Turbocharger bearing hole machining device
By designing a turbocharger bearing hole machining device, a reset component and a rotation mechanism are used to achieve clamping fine adjustment and rapid angle adjustment. An integrated drilling mechanism is used to capture debris, which solves the problems of low production efficiency and difficulty in guaranteeing precision in the existing technology, and improves machining efficiency and safety.
Patent Information
- Application Number
- CN202610401399.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-30
- Publication Date
- 2026-05-05
AI Technical Summary
Existing technologies for machining turbocharger bearing holes suffer from low production efficiency, difficulty in ensuring the accuracy of the included angle between holes, and poor consistency. Furthermore, the cost of expensive multi-axis CNC machine tools is high.
A turbocharger bearing hole machining device was designed, including a bracket, a moving mechanism, a rotating mechanism, and a drilling mechanism. The device achieves fine-tuning and flexible contact of the clamping through a reset component, enables rapid angle adjustment through the rotating mechanism, and integrates a dust collection sleeve and fiber bristles to capture metal debris.
It improved the yield and dimensional accuracy of finished products, increased production efficiency, reduced equipment failure rate and maintenance costs, and ensured operational safety and environmental cleanliness.
Smart Images
Figure CN121972990A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of bearing hole machining technology, specifically to a turbocharger bearing hole machining device. Background Technology
[0002] As a core component for improving engine efficiency, the manufacturing precision of the bearing housing in a turbocharger directly determines the overall performance and reliability of the engine. The bearing holes on the bearing housing are used to install and support the rotor shaft, and their positional accuracy, hole diameter, and hole wall quality requirements are extremely stringent. Currently, the machining of bearing holes in the bearing housing is typically performed using general-purpose CNC machine tools in conjunction with specialized fixtures, but a series of technical challenges still exist in actual production.
[0003] Bearing holes are typically circumferentially distributed or angularly distributed, requiring multiple indexing operations. Existing technologies often necessitate repeated workpiece disassembly and assembly or manual adjustment of fixture angles, resulting in low production efficiency and introducing new cumulative errors with each repositioning, making it difficult to guarantee the accuracy of the included angles between holes and leading to poor consistency. While expensive multi-axis CNC machine tools can solve this problem, the high equipment cost makes it undesirable. Therefore, a turbocharger bearing hole machining device is proposed to address the aforementioned issues. Summary of the Invention
[0004] The technical problem to be solved by the present invention is to provide a turbocharger bearing hole machining device to address the shortcomings of the prior art.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a turbocharger bearing hole machining device, including a machining table, and further comprising: The bracket is fixedly connected to the bottom of the processing table to support it. The moving mechanism, located above the processing table, is used to move the clamping mechanism mounted on the moving mechanism to clamp bearing rings of different lengths. A rotating mechanism, mounted on the moving mechanism, is used to adjust the rotation of the clamping mechanism to drive the bearing ring to rotate; The mobile mechanisms include: Two movable blocks are slidably positioned on either side above the processing table; Two rectangular holes are symmetrically opened on the machining table, one in front of the other, and a sliding column is fixedly connected to each rectangular hole; Multiple sliders, in pairs, are slidably connected to the outer wall of the sliding column and located inside a rectangular hole, connecting to the bottom of the moving block, and are used to push the moving block to move; Two connecting blocks are respectively located below the two moving blocks and connected to the bottom of the slider to push the slider to move; Two multi-stage push rods are fixedly connected to both sides of the bracket to push the two connecting blocks to move.
[0006] Preferably, the rotating mechanism includes: The curved rail is fixedly connected to the curved recess at the top of the moving block; The rotating disk has two annular rails fixedly connected to its outer wall and rotates on the arc-shaped rails.
[0007] Preferably, the clamping mechanism includes: A bidirectional screw is rotatably connected to a rotating disk, and a cavity is provided on one side of the rotating disk, with a transmission box installed at the center of the cavity shaft; The adjusting rod is rotatably connected to the rotating disk, and the middle part of the adjusting rod and the middle part of the bidirectional screw are both located in the transmission box, and the bidirectional screw is driven to rotate through the transmission box; Two movable blocks are respectively set on one side of the rotating disk, and the movable blocks are threadedly connected to the outer walls of the two bidirectional screws via adjusting blocks; Multiple limit bolts, in pairs, pass through two movable blocks and slide together in the sliding holes opened on the rotating disk; The pusher blocks are connected to the two movable blocks respectively, and push the two reset components set on the inner side of the rotating disk to clamp the bearing ring.
[0008] Preferably, the reset component includes: The limiting sleeve is fixedly connected to the rotating disk and is located on the side closest to the axis. The second movable block is slidably connected inside the limiting sleeve, and its top contacts the push block; Two fixed posts are fixedly connected to a rectangular groove opened in the movable block 2, and a rectangular block is slidably connected in the rectangular groove, and the rectangular block slides on the two fixed posts. Multiple springs are respectively sleeved on the outer wall of each fixed post and located on both sides of the rectangular block to reset the rectangular block; The clamping block is fixedly connected to the bottom of the rectangular block and is used to clamp the bearing ring.
[0009] Preferably, the reset component further includes: A fixed plate is fixedly connected to a limiting sleeve, and two limiting sliding pins are fixedly connected to the limiting sleeve; The limiting slide column is slidably connected to the sliding sleeve on the movable block two; Two springs are respectively fitted on the outer walls of the two limiting slides, located between the slide sleeve and the fixed plate, and are used to push the slide sleeve to move the movable block two upward.
[0010] Preferably, the rotating mechanism further includes: The inspection plate is bolted to the side of the rotating disk away from the bearing ring. Multiple mounting holes are respectively opened on the annular rail located on one side of the inspection plate, and limit posts are installed in the mounting holes; The stop lever is fixedly connected to the top of the processing table and abuts against the limit post to limit the rotation angle of the rotating mechanism.
[0011] Preferably, the processing table is equipped with a drilling mechanism for drilling holes in the bearing ring, the drilling mechanism comprising: The second multi-stage push rod is fixedly connected above the processing table; The motor housing is fixedly connected to the output end of the multi-stage push rod two, and the motor is installed inside the motor housing. The output end of the motor moves through the motor housing and is equipped with a cutting tool. The distance between the cutting tool and the bearing ring is adjusted by the multi-stage push rod two.
[0012] Preferably, the punching mechanism further includes: A dust collection sleeve is slidably fitted onto the outer wall of the motor housing, and an arc-shaped plate is fixedly connected to the top of the dust collection sleeve; The fiber hairs are located on the inner side of the arc-shaped plate. A return spring is provided at the bottom of the dust collection sleeve to push the dust collection sleeve upward and push the fiber hairs to adhere to the outer wall of the bearing ring.
[0013] The present invention, by adopting the above technical solution, can bring the following beneficial effects: 1. This turbocharger bearing hole machining device, through the set reset component, enables the clamping block to have the ability to make fine adjustments and float in both the radial and axial directions. This structure can automatically compensate for the manufacturing tolerance and slight out-of-roundness of the inner circle of the workpiece, ensuring that the clamping force is evenly distributed. This rigid transmission and flexible contact clamping method fundamentally avoids workpiece deformation and surface damage caused by over-positioning or rigid clamping. Especially for thin-walled bearing rings, it can significantly improve the machining yield and dimensional accuracy.
[0014] 2. This turbocharger bearing hole machining device, through the smooth rotation of a rotating disc on an arc-shaped rail and an adjustable angle limiting system composed of limiting posts and stop bars, allows the operator to quickly and accurately rotate the workpiece to multiple preset machining angles. This design eliminates the time spent on repeated disassembly and alignment of traditional fixtures, enabling the machining of all holes in a single setup. This significantly improves the production efficiency of machining multi-angle, evenly distributed holes and demonstrates excellent adaptability to machining requirements of different specifications.
[0015] 3. This turbocharger bearing hole machining device integrates a dust collection sleeve and flexible fiber bristles at the front end of the cutting tool through a drilling mechanism. It forms an effective sealed cavity at the machining point at the beginning of drilling, realizing the capture of metal chips at the source. It can effectively curb chip splashing and dust diffusion, not only ensuring the health and safety of operators and maintaining a clean working environment, but also avoiding wear and damage to precision components such as machine tool guides and lead screws caused by chips, thus reducing equipment failure rate and maintenance costs. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a bottom view of the present invention; Figure 3 This is a schematic diagram of the rotating mechanism structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the side structure of the present invention; Figure 6 This is a schematic diagram of the internal structure of the clamping mechanism of the present invention; Figure 7 This is a schematic diagram of the clamping mechanism of the present invention; Figure 8 This is a schematic cross-sectional view of the clamping mechanism of the present invention; Figure 9 For the present invention Figure 8 Enlarged structural diagram at point B.
[0017] In the diagram: 1. Processing table; 2. Support frame; 3. Moving mechanism; 31. Moving block; 32. Sliding column; 33. Sliding block; 34. Connecting block; 35. Multi-stage push rod one; 4. Rotating mechanism; 41. Arc-shaped rail; 42. Rotary disk; 43. Circular rail; 44. Stop bar; 45. Limiting post; 46. Inspection plate; 5. Clamping mechanism; 51. Double-acting screw; 52. Transmission box; 53. Adjusting rod; 54. Movable block one; 55. Limit bolt; 56. Push block; 57. Reset assembly; 571. Limiting sleeve; 572. Movable block two; 573. Clamping block; 574. Rectangular block; 575. Spring one; 576. Fixing post; 577. Fixing plate; 578. Limiting slide post; 579. Spring two; 6. Bearing rings; 7. Drilling mechanism; 71. Multi-stage push rod II; 72. Motor box; 73. Dust collection sleeve; 74. Curved plate; 75. Fiber fibers. Detailed Implementation
[0018] 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.
[0019] Please see Figure 1-9 One embodiment of the present invention is: a turbocharger bearing hole machining apparatus, including a machining table 1, and further comprising: The bracket 2 is fixedly connected to the bottom of the processing table 1 to support the processing table 1; The moving mechanism 3 is located above the processing table 1 and is used to move the clamping mechanism 5 located on the moving mechanism 3 to clamp bearing rings 6 of different lengths. The rotating mechanism 4 is mounted on the moving mechanism 3 and is used to adjust the rotation of the clamping mechanism 5 to drive the bearing ring 6 to rotate. Among them, the mobile mechanism 3 includes: Two movable blocks 31 are slidably positioned on both sides above the processing table 1; Two rectangular holes are symmetrically opened on the processing table 1, one in front of the other, and a sliding column 32 is fixedly connected in each rectangular hole; Multiple sliders 33, in pairs, are slidably connected to the outer wall of the slide column 32 and located inside the rectangular hole and connected to the bottom of the moving block 31, for pushing the moving block 31 to move; Two connecting blocks 34 are respectively located below the two moving blocks 31 and connected to the bottom of the slider 33, for pushing the slider 33 to move; Two multi-stage push rods 35 are fixedly connected to both sides of the bracket 2, and are used to push the two connecting blocks 34 to move.
[0020] Rotating mechanism 4 includes: The arc-shaped rail 41 is fixedly connected to the top arc-shaped recess of the moving block 31; The rotating disk 42 has two annular rails 43 fixedly connected to its outer wall and rotates on the arc-shaped rail 41.
[0021] Clamping mechanism 5 includes: A bidirectional screw 51 is rotatably connected to a rotating disk 42, and a cavity is provided on one side of the rotating disk 42, with a transmission box 52 installed at the center of the cavity shaft; The adjusting rod 53 is rotatably connected to the rotating disk 42, and the middle part of the adjusting rod 53 and the middle part of the bidirectional screw 51 are both located in the transmission box 52, and the bidirectional screw 51 is driven to rotate through the transmission box 52. Two movable blocks 54 are respectively set on one side of the rotating disk 42, and the movable blocks 54 are threadedly connected to the outer walls of the two bidirectional screws 51 through adjusting blocks. Multiple limit bolts 55, two in a group, pass through two movable blocks 54 and slide in the sliding holes opened on the rotating disk 42; Push block 56 is connected to two movable blocks 54 respectively, and pushes two reset components 57 set on the inner side of the rotating disk 42 to hold the bearing ring 6.
[0022] Reset component 57 includes: The limiting sleeve 571 is fixedly connected to the rotating disk 42 and is located on the side near the axis. The second movable block 572 is slidably connected inside the limiting sleeve 571, and its top contacts the push block 56; Two fixed posts 576 are fixedly connected to a rectangular groove opened in the movable block 572, and a rectangular block 574 is slidably connected in the rectangular groove, and the rectangular block 574 slides on the two fixed posts 576. Multiple springs 575 are respectively sleeved on the outer wall of each fixed post 576 and located on both sides of the rectangular block 574 for resetting the rectangular block 574; Clamping block 573 is fixedly connected to the bottom of rectangular block 574 and is used to clamp bearing ring 6.
[0023] Reset component 57 also includes: The fixed plate 577 is fixedly connected to the limiting sleeve 571, and two limiting sliding pins 578 are fixedly connected to the limiting sleeve 571. The limiting slide column 578 slides on the sliding sleeve on the movable block 572; Two springs 579 are respectively sleeved on the outer wall of the two limiting slide pins 578, located between the sliding sleeve and the fixed plate 577, and are used to push the sliding sleeve to drive the movable block 572 to move upward.
[0024] The rotating mechanism 4 also includes: The inspection plate 46 is bolted to the side of the rotating disk 42 away from the bearing ring 6; Multiple mounting holes are respectively opened on the annular rail 43 located on one side of the inspection plate 46, and limit posts 45 are installed in the mounting holes; The stop lever 44 is fixedly connected to the top of the processing table 1 and abuts against the limit post 45 to limit the rotation angle of the rotating mechanism 6.
[0025] The machining table 1 is equipped with a drilling mechanism 7 for drilling holes in the bearing ring 6. The drilling mechanism 7 includes: Multi-stage push rod 71 is fixedly connected above the machining table 1; The motor housing 72 is fixedly connected to the output end of the multi-stage push rod 71, and a motor is installed inside the motor housing 72. The output end of the motor moves through the motor housing 72 and is equipped with a cutting tool. The distance between the cutting tool and the bearing ring 6 is adjusted by the multi-stage push rod 71.
[0026] The punching mechanism 7 also includes: Dust collection sleeve 73 is slidably sleeved on the outer wall of motor housing 72, and the top of dust collection sleeve 73 is fixedly connected to arc plate 74; Fiber hair 75 is disposed on the inner side of the arc of the arc plate 74. A return spring is provided at the bottom of the dust collection sleeve 73 to push the dust collection sleeve 73 upward and push the fiber hair 75 to adhere to the outer wall of the bearing ring 6.
[0027] Working principle: Based on the length of the bearing ring 6 to be processed, the multi-stage push rod 35 installed on both sides of the bracket 2 is activated to push the connecting block 34, causing the slider 33 to slide along the slide column 32, precisely driving the two moving blocks 31 to move towards or away from each other, adjusting to the clamping position suitable for the workpiece length. Subsequently, the operator rotates the adjusting rod 53, which drives the two bidirectional screws 51 to rotate synchronously through the gear set in the transmission box 52. The rotation of the bidirectional screws 51 causes the two movable blocks 54 connected to them to move towards each other along the sliding holes on the rotating disk 42. The movable blocks 54 push the push block 56 to move downward, and the push block 56 presses down on the movable block 572, causing it to overcome the elastic force of the spring 579 and slide downward along the limiting slide column 578. The movable block 572 drives the clamping block 573 at the bottom to move downward. The distance between the two clamping blocks 573 is shortened by pulling one of the clamping blocks 573 and moving it on the fixed post 576 via the rectangular block 574. This allows the bearing ring 6 to be placed directly into the two clamping blocks 573. By continuing to rotate the adjusting rod 573, the distance between the two clamping blocks 573 is shortened, and the outer wall of the bearing ring is engaged. The clamping block 573 is connected to the fixed post 576 via the rectangular block 574 and is provided with floating support by the spring 575. After the clamping block 573 is released, it will reset under the action of the spring 575, thereby clamping the bearing ring 6. After the initial clamping is completed, the rotary disk 42 is manually rotated to make it rotate smoothly along the arc rail 41 and the annular rail 43, thereby driving the clamped bearing ring 6 to rotate to the required processing angle. When the rotary disk 42 rotates, the limiting post 45 on it will contact the stop bar 44 fixed on the processing table 1. By installing the limiting post in different mounting holes, multiple rotation angle limiting points can be preset to achieve fast and accurate angle indexing and meet the processing requirements of drilling holes at different angles on the bearing ring. The motor in the drilling mechanism 7 is started, driving the tool to rotate at high speed. At the same time, the multi-stage push rod 71 precisely advances the entire motor housing 72, allowing the tool to smoothly drill into the wall of the bearing ring 6. In the initial stage of drilling feed, the return spring at the bottom of the dust collection sleeve 73 pushes it upward, causing the fiber hairs 75 at the front end of the arc plate 74 to tightly adhere to the outer wall of the bearing ring 6, forming a temporary sealed cavity. When drilling begins, most of the metal chips generated are confined within this cavity and cannot splash outwards. As the drilling depth increases, the motor housing 72 overcomes the force of the return spring, causing the dust collection sleeve 73 to move downwards relatively. However, the fiber hairs 75 always remain in contact with the workpiece surface, continuously playing the role of surrounding and blocking chips, effectively collecting most of the chips, maintaining a clean working environment, and avoiding the impact of chips on machining accuracy and tool life.
[0028] After processing, the multi-stage push rod 71 drives the drilling mechanism to retract and reverses the adjusting rod 53, causing the bidirectional screw 51 to drive the movable block 54 and push block 56 to retract. At this time, under the strong restoring force of the spring 579, the movable block 572 and clamping block 573 return to their original position, automatically releasing the workpiece. The operator can then safely and conveniently remove the processed bearing ring.
[0029] This invention provides a device for machining bearing holes in turbochargers. Many methods and approaches exist for implementing this technical solution; the above are merely preferred embodiments. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications should also be considered within the scope of protection of this invention. All components not explicitly stated in this embodiment can be implemented using existing technologies.
Claims
1. A turbocharger bearing hole machining apparatus, comprising a machining table (1), characterized in that, Also includes: The bracket (2) is fixedly connected to the bottom of the processing table (1) to support the processing table (1). The moving mechanism (3) is located above the processing table (1) and is used to move the clamping mechanism (5) located on the moving mechanism (3) to clamp bearing rings (6) of different lengths. The rotating mechanism (4) is set on the moving mechanism (3) and is used to adjust the rotation of the clamping mechanism (5) to drive the bearing ring (6) to rotate. Among them, the mobile mechanism (3) includes: Two movable blocks (31) are slidably positioned on both sides above the processing table (1); Two rectangular holes are symmetrically opened on the processing table (1), and each rectangular hole is fixedly connected to a sliding column (32). Multiple sliders (33) are connected in pairs to the outer wall of the slide column (32) and located in the rectangular hole to the bottom of the moving block (31) for pushing the moving block (31) to move; Two connecting blocks (34) are respectively located below the two moving blocks (31) and connected to the bottom of the slider (33) to push the slider (33) to move; Two multi-stage push rods (35) are fixedly connected to both sides of the bracket (2) to push the two connecting blocks (34) to move.
2. The turbocharger bearing hole machining device according to claim 1, characterized in that: The rotating mechanism (4) includes: The arc-shaped rail (41) is fixedly connected to the top arc-shaped recess of the moving block (31); The rotating disk (42) has two annular rails (43) fixedly connected to its outer wall and rotates on the arc-shaped rail (41).
3. The turbocharger bearing hole machining device according to claim 2, characterized in that: The clamping mechanism (5) includes: A bidirectional screw (51) is rotatably connected to a rotating disk (42), and a cavity is provided on one side of the rotating disk (42), and a transmission box (52) is installed at the center of the cavity shaft. The adjusting rod (53) is rotatably connected to the rotating disk (42), and the middle part of the adjusting rod (53) and the middle part of the bidirectional screw (51) are both located in the transmission box (52), and the bidirectional screw (51) is driven to rotate through the transmission box (52); Two movable blocks (54) are respectively set on one side of the rotating disk (42), and the movable blocks (54) are threadedly connected to the outer walls of the two bidirectional screws (51) through adjusting blocks; Multiple limit bolts (55) are arranged in pairs, each passing through one of the two movable blocks (54) and sliding within the sliding holes opened on the rotating disk (42); Push block (56) is connected to two movable blocks (54) respectively, and pushes two reset components (57) set on the inner side of the rotating disk (42) to clamp the bearing ring (6).
4. The turbocharger bearing hole machining device according to claim 3, characterized in that: The reset component (57) includes: The limiting sleeve (571) is fixedly connected to the rotating disk (42) and located on the side close to the axis; The second movable block (572) is slidably connected inside the limiting sleeve (571), and its top contacts the push block (56); Two fixed posts (576) are fixedly connected in a rectangular groove opened in the movable block two (572), and a rectangular block (574) is slidably connected in the rectangular groove, and the rectangular block (574) slides on the two fixed posts (576); Multiple springs (575) are respectively sleeved on the outer wall of each fixed post (576) and located on both sides of the rectangular block (574) for resetting the rectangular block (574). The clamping block (573) is fixedly connected to the bottom of the rectangular block (574) and is used to clamp the bearing ring (6).
5. The turbocharger bearing hole machining device according to claim 4, characterized in that: The reset component (57) further includes: The fixed plate (577) is fixedly connected to the limiting sleeve (571), and two limiting slide pins (578) are fixedly connected to the limiting sleeve (571). The limiting slide column (578) is slidably connected to the sliding sleeve on the movable block two (572); Two springs (579) are respectively fitted on the outer walls of the two limiting slides (578) and located between the slide sleeve and the fixed plate (577) to push the slide sleeve to drive the movable block (572) to move upward.
6. The turbocharger bearing hole machining apparatus according to claim 5, characterized in that: The rotating mechanism (4) further includes: The inspection plate (46) is bolted to the side of the rotating disk (42) away from the bearing ring (6); Multiple mounting holes are respectively opened on the annular rail (43) located on one side of the inspection plate (46), and limit posts (45) are installed in the mounting holes. The stop bar (44) is fixedly connected to the top of the processing table (1) and abuts against the limit post (45) to limit the rotation angle of the rotating mechanism (6).
7. The turbocharger bearing hole machining apparatus according to claim 6, characterized in that: The processing table (1) is equipped with a drilling mechanism (7) for drilling holes in the bearing ring (6). The drilling mechanism (7) includes: Multistage push rod 2 (71) is fixedly connected above the processing table (1); The motor housing (72) is fixedly connected to the output end of the multi-stage push rod two (71), and a motor is installed inside the motor housing (72). The output end of the motor moves through the motor housing (72) and is equipped with a cutting tool. The distance between the cutting tool and the bearing ring (6) is adjusted by the multi-stage push rod two (71).
8. The turbocharger bearing hole machining apparatus according to claim 7, characterized in that: The punching mechanism (7) also includes: A dust collection sleeve (73) is slidably fitted on the outer wall of the motor housing (72), and the top of the dust collection sleeve (73) is fixedly connected to an arc-shaped plate (74). Fiber hair (75) is provided on the inner side of the arc of the arc plate (74). The bottom of the dust collection sleeve (73) is provided with a return spring, which is used to push the dust collection sleeve (73) upward and push the fiber hair (75) to adhere to the outer wall of the bearing ring (6).