Drilling equipment for machining automobile brake calipers

Abstract

The invention discloses drilling equipment for machining of automobile brake calipers, and relates to the technical field of drilling equipment. Comprising a fixing plate, the fixing plate is a semicircular plate, the fixing plate is fixedly connected with the inner wall of a through hole, the top of the fixing plate is fixedly connected with a fixing ring, the top of the fixing plate is slidably connected with a round rod, the fixing ring sleeves the outer side of the round rod, the top of the round rod is fixedly connected with a contact block, the contact block is a hemisphere, and the outer side of the round rod is sleeved with a compression spring. According to the drilling equipment for machining the automobile brake calipers, a middle plate moves in the direction away from a round rod under the supporting action of connecting rods and fixing rods at the two ends, so that the middle plate makes contact with the inner side wall of the calipers, and the interior of the calipers is supported and fixed through a plurality of contact blocks and the middle plate; the inner wall support counteracts cutting force through rigid fixation, it is ensured that the hole position and depth are accurate, and the situation that a drilled hole mistakenly penetrates through a piston cavity, an oil way channel and other core areas due to deformation is avoided.

Description

Technical Field

[0001] This invention relates to the field of drilling equipment technology, specifically to a drilling device for machining automotive brake calipers. Background Technology

[0002] Automotive brake calipers are a technical term for disc brakes. They are the components that apply force to the brake disc, which protrudes from the outside of the brake pad. They are mainly used for braking and can help the wheels slow down, stop, or maintain a stopped state. They are an indispensable and important part of the braking system. Caliper brackets are a component of automotive brake calipers, and with the continuous development of automotive brake caliper technology, there will be more and more matching drilling devices.

[0003] In the process of machining brake calipers, existing drilling equipment often encounters problems. Because brake calipers are irregular parts with a hollow center and have tiny uneven parts inside, the irregular bottom surface needs to be fixed to ensure that the drilling end face remains horizontal. Often, the fixing of the irregular parts is unstable, resulting in inaccurate drilling position, unqualified drilling, scrap, and waste of raw materials. Summary of the Invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a drilling device for processing automotive brake calipers, comprising a platform, a through hole in the middle of the top of the platform, a slide rail fixedly connected to the top of the platform, a vertical plate fixedly connected to the rear end face of the platform, a top plate fixedly connected to the top of the vertical plate, and a hydraulic cylinder fixedly connected to the top of the top plate. Drilling assembly, which is slidably connected to the slide rail; The pressure assembly is fixedly connected to the output end of the hydraulic cylinder, and the output end of the hydraulic cylinder passes through the top plate. Fixed components are fixedly connected to the platform; There are two slide rails, which are symmetrically arranged around the through hole. There are also two drilling assemblies, which are symmetrically arranged around the fixing assembly. The fixing assembly is located inside the through hole, and a filter plate is fixedly connected to the inner wall of the through hole. The filter plate is located below the fixing assembly, and the pressure assembly is located above the fixing assembly.

[0005] The fixing component includes a fixing plate, which is a semi-circular plate. The fixing plate is fixedly connected to the inner wall of the through hole. A fixing ring is fixedly connected to the top of the fixing plate, and a round rod is slidably connected to the top of the fixing plate. The fixing ring is sleeved on the outside of the round rod. Because the caliper material, such as aluminum alloy or cast iron, will bear the radial cutting force of the drill bit during drilling, if the inner wall is not supported, the thin-walled area is prone to slight deformation due to the force, resulting in hole position displacement, such as deviation from the preset coordinates or exceeding the hole diameter tolerance. The caliper to be processed is placed on the fixing component. At this time, the contact block is located inside the caliper. The hydraulic cylinder works to drive the pressure component to move downward, so that the pressure component contacts the top of the caliper and... The compression force causes the spring to compress, which in turn causes the round rod to move the contact block downwards. Simultaneously, the round rod and the contact block move the ring downwards, causing the intermediate plate to move away from the round rod under the support of the connecting rods and the fixed rod at both ends. This allows the intermediate plate to contact the inner sidewall of the caliper. The internal structure of the caliper is supported and fixed by multiple contact blocks and the intermediate plate. The rigid fixation of the inner wall counteracts the cutting force, ensuring accurate hole position and depth, and preventing the drilling from accidentally penetrating core areas such as the piston chamber and oil passage due to deformation. A contact block is fixedly connected to the top of the round rod. The contact block is hemispherical, and a compression spring is sleeved on the outer side of the round rod.

[0006] Preferably, the outer side of the fixing plate is provided with guide grooves, and there are multiple guide grooves. The multiple guide grooves are divided into two groups, and the two groups of guide grooves are set on both sides of the fixing plate. There are three round rods, and the three round rods are evenly arranged on the arc edge of the fixing plate. The inner wall of the caliper is usually an irregular arc or curved surface. Utilizing the elastic properties of the compression spring, the internal arc support can be adjusted to fit the arc contour of the inner wall of the caliper, increasing the contact area. The support force is distributed through multiple points of arc distribution, avoiding the inner wall depression or deformation caused by local stress concentration. At the same time, the arc fit forms a ring-like constraint, preventing the caliper from rotating or shifting due to radial cutting force during drilling. The fixing ring is slidably connected to the round rods. There are two fixing rods rotatably connected to the outer side of the fixing ring. The two fixing rods are evenly distributed on the fixing ring. The end of the fixing rod away from the fixing ring is rotatably connected to the intermediate plate. The end of the intermediate plate away from the fixing rod is rotatably connected to the connecting rod. A circular ring is fitted on the outer side of the rod, and the inner wall of the ring is slidably connected to the outer side of the rod. The end of the connecting rod away from the middle plate is rotatably connected to the circular ring. The two ends of the compression spring are fixedly connected to the circular ring and the fixed ring, respectively. A spring plate is fixedly connected to the outer side of the middle plate, and the two ends of the spring plate are fixedly connected to the two middle plates on both sides of the rod, respectively. An elastic plate is fixedly connected to the outer side of the middle plate near the connecting rod. A caliper is installed, and the contact block and the two arc plates on both sides fix the middle and the two sides of the caliper, respectively. The three-point support can achieve full degree of freedom constraint on the inner cavity of the caliper. Especially when drilling, whether it is the radial cutting force or the axial feed force, the side support can offset the lateral force, and the middle support can balance the axial force. The three form a stability, which prevents the caliper from shifting during the processing and can distribute the pressure, thereby effectively avoiding thin-walled depressions or cracks caused by excessive local stress. An arc plate is fixedly connected to the side of the elastic plate away from the middle plate.

[0007] Preferably, the pressure assembly includes a limit rod, the output end of the hydraulic cylinder is fixedly connected to the limit rod, a limit plate is fixedly connected to the end of the limit rod away from the hydraulic cylinder, a through groove is formed in the middle of the side of the limit plate away from the limit rod, and an annular groove is formed on the outer side of the limit plate. Multiple annular grooves are evenly arranged on the limit plate. A side plate is slidably connected to the outer side of the limit plate, and a cylinder is fixedly connected to the side of the side plate near the limit plate. The cylinder is located inside the annular groove. During drilling, the feed action of the drill bit generates an upward axial force. If only internal support is relied upon, the caliper may... Axial force lifting causes deviation in hole depth or tilting of the hole axis. Placing the caliper on the fixing assembly, the hydraulic cylinder moves the limit rod downwards, causing the limit rod to move the limit plate downwards. This causes the limit plate to bring the bottom contact rod into contact with the top outer surface of the caliper. At this point, pressure is applied to the top of the caliper, and the downward pressure and upward lifting axial force create a force balance, firmly pressing the caliper against the bottom or internal support. This ensures that the axial offset of the caliper during drilling is within the error range. There are two side plates, symmetrically arranged on either side of the limit plate. On one side, a cylinder is located at one end of the side plate. A contact rod, made of rubber, is fixedly connected to the end of the side plate away from the cylinder. The contact rod is perpendicular to the limiting plate, and its two ends are fixedly connected to the two side plates on either side of the limiting plate. A return spring is fixedly connected to the middle of the side plate closest to the contact rod. When the hydraulic cylinder operates, it moves the limiting rod and the limiting plate downward, causing the bottom contact rod to contact the outer surface of the caliper. The return spring is compressed, making the contact rod and the caliper in close contact. Because the outer surface of the caliper often has curvature due to functional design, such as the edge of the caliper body, or protrusions, such as oil pipe interfaces, For reinforcing ribs or model differences, such as the different outer contours of multi-piston and single-piston calipers, multiple contact rods are set at the bottom of the limiting plate. Through independent elastic deformation, they can fit the surface shape of the corresponding area. When a certain area has a protrusion, the compression of the return spring on the corresponding contact rod increases. When a certain area is concave, the return spring on the corresponding contact rod extends to compensate. In this way, each contact point can be stressed, avoiding local suspension or single-point overload caused by poor fit of the rigid pressure plate. This ensures that the overall force of the caliper is balanced. The end of the return spring away from the contact rod is fixedly connected to the inner wall of the through groove.

[0008] Preferably, the drilling assembly includes a slider, which is slidably connected to the top of a slide rail. A fixed frame is fixedly connected to the top of the slider, and a screw is rotatably connected inside the fixed frame. A motor is fixedly connected to the end of the fixed frame, and the output end of the motor passes through the fixed frame and extends into the interior of the fixed frame. The output end of the motor is fixedly connected to the screw. A movable plate is slidably connected inside the fixed frame. After the caliper is fixed, the slider drives the top fixed frame to slide on the top of the slide rail, causing the slider to move the drill bit closer to the caliper. At the same time, the motor is powered by an external power source, and the motor drives the screw to rotate, causing the screw to move the movable plate. This causes the movable plate to move the drill bit to the designated processing position. At this time, the motor is powered by an external power source, and the motor drives the positioning seat to rotate. Subsequently, the positioning seat drives the connecting seat to rotate through the misalignment between the locking block and the fixed block, thereby the connecting seat drives the drill bit to drill the caliper. Since there may be radial offset, axial movement, or angular tilt between the motor output shaft and the drill bit during installation, the connecting seat, positioning seat, locking block, intermediate block, and fixed block are provided, and the deformation of the intermediate block can compensate for this. These deviations ensure a stable torque transmission path, preventing vibrations, abnormal noises, or shaft wear caused by misalignment of the shafts. This ensures uniform drill bit rotation and improves drilling accuracy. The moving plate is threadedly connected to the screw. A motor is fixedly connected to the side of the moving plate away from the fixed components, with the motor's output end passing through the moving plate. A housing is fixedly connected to the side of the moving plate away from the motor, with a connecting seat inside the housing. A drill bit is fixedly connected to the outside of the connecting seat, passing through the housing and rotatably connected to both the drill bit and the housing. A fixing block is fixedly connected to the side of the connecting seat away from the drill bit, with the fixing block and locking block offset. There are multiple fixing blocks evenly distributed on the connecting seat. A middle block, made of rubber, is fitted around the outside of each fixing block. A positioning seat is located at the end of the middle block away from the connecting seat, and it is fixedly connected to the motor's output end. A locking block is fixedly connected to the edge of the positioning seat near the middle block. A bracket is fixedly connected to the top of the housing, with a cooling pipe fixedly connected inside. During drilling, coolant is connected to the cooling pipe to cool the working drill bit and workpiece.

[0009] This invention provides a drilling device for machining automotive brake calipers. It has the following advantages: 1. The drilling equipment used for machining automotive brake calipers supports and fixes the inside of the caliper through multiple contact blocks and intermediate plates. The inner wall support is rigidly fixed to offset the cutting force, ensuring accurate hole position and depth, and avoiding drilling into core areas such as piston chamber and oil passage due to deformation.

[0010] II. The drilling equipment used for machining automotive brake calipers utilizes the elastic properties of compression springs to increase the contact area of ​​the internal arc support by conforming to the contour of the caliper's inner wall. The support force is dispersed through multiple points distributed in an arc shape, avoiding the inner wall depression or deformation caused by local stress concentration. At the same time, the arc fit forms a ring-like constraint, preventing the caliper from rotating or shifting due to radial cutting force during drilling.

[0011] Third, the drilling equipment used for machining automotive brake calipers can achieve full degree of freedom constraint on the caliper's inner cavity through three-point support. Especially during drilling, whether it is the radial cutting force from the side or the axial feed force from the front and back, the two side supports can offset the lateral force, and the middle support can balance the axial force. The three form a stable structure, preventing the caliper from shifting during machining and dispersing the pressure, thereby effectively avoiding thin-walled depressions or cracks caused by excessive local stress.

[0012] IV. The drilling equipment used for processing automotive brake calipers moves the limiting plate downward through the limiting rod, thereby causing the limiting plate to bring the bottom contact rod into contact with the top outer surface of the caliper. At this time, by applying pressure to the top of the caliper, the downward pressure and the upward lifting axial force are used to form a force balance, firmly pressing the caliper onto the bottom or internal support, ensuring that the axial offset of the caliper is within the error range during the drilling process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the structure of the fixing component of the present invention; Figure 4 This is a partial structural schematic diagram of the fixing component of the present invention; Figure 5 This is a partial top view of the fixing component of the present invention. Figure 6 This is a schematic diagram of the pressure component of the present invention; Figure 7 This is a partial structural schematic diagram of the pressure component of the present invention; Figure 8 This is a schematic diagram of the drilling assembly of the present invention; Figure 9 This is a partial cross-sectional structural schematic diagram of the drilling assembly of the present invention; Figure 10 This is a schematic diagram of the positioning base of the present invention; Figure 11 This is a schematic diagram of the connector of the present invention.

[0014] In the diagram: 1. Platform; 2. Through hole; 3. Fixing assembly; 31. Fixing plate; 32. Guide channel; 33. Fixing ring; 34. Fixing rod; 35. Intermediate plate; 36. Connecting rod; 37. Circular ring; 38. Circular rod; 39. Contact block; 310. Arc plate; 311. Spring plate; 312. Compression spring; 313. Elastic plate; 4. Slide rail; 5. Drilling assembly; 51. Slider; 52. Fixing frame; 53. Screw; 54. Moving plate; 55. Motor 56. Motor; 57. Housing; 58. Drill bit; 59. Connecting seat; 510. Cooling pipe; 511. Bracket; 512. Fixing block; 513. Intermediate block; 514. Positioning seat; 515. Locking block; 6. Pressure assembly; 61. Limiting rod; 62. Limiting plate; 63. Through groove; 64. Annular groove; 65. Contact rod; 66. Return spring; 67. Side plate; 68. Cylinder; 7. Vertical plate; 8. Top plate; 9. Hydraulic cylinder; 10. Filter plate. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0016] First embodiment, such as Figures 1 to 5 As shown, the present invention provides a technical solution: a drilling device for processing automotive brake calipers, including a platform 1, a through hole 2 opened at the middle of the top of the platform 1, a slide rail 4 fixedly connected to the top of the platform 1, a vertical plate 7 fixedly connected to the rear end face of the platform 1, a top plate 8 fixedly connected to the top of the vertical plate 7, and a hydraulic cylinder 9 fixedly connected to the top of the top plate 8. Drilling assembly 5 is slidably connected to slide rail 4; Pressure component 6 is fixedly connected to the output end of hydraulic cylinder 9, and the output end of hydraulic cylinder 9 passes through top plate 8; Fixed component 3 is fixedly connected to platform 1; There are two slide rails 4, which are symmetrically arranged around the through hole 2. There are two drilling components 5, which are symmetrically arranged around the fixing component 3. The fixing component 3 is located inside the through hole 2. A filter plate 10 is fixedly connected to the inner wall of the through hole 2. The filter plate 10 is located below the fixing component 3. The pressure component 6 is located above the fixing component 3.

[0017] The fixing component 3 includes a fixing plate 31, which is a semi-circular plate. The fixing plate 31 is fixedly connected to the inner wall of the through hole 2. A fixing ring 33 is fixedly connected to the top of the fixing plate 31, and a round rod 38 is slidably connected to the top of the fixing plate 31. The fixing ring 33 is sleeved on the outside of the round rod 38. Since the caliper material, such as aluminum alloy or cast iron, will bear the radial cutting force of the drill bit during drilling, if the inner wall is not supported, the thin-walled area is prone to slight deformation due to the force, resulting in hole position displacement, such as deviation from the preset coordinates or hole diameter tolerance exceeding the tolerance. The caliper to be processed is placed on the fixing component 3. At this time, the contact block 39 is located inside the caliper. The hydraulic cylinder 9 works to drive the pressure component 6 to move downward, so that the pressure component 6 contacts the top of the caliper and generates extrusion. The compression spring 312 is compressed, causing the round rod 38 to move the contact block 39 downward. At the same time, the round rod 38 and the contact block 39 move the ring 37 downward, causing the intermediate plate 35 to move away from the round rod 38 under the support of the connecting rods 36 at both ends and the fixing rod 34. This causes the intermediate plate 35 to contact the inner side wall of the caliper. The internal structure of the caliper is supported and fixed by multiple contact blocks 39 and the intermediate plate 35. The inner wall support is rigidly fixed to offset the cutting force, ensuring accurate hole position and depth, and avoiding the drilling of core areas such as piston chamber and oil passage due to deformation. The top of the round rod 38 is fixedly connected to the contact block 39, which is a hemispherical shape. The outer side of the round rod 38 is fitted with a compression spring 312.

[0018] The outer side of the fixing plate 31 is provided with guide grooves 32. There are multiple guide grooves 32, which are divided into two groups. The two groups of guide grooves 32 are set on both sides of the fixing plate 31. There are three round rods 38, which are evenly arranged on the arc edge of the fixing plate 31. The inner wall of the caliper is usually an irregular arc or curved surface. By utilizing the elastic properties of the compression spring 312, the internal arc support can be adjusted to conform to the arc contour of the inner wall of the caliper, increasing the contact area. The support force is distributed through multiple points of arc distribution, avoiding localized support. Stress concentration causes inner wall indentation or deformation. Simultaneously, an arc-shaped fit forms a circumferential constraint, preventing the caliper from rotating or shifting due to radial cutting force during drilling. The fixing ring 33 is slidably connected to the round rod 38. Two fixing rods 34 are rotatably connected to the outer side of the fixing ring 33, evenly distributed on the fixing ring 33. An intermediate plate 35 is rotatably connected to the end of the fixing rod 34 furthest from the fixing ring 33. A connecting rod 36 is rotatably connected to the end of the intermediate plate 35 furthest from the fixing rod 34. The outer side of the round rod 38... A circular ring 37 is provided on the side sleeve. The inner wall of the circular ring 37 is slidably connected to the outer side of the circular rod 38. The end of the connecting rod 36 away from the intermediate plate 35 is rotatably connected to the circular ring 37. The two ends of the compression spring 312 are fixedly connected to the circular ring 37 and the fixed ring 33, respectively. A spring plate 311 is fixedly connected to the outer side of the intermediate plate 35. The two ends of the spring plate 311 are fixedly connected to the two intermediate plates 35 on both sides of the circular rod 38, respectively. An elastic plate 313 is fixedly connected to the outer side of the intermediate plate 35 near the connecting rod 36. A caliper, a contact block 39, and two arcs on both sides are installed. Plate 310 fixes the middle and both sides of the caliper respectively. The three-point support can achieve full degree of freedom constraint on the inner cavity of the caliper. Especially when drilling, whether it is the radial cutting force or the axial feed force, the side support can offset the lateral force, and the middle support can balance the axial force. The three form a stability, which can prevent the caliper from shifting during the processing and can also distribute the pressure. This can effectively prevent thin-walled depressions or cracks caused by excessive local stress. The side of the elastic plate 313 away from the middle plate 35 is fixedly connected to the arc plate 310.

[0019] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 6 to 7As shown, the pressure assembly 6 includes a limiting rod 61. The output end of the hydraulic cylinder 9 is fixedly connected to the limiting rod 61. A limiting plate 62 is fixedly connected to the end of the limiting rod 61 away from the hydraulic cylinder 9. A through groove 63 is provided in the middle of the side of the limiting plate 62 away from the limiting rod 61. An annular groove 64 is provided on the outer side of the limiting plate 62. There are multiple annular grooves 64, which are evenly arranged on the limiting plate 62. A side plate 67 is slidably connected to the outer side of the limiting plate 62. A cylinder 68 is fixedly connected to the side plate 67 near the limiting plate 62. The cylinder 68 is located inside the annular groove 64. During drilling, the feed action of the drill bit will generate an upward axial force. If only... Relying on internal support, the caliper may be lifted due to axial force, leading to deviation in hole depth or tilting of the hole axis. Placing the caliper on the fixing component 3, the hydraulic cylinder 9 operates, causing the limiting rod 61 to move downwards. This causes the limiting rod 61 to move the limiting plate 62 downwards, thereby causing the limiting plate 62 to bring the bottom contact rod 65 into contact with the top outer surface of the caliper. At this point, by applying pressure to the top of the caliper, a force balance is formed using the downward pressure and the upward lifting axial force, firmly pressing the caliper against the bottom or internal support. This ensures that the axial offset of the caliper during drilling is within the error range. There are two side plates 67, symmetrically arranged on both sides of the limiting plate 62. On one side, cylinder 68 is located at one end of side plate 67. A contact rod 65 is fixedly connected to the end of side plate 67 away from cylinder 68. The contact rod 65 is made of rubber and is perpendicular to the limiting plate 62. The two ends of the contact rod 65 are fixedly connected to the two side plates 67 on both sides of the limiting plate 62. A return spring 66 is fixedly connected to the middle of the side of the contact rod 65 closest to the side plate 67. When the hydraulic cylinder 9 works, it drives the limiting rod 61 and the limiting plate 62 to move downward, so that the bottom contact rod 65 contacts the outer surface of the caliper. The return spring 66 is compressed, so that the contact rod 65 is in close contact with the caliper. Because the outer surface of the caliper often has a curvature due to functional design, such as the caliper body. Edges, protrusions such as oil pipe interfaces, reinforcing ribs, or model differences such as the different outer contours of multi-piston and single-piston calipers can be addressed by setting multiple contact rods 65 at the bottom of the limiting plate 62. These rods can independently elastically deform to fit the surface morphology of the corresponding areas. When a certain area has a protrusion, the compression of the return spring 66 on the corresponding contact rod 65 increases. When a certain area is concave, the return spring 66 on the corresponding contact rod 65 elongates to compensate. This ensures that each contact point is stressed, avoiding local suspension or single-point overload caused by poor fit of the rigid pressure plate. This ensures that the overall force on the caliper is balanced. The end of the return spring 66 away from the contact rod 65 is fixedly connected to the inner wall of the through groove 63.

[0020] The third embodiment is based on embodiments one and two; please refer to [link / reference]. Figures 8 to 11As shown, the drilling assembly 5 includes a slider 51, which is slidably connected to the top of the slide rail 4. A fixed frame 52 is fixedly connected to the top of the slider 51. A screw 53 is rotatably connected inside the fixed frame 52. A motor 55 is fixedly connected to the end of the fixed frame 52. The output end of the motor 55 passes through the fixed frame 52 and extends into the interior of the fixed frame 52. The output end of the motor 55 is fixedly connected to the screw 53. A movable plate 54 is slidably connected inside the fixed frame 52. After the caliper is fixed, the slider 51 drives the fixed frame 52 at the top to slide on the top of the slide rail 4, causing the slider 51 to drive the drill bit 58 closer to the caliper. At the same time, the motor 55 is powered by an external power source, and the motor 55 drives the screw 53 to rotate. The movement of the screw 53 causes the moving plate 54 to move, which in turn moves the drill bit 58 to the designated machining position. At this time, the motor 56, powered by an external power source, operates, causing the positioning seat 514 to rotate. Subsequently, the positioning seat 514, through the misalignment between the locking block 515 and the fixing block 512, drives the connecting seat 59 to rotate. This, in turn, causes the connecting seat 59 to drive the drill bit 58 to drill a hole in the caliper. Since there may be radial offset, axial movement, or angular tilt between the output shaft of the motor 56 and the drill bit 58 during installation, the connecting seat 59, positioning seat 514, locking block 515, intermediate block 513, and fixing block 512 are used to compensate for these deviations through the deformation of the intermediate block 513 itself. The torque transmission path remains stable, avoiding vibration, abnormal noise, or shaft wear caused by misalignment of the shafts, ensuring uniform rotation of the drill bit 58, and improving drilling accuracy. The moving plate 54 is threadedly connected to the screw 53. A motor 56 is fixedly connected to the side of the moving plate 54 away from the fixed component 3. The output end of the motor 56 passes through the moving plate 54. A housing 57 is fixedly connected to the side of the moving plate 54 away from the motor 56. A connecting seat 59 is provided inside the housing 57. The drill bit 58 is fixedly connected to the outside of the connecting seat 59. The drill bit 58 passes through the housing 57 and is rotatably connected to the housing 57. The connecting seat 59 is rotatably connected to the housing 57. A fixing block 512 is fixedly connected to the side of the connecting seat 59 away from the drill bit 58. The fixing block 512 and the locking block 515 are staggered. There are multiple fixing blocks 512, which are evenly distributed on the connecting seat 59. An intermediate block 513 is sleeved on the outside of the fixing block 512. The intermediate block 513 is made of rubber. A positioning seat 514 is set at the end of the intermediate block 513 away from the connecting seat 59. The positioning seat 514 is fixedly connected to the output end of the motor 56. A locking block 515 is fixedly connected to the edge of the positioning seat 514 near the intermediate block 513. A bracket 511 is fixedly connected to the top of the housing 57. A cooling pipe 510 is fixedly connected inside the bracket 511. When drilling, the cooling pipe 510 is connected to coolant to cool the working drill bit 58 and the workpiece.

[0021] In use, the caliper to be processed is placed on the fixing component 3. At this time, the contact block 39 is located inside the caliper. The hydraulic cylinder 9 works to drive the limit rod 61 to move downward, so that the limit rod 61 drives the limit plate 62 to move downward. Thus, the limit plate 62 drives the bottom contact rod 65 to contact the top outer surface of the caliper. At this time, by applying pressure to the top of the caliper, the downward pressure and the upward lifting axial force are used to form a force balance, and the caliper is firmly pressed against the bottom or internal support.

[0022] This compresses the spring 312, causing the round rod 38 to move the contact block 39 downwards. Simultaneously, the round rod 38 and the contact block 39 move the ring 37 downwards, causing the intermediate plate 35 to move away from the round rod 38 under the support of the connecting rods 36 at both ends and the fixing rod 34. This causes the intermediate plate 35 to contact the inner sidewall of the caliper, and the internal structure of the caliper is supported and fixed by the multiple contact blocks 39 and the intermediate plate 35.

[0023] After the caliper is fixed, the slider 51 drives the top fixing frame 52 to slide on the top of the slide rail 4, so that the slider 51 drives the drill bit 58 to approach the caliper. At the same time, the motor 55 is powered by an external power source and drives the screw 53 to rotate, so that the screw 53 drives the moving plate 54 to move, thereby moving the moving plate 54 to move the drill bit 58 to the designated processing position. At this time, the motor 56 is powered by an external power source and drives the positioning seat 514 to rotate. Then, the positioning seat 514 drives the connecting seat 59 to rotate through the misalignment between the locking block 515 and the fixing block 512, so that the connecting seat 59 drives the drill bit 58 to drill the caliper. During drilling, the cooling pipe 510 is connected to external coolant to cool the working drill bit 58 and the workpiece.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drilling device for machining automotive brake calipers, characterized in that, Include: Platform (1), the top of the platform (1) is provided with a through hole (2) in the middle, the top of the platform (1) is fixedly connected with a slide rail (4), the rear end surface of the platform (1) is fixedly connected with a vertical plate (7), the top of the vertical plate (7) is fixedly connected with a top plate (8), the top of the top plate (8) is fixedly connected with a hydraulic cylinder (9); Drilling assembly (5), the drilling assembly (5) is connected with the slide rail (4) in sliding mode; Pressure assembly (6), the pressure assembly (6) is fixedly connected with the output end of the hydraulic cylinder (9), and the output end of the hydraulic cylinder (9) penetrates the top plate (8); Fixed assembly (3), the fixed assembly (3) is fixedly connected with the platform (1); Wherein, the fixed assembly (3) includes a fixed plate (31), the fixed plate (31) is provided as a semicircular plate, the fixed plate (31) is fixedly connected with the inner wall of the through hole (2), the top of the fixed plate (31) is fixedly connected with a fixed ring (33), the top of the fixed plate (31) is connected with a circular rod (38) in sliding mode, the fixed ring (33) is sleeved on the outer side of the circular rod (38), the top of the circular rod (38) is fixedly connected with a contact block (39), and the outer side of the circular rod (38) is sleeved with a compression spring (312).

2. A drilling apparatus for machining of a brake caliper of a vehicle according to claim 1, characterized in that: The number of the slide rail (4) is two, the two slide rails (4) are symmetrically arranged with the through hole (2) as the center, the number of the drilling assembly (5) is two, the two drilling assemblies (5) are symmetrically arranged with the fixed assembly (3) as the center, the fixed assembly (3) is located in the inside of the through hole (2), the inner wall of the through hole (2) is fixedly connected with a filter plate (10), the filter plate (10) is located below the fixed assembly (3), and the pressure assembly (6) is located above the fixed assembly (3).

3. The drilling apparatus for machining a brake caliper of an automobile as set forth in claim 1, characterized in that: The outer side of the fixed plate (31) is provided with a flow guide groove (32), the number of the flow guide groove (32) is multiple, the multiple flow guide grooves (32) are divided into two groups, the two groups of flow guide grooves (32) are arranged on the two sides of the fixed plate (31), the number of the circular rod (38) is three, the three circular rods (38) are uniformly arranged on the arc edge of the fixed plate (31), the fixed ring (33) is connected with the circular rod (38) in sliding mode, the outer side of the fixed ring (33) is rotatably connected with a fixed rod (34), the number of the fixed rod (34) is two, and the two fixed rods (34) are uniformly distributed on the fixed ring (33).

4. The drilling apparatus for machining a brake caliper of an automobile as set forth in claim 3, characterized in that: The end, away from the fixed ring (33), of the fixed rod (34) is rotatably connected with an intermediate plate (35), the end, away from the fixed rod (34), of the intermediate plate (35) is rotatably connected with a connecting rod (36), the outer side of the circular rod (38) is sleeved with a circular ring (37), the inner wall of the circular ring (37) is connected with the outer side of the circular rod (38) in sliding mode, the end, away from the intermediate plate (35), of the connecting rod (36) is rotatably connected with the circular ring (37), and the two ends of the compression spring (312) are fixedly connected with the circular ring (37) and the fixed ring (33) respectively.

5. A drilling apparatus for machining a brake caliper of a vehicle according to claim 4, characterized in that: The outer side of the intermediate plate (35) is fixedly connected with the elastic plate (311), the two ends of the elastic plate (311) are fixedly connected with the two intermediate plates (35) on the two sides of the round rod (38), the outer side of the intermediate plate (35) close to one end of the connecting rod (36) is fixedly connected with the elastic plate (313), and the side of the elastic plate (313) away from the intermediate plate (35) is fixedly connected with the arc plate (310).

6. A drilling apparatus for machining of an automotive brake caliper as defined in claim 1, characterized in that: The pressure assembly (6) comprises a limiting rod (61), the output end of the hydraulic cylinder (9) is fixedly connected with the limiting rod (61), one end of the limiting rod (61) away from the hydraulic cylinder (9) is fixedly connected with a limiting plate (62), a through groove (63) is formed in the middle of the side of the limiting plate (62) away from one end of the limiting rod (61), a ring groove (64) is formed on the outer side of the limiting plate (62), a plurality of ring grooves (64) are uniformly arranged on the limiting plate (62), and the outer side of the limiting plate (62) is slidably connected with a side plate (67).

7. A drilling apparatus for machining a brake caliper of a vehicle according to claim 6, characterized in that: The side of the side plate (67) close to the limiting plate (62) is fixedly connected with a cylinder (68), the cylinder (68) is located in the ring groove (64), the number of the side plates (67) is two, the two side plates (67) are symmetrically arranged on the two sides of the limiting plate (62), the cylinder (68) is located at one end of the side plate (67), one end of the side plate (67) away from the cylinder (68) is fixedly connected with a contact rod (65), the contact rod (65) is perpendicular to the limiting plate (62), the two ends of the contact rod (65) are fixedly connected with the two side plates (67) on the two sides of the limiting plate (62), and the middle of the side of the contact rod (65) close to the side plate (67) is fixedly connected with a return spring (66).

8. The drilling apparatus for machining of an automotive brake caliper according to claim 1, characterized in that: The drilling assembly (5) comprises a sliding block (51), the sliding block (51) is slidably connected with the top of the sliding rail (4), the top of the sliding block (51) is fixedly connected with a fixed frame (52), the inside of the fixed frame (52) is rotatably connected with a screw rod (53), one end of the fixed frame (52) is fixedly connected with a motor (55), the output end of the motor (55) penetrates through the fixed frame (52) and extends into the inside of the fixed frame (52), the output end of the motor (55) is fixedly connected with the screw rod (53), and the inside of the fixed frame (52) is slidably connected with a moving plate (54).

9. A drilling apparatus for machining a brake caliper of a vehicle according to claim 8, characterized in that: The side away from the fixed assembly (3) of the moving plate (54) is fixedly connected with a motor (56), the output end of the motor (56) penetrates the moving plate (54), the side away from the motor (56) of the moving plate (54) is fixedly connected with a shell (57), the inside of the shell (57) is provided with a connecting seat (59), the outside of the connecting seat (59) is fixedly connected with a drill bit (58), the drill bit (58) penetrates the shell (57), the drill bit (58) is rotatably connected with the shell (57), and the connecting seat (59) is rotatably connected with the shell (57).

10. A drilling apparatus for machining a brake caliper of a vehicle according to claim 9, characterized in that: The side away from the drill bit (58) of the connecting seat (59) is fixedly connected with a fixed block (512), a plurality of fixed blocks (512) are uniformly distributed on the connecting seat (59), the outside of the fixed block (512) is sleeved with an intermediate block (513), the intermediate block (513) is made of rubber, one end away from the connecting seat (59) of the intermediate block (513) is provided with a positioning seat (514), the positioning seat (514) is fixedly connected with the output end of the motor (56), the side edge of the positioning seat (514) close to the intermediate block (513) is fixedly connected with a clamping block (515), the top of the shell (57) is fixedly connected with a support (511), and the inside of the support (511) is fixedly connected with a cooling pipe (510).

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