Intelligent manufacturing automobile brake disc fatigue strength test device

Abstract

The intelligently-manufactured automobile brake disc fatigue strength test device comprises a workbench, a supporting plate is fixedly arranged on one side of the workbench, a positioning plate used for installing a brake disc is rotationally arranged on the supporting plate, a plurality of positioning columns are fixedly arranged on one side of the positioning plate in the circumferential direction of the positioning plate, and a power device for driving the positioning plate to rotate is arranged on the supporting plate. A detection device for detecting the brake disc is arranged at the top of the workbench, a movable plate is slidably arranged at the top of the workbench, a limiting plate is rotatably arranged on one side of the movable plate, limiting holes matched with the positioning columns are formed in the limiting plate in the circumferential direction of the limiting plate, and a driving assembly for driving the movable plate to move is arranged on the workbench. A sliding plate is slidably arranged on the top of the workbench, brake calipers are fixedly arranged on the sliding plate, and a first transmission assembly driving the sliding plate to move is arranged on the workbench. The brake caliper is driven to move to the brake disc in the process of mounting the brake disc, so that the operation steps are reduced, and the efficiency of testing the brake disc is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile brake disc testing, and in particular to an intelligently manufactured automobile brake disc fatigue strength testing device. Background Art

[0002] Most automotive brake discs are produced using intelligent manufacturing equipment to meet the requirements of automotive use. They are round metal discs that rotate with the wheels while the vehicle is in motion, and are clamped by the brake calipers to generate friction, enabling deceleration or stopping. Because automotive brake discs must withstand repeated friction and thermal stress during braking, they are prone to cracking or deformation after long-term use, leading to brake failure. Therefore, fatigue testing of automotive brake discs is necessary to simulate high-frequency braking scenarios and assess their fatigue resistance to avoid safety accidents such as brake failure caused by material fatigue. For example, the patent document with the publication number "CN115219185B" and the title "An Intelligently Manufactured Automobile Brake Disc Fatigue Strength Test Device" includes a base plate, a vertical plate and a control panel fixed to the base plate, a rotatably mounted storage mechanism on the vertical plate, one end of the storage mechanism being connected to a drive mechanism, a speed measuring mechanism being mounted on one side of the vertical plate near the storage mechanism, a pushing assembly being mounted on one side of the top of the vertical plate, a braking mechanism being mounted on the sliding end of the pushing assembly, and a counterweight mechanism being fixed on the other side of the vertical plate, the counterweight mechanism including a fixed shaft connected to the drive mechanism, one end of the fixed shaft being rotatably connected to the vertical plate, and a counterweight roller being mounted on the fixed shaft. By mounting different numbers of counterweight rollers on the fixed shaft, the inertia generated by the overall high-speed rotation of the counterweight rollers can be different, thereby imparting different motion inertial forces to the brake disc.

[0003] However, in the process of testing the brake disc in the above-mentioned document, the brake disc is first assembled on the positioning column, and the positioning nut is screwed on the corresponding positioning column to lock the brake disc, and then the pushing component is started to push the brake mechanism toward the brake disc, which results in complicated operation steps, low degree of automation, time-consuming and labor-intensive, and reduces the efficiency of the brake disc test. Summary of the Invention

[0004] The purpose of the present invention is to address the shortcomings of the existing technology and propose an intelligently manufactured automobile brake disc fatigue strength testing device to solve the technical problems mentioned in the background technology, such as the complicated operation steps, low degree of automation, time-consuming and labor-intensive operation, which reduces the efficiency of brake disc testing.

[0005] To achieve the above object, the present invention adopts the following technical solutions: An automobile brake disc fatigue strength test device for intelligent manufacturing, comprising a workbench. One side of the workbench is fixedly provided with a support plate. A positioning plate for installing the brake disc is rotatably arranged on the support plate. A plurality of positioning columns are fixedly arranged along the circumferential direction on one side of the positioning plate. A power device for driving the positioning plate to rotate is arranged on the support plate. A detection device for detecting the brake disc is arranged on the top of the workbench. A moving plate is slidably arranged on the top of the workbench. A limiting plate is rotatably arranged on one side of the moving plate. A limiting hole adapted to the positioning column is formed along the circumferential direction on the limiting plate. A driving assembly for driving the moving plate to move is arranged on the workbench. A sliding plate is slidably arranged on the top of the workbench. A brake caliper is fixedly arranged on the sliding plate. A first transmission assembly for driving the sliding plate to move is arranged on the workbench; the driving assembly is used for driving the moving plate to move, and the moving plate is used for driving the limiting plate to move towards the positioning plate, so that the limiting plate abuts against the brake disc to limit the brake disc, and the positioning column is inserted into the corresponding limiting hole. At the same time, the driving assembly drives the sliding plate to move through the first transmission assembly, and the sliding plate drives the brake caliper to move to the position of the brake disc.

[0006] Working principle: During use, the brake disc to be tested is installed on the positioning plate through the positioning column. Then, the driving assembly is started to drive the moving plate to move. The moving plate drives the limiting plate to move towards the brake disc, so that the limiting plate abuts against the brake disc to limit the brake disc, and the positioning column is inserted into the corresponding limiting hole to complete the installation of the brake disc. The driving assembly simultaneously drives the sliding plate to move through the first transmission assembly. The sliding plate drives the brake caliper to move to the position of the brake disc, so that the edge of the brake disc is located inside the brake caliper, thus facilitating the simulation of the braking work of the brake disc.

[0007] The beneficial effects of the present invention are as follows: Since a positioning plate for installing the brake disc is rotatably arranged on the support plate, a limiting plate is rotatably arranged on one side of the moving plate, a driving assembly for driving the moving plate to move is arranged on the workbench, a sliding plate is slidably arranged on the top of the workbench, a brake caliper is fixedly arranged on the sliding plate, and a first transmission assembly for driving the sliding plate to move is arranged on the workbench. Therefore, during use, the brake disc to be tested is installed on the positioning plate through the positioning column. Then, the driving assembly is started to drive the moving plate to move. The moving plate drives the limiting plate to move towards the brake disc, so that the limiting plate abuts against the brake disc to limit the brake disc and complete the installation of the brake disc. The driving assembly simultaneously drives the sliding plate to move through the first transmission assembly. The sliding plate drives the brake caliper to move to the position of the brake disc, so that the edge of the brake disc is located inside the brake caliper, thus facilitating the simulation of the braking work of the brake disc. By driving the brake caliper to move to the position of the brake disc simultaneously during the installation of the brake disc, the operation steps are reduced, the automation degree is high, it is time-saving and labor-saving, and the efficiency of testing the brake disc is improved.

[0008] Further, the power device includes a first motor which is fixedly arranged on one side of the support plate. A drive shaft is rotatably arranged on the support plate and is fixedly connected to the positioning plate. The output end of the first motor passes through the support plate and is fixedly connected to the drive shaft.

[0009] Further, the drive assembly includes a second motor and a drive lead screw. A chute is formed at the top of the workbench. The drive lead screw is rotatably installed in the chute. A slider is threadedly connected to the drive lead screw. The slider is slidably connected to the chute, and the top of the slider is fixedly connected to the moving plate. The second motor is fixedly arranged on one side of the workbench, and the output end of the second motor is fixedly connected to the drive lead screw.

[0010] Further, two symmetrically arranged auxiliary grooves are formed at the top of the workbench. Auxiliary rods are fixedly arranged in both of the two auxiliary grooves. Auxiliary blocks are slidably arranged on the auxiliary rods. The auxiliary blocks are slidably connected to the corresponding auxiliary grooves, and the tops of the auxiliary blocks are fixedly connected to the moving plate.

[0011] Further, the first transmission assembly includes a first lead screw and a first bevel gear. A first guiding groove is formed at the top of the workbench. The first lead screw is rotatably installed in the first guiding groove. A first guiding block is threadedly connected to the first lead screw. The first guiding block is slidably connected to the first guiding groove, and the top of the first guiding block is fixedly connected to the sliding plate. One end of the first lead screw extends into the chute. The first bevel gear is fixedly arranged at the end of the first lead screw located in the chute. A second bevel gear meshing with the first bevel gear is fixedly arranged on the drive lead screw.

[0012] Further, the detection device includes a movable plate which is slidably installed at the top of the workbench. A second transmission assembly for driving the movable plate to move is arranged at the top of the workbench. Two symmetrically arranged detection rods are slidably arranged on the top of the movable plate. A plurality of pressure sensors are arranged along the length direction on the relative side of the two detection rods. An adjustment assembly for driving the two detection rods to move towards or away from each other is arranged on the movable plate.

[0013] Further, the second transmission assembly includes a second lead screw and a third bevel gear. A second guiding groove is formed at the top of the workbench. The second lead screw is rotatably arranged in the second guiding groove. A second guiding block is threadedly connected to the second lead screw. The second guiding block is slidably connected to the second guiding groove, and the top of the second guiding block is fixedly connected to the movable plate. One end of the second lead screw extends into the chute. The third bevel gear is fixedly arranged at the end of the second lead screw located in the chute. The third bevel gear meshes with the second bevel gear.

[0014] Further, the adjustment component includes a third motor and a double-headed threaded rod. A long slot is formed in the top of the movable plate. The double-headed threaded rod is rotatably arranged in the long slot. The double-headed threaded rod is threadedly connected to the two detection rods. The two detection rods are slidably connected to the long slot. The third motor is fixedly arranged on the movable plate, and the output end of the third motor is fixedly connected to the double-headed threaded rod.

[0015] Further, a first baffle is fixedly arranged on one side of the support plate, and a second baffle is arranged on one side of the movable plate. The second baffle is in abutting cooperation with the first baffle to block the particles splashed during the brake disc test.

[0016] Further, a limiting column is fixedly arranged inside the second baffle. The limiting column cooperates with the limiting hole to limit the limiting plate. Elastic telescopic rods are symmetrically and fixedly arranged on one side of the movable plate, and the elastic telescopic rods are fixedly connected to the second baffle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of the present invention; Figure 2 is a perspective view of the positioning plate and the power device of the present invention; Figure 3 is a perspective view of another angle of the present invention; Figure 4 is a perspective view of the present invention with the movable plate hidden; Figure 5 is the present invention Figure 4 magnified view of part A; Figure 6 is a perspective view of the detection mechanism of the present invention; Figure 7 is a schematic diagram of the elastic telescopic rod and the limiting column of the present invention.

[0018] Description of the reference numerals: 1, workbench; 2, support plate; 3, movable plate; 4, support column; 5, brake disc; 6, limiting plate; 7, second motor; 8, sliding plate; 9, brake caliper; 10, second baffle; 11, first baffle; 12, movable plate; 13, first motor; 14, drive shaft; 15, positioning plate; 16, positioning column; 17, limiting hole; 18, rotating shaft; 19, first guide block; 20, chute; 21, drive screw rod; 22, slider; 23, auxiliary groove; 24, auxiliary rod; 25, auxiliary block; 26, first guide groove; 27, first screw rod; 28, second guide groove; 29, second screw rod; 30, first bevel gear; 31, second bevel gear; 32, third bevel gear; 33, second guide block; 34, detection rod; 35, pressure sensor; 36, long slot; 37, double-headed threaded rod; 38, third motor; 39, elastic telescopic rod; 40, limiting column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] As Figures 1 - 2 shown, an automobile brake disc fatigue strength test device for intelligent manufacturing includes a workbench 1. Four corners at the bottom of the workbench 1 are fixedly installed with support columns 4 to support the workbench 1. One side of the workbench 1 is fixedly installed with a support plate 2, and the support plate 2 is perpendicular to the workbench 1. A positioning plate 15 for installing the brake disc 5 is rotatably installed at the center of the support plate 2. The positioning plate 15 is circular. A plurality of positioning columns 16 are fixedly installed along the circumferential direction on the side of the positioning plate 15 away from the support plate 2, which is convenient for positioning and installing the brake disc 5 on the positioning plate 15 and for the positioning plate 15 to drive the brake disc 5 to rotate. A power device for driving the positioning plate 15 to rotate is installed on the support plate 2. The power device includes a first motor 13. The first motor 13 is fixedly installed on the side of the support plate 2 away from the workbench 1. A drive shaft 14 is rotatably installed at the center of the support plate 2. The positioning plate 15 is fixedly sleeved on the drive shaft 14. The output end of the first motor 13 passes through the support plate 2 and is fixedly connected to the drive shaft 14 coaxially. The first motor 13 drives the drive shaft 14 to rotate, the drive shaft 14 drives the positioning plate 15 to rotate, and the positioning plate 15 drives the brake disc 5 to rotate.

[0021] As Figures 1 - 5 shown, a moving plate 3 is slidably installed on the top of the workbench 1. A limiting plate 6 is rotatably installed on the side of the moving plate 3 opposite to the support plate 2 through a rotating shaft 18. The limiting plate 6 is circular. A limiting hole 17 adapted to the positioning column 16 is opened along the circumferential direction on the limiting plate 6. A drive assembly for driving the moving plate 3 to move towards the support plate 2 is installed on the workbench 1. The drive assembly includes a second motor 7 and a drive lead screw 21. A chute 20 is opened on the top of the workbench 1. The drive lead screw 21 is rotatably installed in the chute 20 along the length direction of the chute 20. Both ends of the drive lead screw 21 are smooth rod sections, and the smooth rod sections of the drive lead screw 21 are rotatably connected to the chute 20. A slider 22 is threadedly connected to the outer circumference of the drive lead screw 21. The slider 22 is slidably installed in the chute 20, and the top of the slider 22 is fixedly connected to the moving plate 3. The second motor 7 is fixedly installed on the side of the workbench 1 away from the support plate 2. The output end of the second motor 7 is fixedly connected to the drive lead screw 21 coaxially. The second motor 7 drives the drive lead screw 21 to rotate, the drive lead screw 21 drives the slider 22 to move along the chute 20, the slider 22 drives the moving plate 3 to move, and the moving plate 3 drives the limiting plate 6 to move towards the direction of the brake disc 5, so that the limiting plate 6 abuts against the brake disc 5 to limit the brake disc 5, and the positioning column 16 is inserted into the corresponding limiting hole 17, preventing the brake disc 5 from disengaging from the positioning column 16 during rotation, and at the same time facilitating the positioning plate 15 to drive the limiting plate 6 to rotate together through the positioning column 16 when rotating, thereby improving the installation efficiency of installing the brake disc 5 on the positioning plate 15.

[0022] As Figure 1 and Figure 4 shown, two auxiliary slots 23 are symmetrically arranged on the top of the workbench 1. The two auxiliary slots 23 are symmetrical with respect to the center line of the sliding slot 20. Auxiliary rods 24 are fixedly installed along the length direction in both of the two auxiliary slots 23. An auxiliary block 25 is slidably installed on the outer periphery of the auxiliary rod 24. The auxiliary block 25 is slidably installed in cooperation with the corresponding auxiliary slot 23, and the top of the auxiliary block 25 is fixedly connected to the moving plate 3. By driving the auxiliary block 25 to slide along the auxiliary slot 23 through the moving plate 3, the stability of the moving plate 3 during movement is increased.

[0023] As Figure 1 , Figures 3 - 5 shown, a sliding plate 8 is slidably installed on the top of the workbench 1. A brake caliper 9 is fixedly installed on one side of the sliding plate 8 through a connecting rod for braking the brake disc 5. A first transmission assembly for driving the sliding plate 8 to move is installed on the workbench 1. The first transmission assembly includes a first lead screw 27 and a first bevel gear 30. A first guide slot 26 is opened on the top of the workbench 1. The first guide slot 26 is perpendicular to the sliding slot 20. The first lead screw 27 is rotatably installed in the first guide slot 26. Both ends of the first lead screw 27 are smooth rod sections, and the smooth rod sections of the first lead screw 27 are rotatably connected to the first guide slot 26. A first guide block 19 is threadedly connected to the outer periphery of the first lead screw 27. The first guide block 19 is slidably installed in cooperation with the first guide slot 26, and the top of the first guide block 19 is fixedly connected to the sliding plate 8. One end of the first lead screw 27 passes through the workbench 1 and extends into the sliding slot 20. The first bevel gear 30 is fixedly sleeved on the end of the first lead screw 27 located in the sliding slot 20. A second bevel gear 31 meshing with the first bevel gear 30 is fixedly sleeved on the outer periphery of the driving lead screw 21. In the initial position, in order to facilitate the installation of the brake disc 5, the brake caliper 9 is located on one side of the brake disc 5. Therefore, after the brake disc 5 is installed on the positioning plate 15, it is necessary to move the brake caliper 9 to the position of the brake disc 5. During the installation process of the brake disc 5, the driving lead screw 21 rotates to drive the second bevel gear 31 to rotate. The second bevel gear 31 drives the first bevel gear 30 to rotate. The first bevel gear 30 drives the first lead screw 27 to rotate. The first lead screw 27 drives the first guide block 19 to move along the first guide slot 26. The first guide block 19 drives the sliding plate 8 to move. The sliding plate 8 drives the brake caliper 9 to move to the position of the brake disc 5, so as to facilitate simulating the braking work of the brake disc 5. While installing the brake disc 5, the brake caliper 9 is moved to the position of the brake disc 5, thereby improving the automation degree of the operation steps, saving time and effort.

[0024] As Figures 4 - 6As shown in the figure, a detection device for detecting the surface flatness of the brake disc 5 is installed on the top of the workbench 1. The detection device includes a movable plate 12 which is slidably installed on the top of the workbench 1. Two detection rods 34 arranged symmetrically are slidably installed on the top of the movable plate 12. The detection rods 34 are in an "L" shape. A plurality of pressure sensors 35 are installed on the opposite sides of the two detection rods 34 along their lengths, and the plurality of pressure sensors 35 are arranged at equal intervals. An adjustment component for driving the two detection rods 34 to move towards or away from each other is installed on the movable plate 12. The adjustment component includes a third motor 38 and a double-headed threaded rod 37. A long groove 36 is formed on the top of the movable plate 12, and the two detection rods 34 are symmetrically and slidably installed in the long groove 36. The double-headed threaded rod 37 is rotatably installed in the long groove 36. Both ends of the double-headed threaded rod 37 are smooth rod sections, and both ends of the double-headed threaded rod 37 are rotatably connected to the long groove 36. The double-headed threaded rod 37 passes through the two detection rods 34 and is threadedly connected to the two detection rods 34. The thread directions on both sides of the double-headed threaded rod 37 are opposite, and the two sides of the double-headed threaded rod 37 are respectively threadedly connected to the corresponding detection rods 34. The third motor 38 is fixedly installed on one side of the movable plate 12, and the output end of the third motor 38 passes through the movable plate 12 and is fixedly connected to the double-headed threaded rod 37 coaxially. Since the uneven surface of the brake disc 5 will affect the braking function of the vehicle, and the surface flatness of the brake disc 5 is an important factor reflecting the fatigue degree of the brake disc 5, when detecting the flatness of the surface of the brake disc 5, the third motor 38 is started to drive the double-headed threaded rod 37 to rotate. The double-headed threaded rod 37 drives the two detection rods 34 to move towards each other. The two detection rods 34 moving towards each other drive the pressure sensors 35 to contact the surface of the brake disc 5. Thus, whether the flatness of the surface of the brake disc 5 meets the standard is detected through the value of the contact pressure between the pressure sensors 35 and the surface of the brake disc 5, and further the braking performance of the brake disc 5 is judged.

[0025] As Figures 4 - 6As shown in the figure, a second transmission component for driving the movable plate 12 to move is installed on the top of the workbench 1. The second transmission component includes a second lead screw 29 and a third bevel gear 32. A second guide groove 28 is formed in the top of the workbench 1, and the second guide groove 28 is perpendicular to the chute 20. The second lead screw 29 is rotatably installed in the second guide groove 28. Both ends of the second lead screw 29 are smooth rod sections, and both ends of the second lead screw 29 are rotatably passed through the second guide groove 28. A second guide block 33 is threadedly connected to the outer circumference of the second lead screw 29. The second guide block 33 is slidably installed in cooperation with the second guide groove 28, and the top of the second guide block 33 is fixedly connected to the movable plate 12. One end of the second lead screw 29 passes through the workbench 1 and extends into the chute 20. The third bevel gear 32 is fixedly sleeved on one end of the second lead screw 29 located in the chute 20, and the third bevel gear 32 meshes with the second bevel gear 31. When the second bevel gear 31 rotates, it drives the third bevel gear 32 to rotate. The third bevel gear 32 drives the second lead screw 29 to rotate. The second lead screw 29 rotates to drive the second guide block 33 to move along the second guide groove 28. The second guide block 33 drives the movable plate 12 to move. The movable plate 12 drives the two detection rods 34 to move towards the brake disc 5, so that the brake disc 5 is located between the two detection rods 34, facilitating the detection of the brake disc 5.

[0026] As Figure 1 , Figure 3 , Figure 6 and Figure 7 shown, two symmetrically arranged fixing rods are fixedly installed on one side of the support plate 2, and a first baffle 11 is fixedly installed at the other ends of the two fixing rods. Two symmetrically arranged elastic telescopic rods 39 are fixedly installed on the side of the moving plate 3 opposite to the support plate 2, and a second baffle 10 is fixedly installed at the other ends of the two elastic telescopic rods 39. The second baffle 10 is in abutting cooperation with the first baffle 11 to block the particles splashed during the test of the brake disc 5. A limiting post 40 is fixedly arranged on the inner side of the second baffle 10. The limiting post 40 cooperates with the limiting hole 17 to limit the limiting plate 6, preventing the limiting plate 6 from rotating so that the limiting hole 17 cannot be aligned with the positioning post 16.

[0027] As Figure 7 shown, the elastic telescopic rod 39 includes a spring, a sleeve and a sliding rod. The sliding rod is slidably installed in the sleeve. One end of the sleeve is fixedly connected to the moving plate 3, and one end of the sliding rod is fixedly connected to the second baffle 10. The spring is sleeved on the outer circumference of the sleeve and the sliding rod. One end of the spring is fixedly connected to the moving plate 3, and the other end of the spring is fixedly connected to the second baffle 10. When the second baffle 10 abuts against the first baffle 11 and is squeezed, the spring is compressed, and at the same time the sliding rod slides into the sleeve. When the second baffle 10 is not squeezed, under the action of the restoring force of the spring and the guiding action of the sliding rod moving along the sleeve, the second baffle 10 is driven to reset.

[0028] Working principle: During use, the brake disc 5 to be tested is installed on the positioning plate 15 through the positioning posts 16. Then, the second motor 7 is started. The second motor 7 drives the driving lead screw 21 to rotate. The driving lead screw 21 drives the slider 22 to move along the sliding groove 20. The slider 22 drives the moving plate 3 to move. The moving plate 3 drives the limiting plate 6 to move towards the brake disc 5, so that the limiting plate 6 abuts against the brake disc 5 to limit the brake disc 5, and the positioning posts 16 are inserted into the corresponding limiting holes 17 to complete the installation of the brake disc 5.

[0029] During the movement of the moving plate 3, the second baffle 10 is driven to move by the elastic telescopic rod 39. When the second baffle 10 abuts against the first baffle 11, the first baffle 11 and the second baffle 10 form a blocking cover for the brake disc 5 to prevent flying particles from being generated during the braking operation of the brake disc 5, which may cause potential safety hazards. At this time, the second baffle 10 continues to move towards the first baffle 11, so that the elastic telescopic rod 39 is compressed. The second baffle 10 drives the limiting post 40 to disengage from the corresponding limiting hole 17. During the process of the limiting post 40 disengaging from the corresponding limiting hole 17, the positioning post 16 starts to enter the corresponding limiting hole 17. After the limiting plate 6 abuts against the brake disc 5, the limiting post 40 is completely disengaged from the corresponding limiting hole 17 to prevent the limiting post 40 from restricting the rotation of the limiting plate 6.

[0030] During the process of installing the brake disc 5 on the positioning plate 15, while the driving lead screw 21 rotates, it drives the second bevel gear 31 to rotate. The second bevel gear 31 drives the first bevel gear 30 to rotate. The first bevel gear 30 drives the first lead screw 27 to rotate. The first lead screw 27 drives the first guide block 19 to move along the first guide groove 26. The first guide block 19 drives the sliding plate 8 to move. The sliding plate 8 drives the brake caliper 9 to move to the position of the brake disc 5, so that the edge of the brake disc 5 is located inside the brake caliper 9, thus facilitating the simulation of the braking operation of the brake disc 5.

[0031] While the second bevel gear 31 rotates, it also drives the third bevel gear 32 to rotate. The third bevel gear 32 drives the second lead screw 29 to rotate. The second lead screw 29 rotates to drive the second guide block 33 to move along the second guide groove 28. The second guide block 33 drives the movable plate 12 to move. The movable plate 12 drives the two detection rods 34 to move towards the brake disc 5, so that the brake disc 5 is located between the two detection rods 34, facilitating the detection of the brake disc 5.

[0032] Then, the first motor 13 is started. The first motor 13 drives the drive shaft 14 to rotate. The drive shaft 14 drives the positioning plate 15 to rotate. The positioning plate 15 drives the brake disc 5 to rotate. At the same time, the brake caliper 9 is controlled to perform frequent braking on the brake disc 5, so as to simulate the high-frequency braking scenario of the brake disc 5, facilitating the detection of the flatness of the surface of the brake disc 5 after frequent braking.

[0033] When it is necessary to detect the flatness of the surface of the brake disc 5, the third motor 38 is started to drive the double-headed threaded rod 37 to rotate. The double-headed threaded rod 37 drives the two detection rods 34 to move towards each other. The two detection rods 34 moving towards each other drive the pressure sensor 35 to contact the surface of the brake disc 5. Thus, the flatness of the surface of the brake disc 5 is detected by the value of the contact pressure between the pressure sensor 35 and the surface of the brake disc 5, and then the braking performance of the brake disc 5 is judged.

[0034] In the prior art, when installing the brake disc 5, the brake disc 5 is locked by sequentially screwing the locking bolts onto the corresponding positioning posts 16. Compared with the prior art when installing the brake disc 5, in the above device, the driving screw rod 21 drives the moving plate 3 to move. The moving plate 3 simultaneously drives the limiting plate 6 to abut against the brake disc 5, and makes the positioning post 16 enter into the corresponding limiting hole 17, completing the installation of the brake disc 5, thereby improving the installation efficiency of the brake disc 5; at the same time, the moving plate 3 drives the second baffle 10 to abut against the first baffle 11 to form a shielding cover for the brake disc 5, blocking the flying particles generated during the frequent braking of the brake disc 5 and avoiding potential safety hazards; at the same time, the driving screw rod 21 drives the brake caliper 9 to move to the position of the brake disc 5 after transmission, facilitating the simulation of the braking operation of the brake disc 5. Moreover, the driving screw rod 21 also drives the two detection rods 34 to move after transmission, so that the brake disc 5 is located between the two detection rods 34, facilitating the detection of the flatness of the surface of the brake disc 5. Thus, the device has a high degree of automation, saves time and effort, and improves the efficiency of the test on the brake disc 5.

[0035] 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 preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An automobile brake disc fatigue strength test device for intelligent manufacturing, comprising a workbench (1), characterized in that, One side of the workbench (1) is fixedly provided with a support plate (2). A positioning plate (15) for mounting a brake disc (5) is rotatably arranged on the support plate (2). A plurality of positioning columns (16) are fixedly arranged on one side of the positioning plate (15) along its circumferential direction. A power device for driving the positioning plate (15) to rotate is arranged on the support plate (2). A detection device for detecting the brake disc (5) is arranged on the top of the workbench (1). A moving plate (3) is slidably arranged on the top of the workbench (1). A limiting plate (6) is rotatably arranged on one side of the moving plate (3). A limiting hole (17) adapted to the positioning column (16) is formed in the limiting plate (6) along its circumferential direction. A driving assembly for driving the moving plate (3) to move is arranged on the workbench (1). A sliding plate (8) is slidably arranged on the top of the workbench (1). A brake caliper (9) is fixedly arranged on the sliding plate (8). A first transmission assembly for driving the sliding plate (8) to move is arranged on the workbench (1). The driving assembly is used to drive the moving plate (3) to move. The moving plate (3) is used to drive the limiting plate (6) to move towards the positioning plate (15), so that the limiting plate (6) abuts against the brake disc (5) to limit the brake disc (5), and the positioning column (16) is inserted into the corresponding limiting hole (17). At the same time, the driving assembly drives the sliding plate (8) to move through the first transmission assembly, and the sliding plate (8) drives the brake caliper (9) to move to the position of the brake disc (5).

2. The fatigue strength test device for an automotive brake disc in intelligent manufacturing according to claim 1, wherein The power device includes a first motor (13). The first motor (13) is fixedly arranged on one side of the support plate (2). A driving shaft (14) is rotatably arranged on the support plate (2). The driving shaft (14) is fixedly connected with the positioning plate (15). The output end of the first motor (13) passes through the support plate (2) and is fixedly connected with the driving shaft (14).

3. The fatigue strength test device for an automotive brake disc in intelligent manufacturing according to claim 1, characterized in that, The driving assembly includes a second motor (7) and a driving lead screw (21). A chute (20) is formed in the top of the workbench (1). The driving lead screw (21) is rotatably installed in the chute (20). A slider (22) is threadedly connected to the driving lead screw (21). The slider (22) is slidably connected with the chute (20). The top of the slider (22) is fixedly connected with the moving plate (3). The second motor (7) is fixedly arranged on one side of the workbench (1). The output end of the second motor (7) is fixedly connected with the driving lead screw (21).

4. The fatigue strength test device for an automotive brake disc in intelligent manufacturing according to claim 3, characterized in that, Two auxiliary grooves (23) are symmetrically arranged on the top of the workbench (1). Auxiliary rods (24) are fixedly arranged in both of the two auxiliary grooves (23). Auxiliary blocks (25) are slidably arranged on the auxiliary rods (24). The auxiliary blocks (25) are slidably connected with the corresponding auxiliary grooves (23). The top of the auxiliary blocks (25) is fixedly connected with the moving plate (3).

5. The fatigue strength test device for an automotive brake disc in intelligent manufacturing according to claim 3, characterized in that The first transmission assembly includes a first lead screw (27) and a first bevel gear (30). A first guide groove (26) is formed at the top of the workbench (1). The first lead screw (27) is rotatably installed in the first guide groove (26). A first guide block (19) is threadedly connected to the first lead screw (27). The first guide block (19) is slidably connected to the first guide groove (26), and the top of the first guide block (19) is fixedly connected to the sliding plate (8). One end of the first lead screw (27) extends into the chute (20). The first bevel gear (30) is fixedly arranged at one end of the first lead screw (27) located in the chute (20). A second bevel gear (31) meshing with the first bevel gear (30) is fixedly arranged on the driving lead screw (21).

6. The fatigue strength test device for the automotive brake disc of intelligent manufacturing according to claim 5, wherein The detection device includes a movable plate (12). The movable plate (12) is slidably installed at the top of the workbench (1). A second transmission assembly for driving the movable plate (12) to move is arranged at the top of the workbench (1). Two symmetrically arranged detection rods (34) are slidably arranged at the top of the movable plate (12). A plurality of pressure sensors (35) are arranged on the opposite sides of the two detection rods (34) along their lengths. An adjustment assembly for driving the two detection rods (34) to move towards or away from each other is arranged on the movable plate (12).

7. The fatigue strength test device for an automotive brake disc in intelligent manufacturing according to claim 6, characterized in that, The second transmission assembly includes a second lead screw (29) and a third bevel gear (32). A second guide groove (28) is formed at the top of the workbench (1). The second lead screw (29) is rotatably arranged in the second guide groove (28). A second guide block (33) is threadedly connected to the second lead screw (29). The second guide block (33) is slidably connected to the second guide groove (28), and the top of the second guide block (33) is fixedly connected to the movable plate (12). One end of the second lead screw (29) extends into the chute (20). The third bevel gear (32) is fixedly arranged at one end of the second lead screw (29) located in the chute (20). The third bevel gear (32) meshes with the second bevel gear (31).

8. The fatigue strength test device for automobile brake discs of intelligent manufacturing according to claim 6, characterized in that, The adjustment assembly includes a third motor (38) and a double-headed threaded rod (37). A long groove (36) is formed at the top of the movable plate (12). The double-headed threaded rod (37) is rotatably arranged in the long groove (36). The double-headed threaded rod (37) is threadedly connected to the two detection rods (34). The two detection rods (34) are slidably connected to the long groove (36). The third motor (38) is fixedly arranged on the movable plate (12). The output end of the third motor (38) is fixedly connected to the double-headed threaded rod (37).

9. The fatigue strength test device for an automotive brake disc of intelligent manufacturing according to claim 1, characterized in that, A first baffle (11) is fixedly arranged on one side of the support plate (2). A second baffle (10) is arranged on one side of the moving plate (3). The second baffle (10) abuts against the first baffle (11) to block the particles splashed during the test of the brake disc (5).

10. The fatigue strength test device for the automotive brake disc of intelligent manufacturing according to claim 9, characterized in that, A limit post (40) is fixedly arranged on the inner side of the second baffle (10). The limit post (40) cooperates with the limit hole (17) to limit the limit plate (6). Elastic telescopic rods (39) are symmetrically and fixedly arranged on one side of the moving plate (3). The elastic telescopic rods (39) are fixedly connected to the second baffle (10).

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