Brake disc casting blank shaping equipment

Abstract

The invention discloses brake disc casting blank shaping equipment which comprises a supporting box, a shaping mechanism and a bearing mechanism are arranged on the supporting box, the shaping mechanism is arranged above the bearing mechanism, the bearing mechanism is used for placing a brake disc casting blank, and the shaping mechanism is used for shaping the brake disc casting blank; the shaping mechanism comprises a pressing assembly and a trimming assembly, the pressing assembly comprises four supporting rods and four sliding rods, the four supporting rods and the four sliding rods are evenly distributed on the bearing mechanism, a central pivot plate is fixed to the tops of the four supporting rods and the four sliding rods, and a hydraulic air cylinder is fixed to the top of the central pivot plate. A lifting plate is slidably connected to the four sets of sliding rods, the output end of the hydraulic air cylinder is fixedly connected with the lifting plate, a shaping disc is fixed to the bottom of the lifting plate, the surface of the brake disc casting blank can be locally corrected, and the correction quality is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of deformation casting equipment, in particular to a brake disc casting blank shaping equipment. Background Art

[0002] The brake is a component in the braking system used to generate braking force to hinder the movement or movement trend of the vehicle. Except for various retarders, automobile brakes are almost all friction brakes that use the friction between the working surface of the fixed element and the rotating element to generate braking torque. At present, the friction brakes widely used in various types of automobiles can be divided into two categories: drum type and disc type according to the different rotating elements. The brake disc is the friction component of the disc brake. In addition to having the strength and rigidity required as a component, it should also have a friction coefficient that is as high and stable as possible.

[0003] In the production process of some high-performance brake discs, the brake discs need to be quenched. After quenching, in order to eliminate internal stress, tempering treatment is required. During the heat treatment process, the weak edges of the brake discs are prone to deformation or cracks.

[0004] Therefore, the brake disc needs to be corrected under high pressure, but the existing correction equipment all presses the surface of the brake disc casting blank uniformly. This shaping method cannot locally correct the surface of the brake disc casting blank, which easily leads to low correction efficiency. This phenomenon has become a problem that needs to be urgently solved by people in this field. Summary of the invention

[0005] The object of the present invention is to provide a brake disc casting blank shaping device to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a brake disc casting blank shaping device, comprising a support box, the support box is provided with a shaping mechanism and a bearing mechanism, the shaping mechanism is arranged above the bearing mechanism, the bearing mechanism is used to place the brake disc casting blank, and the shaping mechanism is used to shape the brake disc casting blank; The shaping mechanism includes a pressing component and a trimming component, the pressing component includes four groups of support rods and four groups of slide rods, the four groups of support rods and four groups of slide rods are evenly distributed on the bearing mechanism, a central plate is fixed on the top of the four groups of support rods and four groups of slide rods, a hydraulic cylinder is fixed on the top of the central plate, a lifting plate is slidably connected to the four groups of slide rods, the output end of the hydraulic cylinder is fixedly connected to the lifting plate, and a shaping disc is fixed on the bottom of the lifting plate; The trimming assembly includes four groups of first cylinders and four groups of pressing plates, the four groups of the first cylinders are fixed above the lifting plate, the four groups of the pressing plates are arranged in the trimming disk, and the output end of each group of the first cylinders is fixedly connected to the pressing plate; A controller is fixed on one side of the supporting box.

[0007] According to the above technical solution, the bearing mechanism includes a testing assembly and a clamping assembly, the testing assembly is used to test the flatness of the brake disc casting blank, and the clamping assembly is used to clamp the brake disc casting blank, wherein: The clamping assembly includes a base plate fixed on a support box, a support column connected to a bearing on the base plate, a placement plate fixed on the support column, the inner diameter of the placement plate is adapted to the outer diameter of the brake disc casting blank, a plurality of placement grooves are opened on the inner side of the placement plate, a second cylinder is fixed inside the placement groove, a clamping plate is fixed to the output end of the second cylinder, and the clamping plate is adapted to the side of the brake disc casting blank.

[0008] According to the above technical solution, a pressure sensor is fixed to the bottom of the placement plate.

[0009] According to the above technical solution, the test assembly includes a rotating disk, the rotating disk bearing is connected to the base plate, a third cylinder is fixedly connected to the rotating disk, an output end of the third cylinder is fixedly connected to a fixed plate, and a dial indicator is fixed to one end of the fixed plate.

[0010] According to the above technical solution, four groups of support seats are fixed on the bottom plate, and rollers are fixed on the top of each group of support seats. The rollers are in contact with the bottom of the placement tray to support the placement tray.

[0011] According to the above technical solution, a first motor and a second motor are fixed inside the support box, the output end of the first motor is fixedly connected to the support column, and the output end of the second motor is fixedly connected to the rotating disk.

[0012] According to the above technical solution, the controller includes a shaping adjustment system, the shaping adjustment system includes an acquisition module and a processing module, the acquisition module includes a data receiving submodule, a pressure receiving submodule and a logic judgment submodule, the data receiving submodule is electrically connected to the dial indicator, the pressure receiving submodule is electrically connected to the pressure sensor, and the logic judgment submodule is used to judge the flatness of the surface of the brake disc casting blank; The data receiving submodule includes a position recording unit for recording the position of the uneven surface of the brake disc casting blank; The processing module includes a pressing submodule 1, a pressing submodule 2 and a marking submodule, the pressing submodule is electrically connected to the hydraulic cylinder, the pressing submodule is electrically connected to the first cylinder, and the marking submodule is used to mark the brake disc casting blank.

[0013] According to the above technical solution, the shaping and adjustment system includes the following specific operation steps: Step 1: Place the brake disc casting blank into the placement plate, start the second cylinder to extend, drive the clamping plate to clamp the side of the brake disc casting blank, and fix the brake disc casting blank; Step 2: Pressing submodule 1 starts the extension of the hydraulic cylinder, driving the shaping disc to move downward and press on the surface of the brake disc casting blank; Step 3: Control the correction component to start further correcting the surface of the brake disc casting blank; Step 4: After the correction is completed, start the test component to detect the surface flatness of the brake disc casting blank to determine the correction quality.

[0014] Compared with the prior art, the beneficial effect achieved by the present invention is that, by providing a trimming assembly, when trimming the surface of the brake disc casting blank, the trimming can be divided into unified trimming or local trimming according to the surface flatness of the brake disc casting blank, thereby ensuring the trimming quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a side schematic diagram of the overall structure of the present invention; Figure 3 The present invention Figure 1 A local enlarged schematic diagram of area A; Figure 4 is a two-dimensional schematic diagram of a placement tray of the present invention; Figure 5 is a schematic diagram of a shaping and adjusting system of the present invention; Figure 6 is a schematic diagram of a brake disc casting blank of the present invention; Figure 7 The present invention Figure 6 A local enlarged schematic diagram of area B; In the figure: 1. support box; 2. bottom plate; 3. support rod; 4. central plate; 5. hydraulic cylinder; 6. first cylinder; 7. shaping disk; 8. lifting plate; 9. pressing plate; 10. controller; 11. rotating disk; 12. third cylinder; 13. fixed plate; 14. dial indicator; 15. placement disk; 16. support column; 17. placement slot; 18. second cylinder; 19. clamping plate; 20. support seat; 21. pressure sensor; 22. slide rod. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-7 The present invention provides a technical solution: a brake disc casting blank shaping device, comprising a support box 1, on which a shaping mechanism and a bearing mechanism are arranged, the shaping mechanism is arranged above the bearing mechanism, the bearing mechanism is used to place the brake disc casting blank, and the shaping mechanism is used to shape the brake disc casting blank.

[0018] The shaping mechanism includes a pressing component and a trimming component. The pressing component includes four groups of support rods 3 and four groups of slide rods 22. The four groups of support rods 3 and the four groups of slide rods 22 are evenly distributed on the bearing mechanism. A central plate 4 is fixed on the top of the four groups of support rods 3 and the four groups of slide rods 22. A hydraulic cylinder 5 is fixed on the top of the central plate 4. A lifting plate 8 is slidably connected to the four groups of slide rods 22. The output end of the hydraulic cylinder 5 is fixedly connected to the lifting plate 8. A shaping disk 7 is fixed to the bottom of the lifting plate 8. Starting the hydraulic cylinder 5 to extend drives the lifting plate 8 to slide up and down on the slide rod 22, thereby driving the shaping disk 7 to move up and down, which is convenient for pressing the brake disc casting blank.

[0019] The trimming assembly includes four groups of first cylinders 6 and four groups of pressing plates 9. The four groups of first cylinders 6 are fixed above the lifting plate 8. The four groups of pressing plates 9 are arranged in the shaping disk 7. The output end of each group of first cylinders 6 is fixedly connected to the pressing plate 9. Starting the first cylinders 6 can drive the pressing plate 9 to rise and fall, further press the brake disc casting blank, and improve the shaping quality.

[0020] A controller 10 is fixed to one side of the supporting box 1 .

[0021] The bearing mechanism comprises a testing assembly and a clamping assembly, wherein the testing assembly is used to test the flatness of the brake disc casting blank, and the clamping assembly is used to clamp the brake disc casting blank; The clamping assembly includes a base plate 2 fixed on the support box 1, a support column 16 is connected to a bearing on the base plate 2, a placement plate 15 is fixed on the support column 16, the inner diameter of the placement plate 15 is adapted to the outer diameter of the brake disc casting blank, a plurality of placement grooves 17 are provided on the inner side of the placement plate 15, a second cylinder 18 is fixed inside the placement groove 17, a clamping plate 19 is fixed to the output end of the second cylinder 18, the clamping plate 19 is adapted to the side of the brake disc casting blank, the second cylinder 18 is started to extend, and the brake disc casting blank is clamped by the clamping plate 19.

[0022] A pressure sensor 21 is fixed to the bottom of the placement plate 15 .

[0023] A first motor and a second motor (not shown) are fixed inside the support box 1. The output end of the first motor is fixedly connected to the support column 16. Starting the first motor drives the support column 16 to rotate, thereby driving the placement plate 15 to rotate.

[0024] The test assembly includes a rotating disk 11, the rotating disk 11 bearing is connected to the bottom plate 2, the rotating disk 11 is fixedly connected to a third cylinder 12, the output end of the third cylinder 12 is fixedly connected to a fixed plate 13, one end of the fixed plate 13 is fixed to a dial indicator 14, and the dial indicator 14 contacts the surface of the brake disc casting blank to detect the surface flatness of the brake disc casting blank; The output end of the second motor is fixedly connected to the rotating disk 11. Starting the second motor drives the rotating disk 11 to rotate, thereby driving the third cylinder 12 to rotate, so that the dial indicator 14 is in contact with the surface of the brake disc casting blank.

[0025] Four groups of support seats 20 are fixed on the bottom plate 2 . A roller (not shown in the figure) is fixed on the top of each group of support seats 20 . The roller contacts the bottom of the placement tray 15 to support the placement tray 15 .

[0026] The controller 10 includes a shaping and adjusting system, which includes an acquisition module and a processing module. The acquisition module includes a data receiving submodule, a pressure receiving submodule and a logic judgment submodule. The data receiving submodule is electrically connected to the dial gauge 14, the pressure receiving submodule is electrically connected to the pressure sensor 21, and the logic judgment submodule is used to judge the flatness of the surface of the brake disc casting blank. The data receiving submodule includes a position recording unit for recording the position of the uneven surface of the brake disc casting blank; The processing module includes a pressing submodule 1, a pressing submodule 2 and a marking submodule. The pressing submodule is electrically connected to the hydraulic cylinder 5, the pressing submodule is electrically connected to the first cylinder 6, and the marking submodule is used to mark the brake disc casting blank.

[0027] Embodiment 1: In this embodiment, the surface of the brake disc casting blank can be partially trimmed by the shaping and adjusting system, specifically: The shaping and adjustment system includes the following specific operation steps: Step 1: Place the brake disc casting blank into the placement plate 15, start the second cylinder 18 to extend, drive the clamping plate 19 to clamp the side of the brake disc casting blank, and fix the brake disc casting blank; Step 2: Pressing submodule 1 starts the hydraulic cylinder 5 to extend, driving the shaping disc 7 to move downward and press on the surface of the brake disc casting blank; Step 3: Control the correction component to start further correcting the surface of the brake disc casting blank; Specifically, by pressing the submodule 2 to start the extension of the first cylinder 6, the four groups of pressing plates 9 simultaneously press the surface of the brake disc casting blank, and synchronously correct the surface of the brake disc casting blank to ensure the correction quality; Step 4: After the correction is completed, start the test component to detect the surface flatness of the brake disc casting blank to determine the correction quality.

[0028] Step 4 includes the following specific steps: Step 4-a: After the correction component is finished, the hydraulic cylinder 5 is controlled to contract by pressing the submodule 1, thereby driving the lifting plate 8 to lift, and controlling the shaping disc 7 to move away from the brake disc casting blank; Step 4-b: Start the dial indicator 14 on the test assembly to contact the surface of the brake disc casting blank, and then control the placement plate 15 to rotate, so that the dial indicator 14 can detect the flatness of the surface of the brake disc casting blank; Specifically, the third cylinder 12 extends, and drives the dial indicator 14 to be raised above the surface of the brake disc casting blank through the fixed plate 13. At this time, the second motor drives the rotating disk 11 to rotate, thereby driving the dial indicator 14 to the surface above the brake disc casting blank through the fixed plate 13, and then the third cylinder 12 is controlled to contract so that the dial indicator 14 contacts the surface of the brake disc casting blank; At this time, the first motor is started to rotate the support column 16 and the placement plate 15, so that the brake disc casting blank rotates relative to the dial indicator 14, which is convenient for the dial indicator 14 to detect the flatness of the surface of the brake disc casting blank.

[0029] Step 4-c: The dial gauge 14 transmits the detected flatness value to the data receiving submodule, so as to analyze the flatness of the brake disc casting blank after surface shaping; Specifically, the staff sets the maximum threshold value of the surface height of the brake disc casting blank as H in the data receiving submodule. After the placement disc 15 rotates one circle, the dial indicator 14 transmits the detected value to the data receiving submodule, and compares the real-time detected value with the set maximum threshold value H. The formula is: ,in, It is the flatness value of the brake disc casting blank surface detected in real time after the brake disc casting blank rotates one circle. This is the normal value of the surface flatness of the brake disc casting blank. This is the highest flatness value of the brake disc casting blank surface detected in real time after the brake disc casting blank rotates one circle. It should be added that Can be positive or negative; when When When the surface flatness of the brake disc casting blank is medium, secondary correction can be performed. At the same time, the position recording unit records the position where the surface flatness of the brake disc casting blank is medium. When the brake disc casting blank has a low surface flatness, the signal is transmitted to the marking submodule to mark the brake disc casting blank.

[0030] Step 4-d: If there are problems with the surface of the brake disc casting blank after shaping, start the correction component to perform secondary trimming on the surface of the brake disc casting blank to further ensure the quality of the trimming; Specifically, when the surface flatness of the brake disc casting blank is at the intermediate level, the shaping disc 7 is controlled to move downward again, so that the pressing plate 9 contacts the surface of the brake disc casting blank again. Since the position recording unit records the position where the surface flatness of the brake disc casting blank is at the intermediate level, at this time, it is only necessary to control the corresponding first cylinder 6 to operate, so that the pressing plate 9 located above the surface of the brake disc casting blank with the intermediate flatness is pressed against the surface of the brake disc casting blank, and the pressure is kept constant for a period of time, and then the flatness test step of step 4-c is repeated to judge whether the secondary trimming is successful again. If the surface flatness of the brake disc casting blank becomes advanced, it means that the secondary trimming is successful. If the surface flatness of the brake disc casting blank is still not advanced, the signal is transmitted to the marking submodule, and the unsuccessful repair of the brake disc casting blank is marked, and the staff will handle it later. Through the above steps, when trimming the surface of the brake disc casting blank, it can be divided into unified trimming or local trimming according to the surface flatness of the brake disc casting blank, so as to ensure the trimming quality.

[0031] It should be added that the local trimming can control the operation of a single or multiple first cylinders 6, and the specific adjustment needs to be made according to the surface flatness of the brake disc casting blank.

[0032] Embodiment 2: In this embodiment, based on the judgment of the finishing quality in the first embodiment, the quality of the brake disc casting blank is further judged; Specifically, when the brake disc casting blank is uniformly trimmed, when the shaping disc 7 is pressed against the surface of the brake disc casting blank, the brake disc casting blank is subjected to downward pressure, thereby applying pressure to the bottom of the placement disc 15, and the pressure sensor 21 detects the pressure and transmits it to the pressure receiving submodule, and the pressure applied is recorded by the pressure receiving submodule; If the pressure receiving submodule recognizes that the pressure of the brake disc casting blank on the bottom of the placement disc 15 is consistent, it means that the flatness of the bottom surface of the brake disc casting blank is uniform. When it is recognized that the pressure of the brake disc casting blank on the bottom of the placement disc 15 is inconsistent, it means that the bottom surface of the brake disc casting blank is uneven, indicating that the flatness of the bottom surface of the brake disc casting blank is uneven. At this time, the signal is transmitted to the marking submodule to mark the brake disc casting blank. The brake disc casting blank can be directly turned over on the shaping equipment, and the dial indicator 14 is directly started to detect the flatness of the other side of the brake disc casting blank. Repeat step 4-d to directly perform local trimming; When the brake disc casting blank is uniformly trimmed for the first time through the logic judgment submodule, when the surface flatness of the brake disc casting blank is high after the uniform trimming, and the flatness of the bottom surface of the brake disc casting blank is uniform, it means that the quality of the brake disc casting blank is high.

[0033] When the surface flatness of the brake disc casting blank after unified trimming is intermediate and needs secondary local trimming, and the bottom surface flatness of the brake disc casting blank is uniform, it is necessary to further analyze whether the bottom surface of the rear brake disc casting blank is affected after the secondary trimming: Specifically, through the analysis of the logic judgment sub-module, after the second local trimming of the surface of the brake disc casting blank, if the bottom surface of the brake disc casting blank with originally uniform flatness becomes uneven, it means that the brake disc casting blank is prone to overall deformation when subjected to local pressure, indicating that the brake disc casting blank is of poor quality and is prone to deformation when subjected to pressure.

[0034] Through the above steps, the quality of the brake disc casting blank can be further judged when the brake disc casting blank is trimmed, thereby improving the production quality of the brake disc casting blank.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A brake disc casting blank shaping device, comprising a support box (1), characterized in that: The support box (1) is provided with a shaping mechanism and a bearing mechanism, the shaping mechanism is arranged above the bearing mechanism, the bearing mechanism is used to place the brake disc casting blank, and the shaping mechanism is used to shape the brake disc casting blank; The shaping mechanism comprises a pressing component and a trimming component, the pressing component comprises four groups of support rods (3) and four groups of slide rods (22), the four groups of support rods (3) and the four groups of slide rods (22) are evenly distributed on the bearing mechanism, a central plate (4) is fixed on the top of the four groups of support rods (3) and the four groups of slide rods (22), a hydraulic cylinder (5) is fixed on the top of the central plate (4), a lifting plate (8) is slidably connected to the four groups of slide rods (22), the output end of the hydraulic cylinder (5) is fixedly connected to the lifting plate (8), and a shaping disc (7) is fixed on the bottom of the lifting plate (8); The trimming assembly comprises four groups of first cylinders (6) and four groups of pressing plates (9), the four groups of the first cylinders (6) being fixed above the lifting plate (8), the four groups of the pressing plates (9) being arranged in the trimming disk (7), and the output end of each group of the first cylinders (6) being fixedly connected to the pressing plate (9); A controller (10) is fixed to one side of the support box (1).

2. The brake disc casting blank shaping equipment according to claim 1, characterized in that: The bearing mechanism comprises a testing assembly and a clamping assembly, wherein the testing assembly is used to test the flatness of the brake disc casting blank, and the clamping assembly is used to clamp the brake disc casting blank, wherein: The clamping assembly comprises a base plate (2) fixed on a support box (1), a support column (16) is connected to a bearing on the base plate (2), a placement plate (15) is fixed on the support column (16), the inner diameter of the placement plate (15) is matched with the outer diameter of the brake disc casting blank, a plurality of placement grooves (17) are provided on the inner side surface of the placement plate (15), a second cylinder (18) is fixed inside the placement groove (17), a clamping plate (19) is fixed to the output end of the second cylinder (18), and the clamping plate (19) is matched with the side surface of the brake disc casting blank.

3. The brake disc casting blank shaping equipment according to claim 2, characterized in that: A pressure sensor (21) is fixed to the bottom of the placement plate (15).

4. The brake disc casting blank shaping equipment according to claim 3 is characterized in that: The test assembly comprises a rotating disk (11), the rotating disk (11) having a bearing connected to a base plate (2), a third cylinder (12) fixedly connected to the rotating disk (11), an output end of the third cylinder (12) fixedly connected to a fixed plate (13), and a dial indicator (14) fixed to one end of the fixed plate (13).

5. The brake disc casting blank shaping equipment according to claim 2, characterized in that: Four groups of support seats (20) are fixed on the bottom plate (2), and a roller is fixed on the top of each group of support seats (20). The roller (20) is in contact with the bottom of the placement plate (15) and is used to support the placement plate (15).

6. The brake disc casting blank shaping equipment according to claim 4, characterized in that: A first motor and a second motor are fixed inside the support box (1); an output end of the first motor is fixedly connected to the support column (16), and an output end of the second motor is fixedly connected to the rotating disk (11).

7. The brake disc casting blank shaping equipment according to claim 6, characterized in that: The controller (10) comprises a shaping adjustment system, the shaping adjustment system comprises a collection module and a processing module, the collection module comprises a data receiving submodule, a pressure receiving submodule and a logic judgment submodule, the data receiving submodule is electrically connected to a dial indicator (14), the pressure receiving submodule is electrically connected to a pressure sensor (21), and the logic judgment submodule is used to judge the flatness of the surface of a brake disc casting blank; The data receiving submodule includes a position recording unit for recording the position of the uneven surface of the brake disc casting blank; The processing module comprises a pressing submodule 1, a pressing submodule 2 and a marking submodule, the pressing submodule being electrically connected to the hydraulic cylinder (5), the pressing submodule being electrically connected to the first cylinder (6), and the marking submodule being used to mark the brake disc casting blank.

8. The brake disc casting blank shaping equipment according to claim 7, characterized in that: The shaping and adjustment system comprises the following specific operation steps: Step 1: Place the brake disc casting blank into the placement plate (15), start the second cylinder (18) to extend, drive the clamping plate (19) to clamp the side of the brake disc casting blank, and fix the brake disc casting blank; Step 2: by pressing the submodule 1, the hydraulic cylinder (5) is activated to extend, thereby driving the shaping disc (7) to move downward and press against the surface of the brake disc casting blank; Step 3: Control the correction component to start further correcting the surface of the brake disc casting blank; Step 4: After the correction is completed, start the test component to detect the surface flatness of the brake disc casting blank to determine the correction quality.

9. The brake disc casting blank shaping equipment according to claim 8, characterized in that: The step 4 includes the following specific steps: Step 4-a: After the correction component has completed its work, the hydraulic cylinder (5) is controlled to contract by pressing the submodule 1, thereby driving the lifting plate (8) to lift, and controlling the shaping disc (7) to move away from the brake disc casting blank; Step 4-b: Start the dial indicator (14) on the test assembly to contact the surface of the brake disc casting blank, and then control the placement plate (15) to rotate, so that the dial indicator (14) can detect the flatness of the surface of the brake disc casting blank; Step 4-c: The dial indicator (14) transmits the detected flatness value to the data receiving submodule, so as to analyze the flatness of the brake disc casting blank after surface shaping; Step 4-d: If there are problems with the surface of the brake disc casting blank after shaping, start the correction component to perform secondary trimming on the surface of the brake disc casting blank to further ensure the quality of the trimming.

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