) faces the bottom of the workpiece. The second purging part is disposed on the support plate (1), and the purging surface faces the outside of each protruding support part (3).

4. The fixing fixture for a brake disc workpiece as described in claim 3, characterized in that: The second purging unit includes a nozzle (52), an assembly block (53) and an adapter (54). The assembly block (53) is mounted on the support plate (1), the nozzle (52) is disposed on the assembly block (53), and the adapter (54) is connected to the assembly block (53) to access the air source.

5. The fixing fixture for a brake disc workpiece as described in claim 4, characterized in that: The number of the power swing arm clamping devices (4) is multiple and arranged around the circumference of the clamp base (2). Each clamping arm (42) has a protruding support (3) and a nozzle (52) directly below its clamping position.

6. The fixing fixture for a brake disc workpiece as described in claim 2, characterized in that: The drive cylinder (41) is hydraulically driven.

7. The clamping fixture for a brake disc workpiece as described in claim 6, characterized in that: The support plate (1) has hydraulic pipelines inside, which are used to deliver hydraulic medium to the power swing arm clamping device (4).

8. The clamping fixture for a brake disc workpiece as described in claim 2, characterized in that: It also includes a flipping drive mechanism (6), the drive end of which is connected to the side of the support plate (1) and is used to drive the support plate (1) to flip around a horizontal axis.

9. The clamping fixture for a brake disc workpiece as described in claim 2, characterized in that: The support plate (1) is provided with a plurality of clamp bases (2) arranged side by side, and each clamp base (2) is provided with a corresponding power swing arm clamping device (4) and a pneumatic blowing assembly (5).

10. The fixing fixture for a brake disc workpiece as described in claim 2, characterized in that: The clamp base (2) is a ring structure, and the plurality of protruding support parts (3) are evenly spaced along its circumference.

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