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CN-121972990-A - Turbocharger bearing hole machining device

CN121972990ACN 121972990 ACN121972990 ACN 121972990ACN-121972990-A

Abstract

The invention relates to the technical field of bearing hole machining, and discloses a turbocharger bearing hole machining device, which comprises a machining table, a bracket, a moving mechanism, a rotating mechanism and a regulating mechanism, wherein the bracket is fixedly connected to the bottom of the machining table and used for supporting the machining table, the moving mechanism is arranged above the machining table and used for moving a clamping mechanism arranged on the moving mechanism to clamp bearing rings with different lengths, and the rotating mechanism is arranged on the moving mechanism and used for regulating the clamping mechanism to rotate so as to drive the bearing rings to rotate. The invention enables the clamp splice to have fine-tuning floating capability in the radial direction and the axial direction through the reset assembly, the structure can automatically compensate the manufacturing tolerance and the tiny out-of-roundness of the inner circle of the workpiece, ensure the uniform distribution of clamping force, and radically avoid the deformation and the surface crush injury of the workpiece caused by over-positioning or rigid clamping by adopting the rigid transmission and flexible contact clamping mode, and particularly can obviously improve the processing yield and the dimensional accuracy for the thin-wall bearing ring.

Inventors

  • ZHANG GUOJUN
  • BAI DONG

Assignees

  • 扬州亨达利动力有限公司

Dates

Publication Date
20260505
Application Date
20260330

Claims (8)

  1. 1. The device for machining the bearing hole of the turbocharger comprises a machining table (1), and is characterized by further comprising: The bracket (2) is fixedly connected to the bottom of the processing table (1) and is used for supporting the processing table (1); the moving mechanism (3) is arranged above the processing table (1) and is used for moving the clamping mechanism (5) arranged on the moving mechanism (3) to clamp the bearing rings (6) with different lengths; the rotating mechanism (4) is arranged on the moving mechanism (3) and is used for adjusting the clamping mechanism (5) to rotate so as to drive the bearing ring (6) to rotate; wherein the moving mechanism (3) comprises: Two moving blocks (31) which are arranged on two sides above the processing table (1) in a sliding manner; The two rectangular holes are respectively and longitudinally symmetrically arranged on the processing table (1), and each rectangular hole is fixedly connected with a sliding column (32); The sliding blocks (33) are respectively connected to the outer wall of the sliding column (32) in a sliding way, are positioned in the rectangular holes and are connected with the bottoms of the moving blocks (31) and are used for pushing the moving blocks (31) to move; the two connecting blocks (34) are respectively arranged below the two moving blocks (31) and connected with the bottom of the sliding block (33) for pushing the sliding block (33) to move; The two multi-stage push rods I (35) are respectively and fixedly connected to two sides of the support (2) and used for pushing the two connecting blocks (34) to move.
  2. 2. The turbocharger bearing hole machining device according to claim 1, wherein the rotating mechanism (4) includes: The arc-shaped rail (41) is fixedly connected to the arc-shaped concave part at the top of the moving block (31); The rotating disc (42) is fixedly connected with two annular rails (43) on the outer wall and is positioned on the arc-shaped rail (41) to rotate.
  3. 3. A turbocharger bearing hole machining device according to claim 2, wherein the clamping mechanism (5) comprises: the bidirectional screw rod (51) is rotationally connected to the rotary disc (42), a cavity is formed in one side of the rotary disc (42), and a transmission case (52) is arranged at the axis of the cavity; The adjusting rod (53) is rotationally connected to the rotary disc (42), and the middle part of the adjusting rod (53) and the middle part of the bidirectional screw rod (51) are both arranged in the transmission case (52) and drive the bidirectional screw rod (51) to rotate through the transmission case (52); The first movable blocks (54) are respectively arranged on one side of the rotary disc (42), and the first movable blocks (54) are connected on two sides of the outer walls of the two bidirectional screws (51) through adjusting blocks in a threaded manner; a plurality of limit bolts (55), two groups of limit bolts penetrate through the two movable blocks (54) and slide in slide holes formed in the rotary disc (42); the pushing blocks (56) are respectively connected to the first movable blocks (54) and push the second reset components (57) arranged on the inner side of the rotating disc (42) to clamp the bearing ring (6).
  4. 4. A turbocharger bearing hole machining device according to claim 3, wherein the reset assembly (57) comprises: The limit sleeve (571) is fixedly connected to the rotary disc (42) and is positioned at one side close to the axle center; The second movable block (572) is connected inside the limit sleeve (571) in a sliding way, and the top of the second movable block is contacted with the push block (56); the two fixed columns (576) are fixedly connected in a rectangular groove formed in the movable block II (572), a rectangular block (574) is connected in the rectangular groove in a sliding mode, and the rectangular block (574) is located on the two fixed columns (576) to slide; The first springs (575) are respectively sleeved on the outer wall of each fixed column (576) and positioned at two 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 for clamping the bearing ring (6).
  5. 5. The turbocharger bearing hole machining device according to claim 4, wherein the reset assembly (57) further comprises: The fixed plate (577) is fixedly connected to the limiting sleeve (571), and the limiting sleeve (571) is fixedly connected with two limiting slide posts (578); The limit sliding column (578) is connected to the sliding sleeve on the second movable block (572) in a sliding manner; The two second springs (579) are respectively sleeved on the outer walls of the two limiting slide posts (578) and are positioned between the sliding sleeve and the fixed plate (577) and used for pushing the sliding sleeve to drive the second movable block (572) to move upwards.
  6. 6. The turbocharger bearing hole machining device according to claim 5, wherein the rotating mechanism (4) further comprises: The access panel (46) is connected to one side of the rotating disc (42) away from the bearing ring (6) through bolts; the mounting holes are respectively formed in the annular rail (43) positioned on one side of the access panel (46), and limit posts (45) are arranged in the mounting holes; The baffle rod (44) is fixedly connected to the top of the processing table (1) and is in interference with the limiting column (45) for limiting the rotation angle of the rotating mechanism (6).
  7. 7. The turbocharger bearing hole machining device according to claim 6, wherein a punching mechanism (7) is provided on the machining table (1) for punching the bearing ring (6), the punching mechanism (7) comprising: the multi-stage push rod II (71) is fixedly connected above the processing table (1); the motor box (72) is fixedly connected to the output end of the multi-stage push rod II (71), a motor is arranged in the motor box (72), the motor output end movably penetrates through the motor box (72) and is provided with a cutter, and the distance between the cutter and the bearing ring (6) is adjusted through the multi-stage push rod II (71).
  8. 8. The device for machining a bearing hole of a turbocharger according to claim 7, wherein said punching mechanism (7) further comprises: the dust accumulation sleeve (73) is sleeved on the outer wall of the motor box (72) in a sliding manner, and the top of the dust accumulation sleeve (73) is fixedly connected with the arc-shaped plate (74); the fiber wool (75) is arranged on the inner side of the arc-shaped plate (74), and a return spring is arranged at the bottom of the dust accumulation sleeve (73) and used for pushing the dust accumulation sleeve (73) upwards to move upwards and pushing the fiber wool (75) to be attached to the outer wall of the bearing ring (6).

Description

Turbocharger bearing hole machining device Technical Field The invention relates to the technical field of bearing hole machining, in particular to a turbocharger bearing hole machining device. Background The turbocharger is used as a core component for improving the efficiency of the engine, and the manufacturing precision of the bearing body directly determines the performance and reliability of the whole engine. The bearing holes on the bearing body are used for installing and supporting the rotor shaft, and the position accuracy, the aperture size and the hole wall quality are extremely strict. At present, the processing of bearing holes of a bearing body is generally carried out by adopting a mode of matching a general numerical control machine tool with a special fixture, but a series of technical problems still face in actual production. The bearing holes are generally uniformly distributed circumferentially or at a specific angle, and multiple indexing processes are required. The prior art often needs to repeatedly disassemble and assemble workpieces or manually adjust the angles of the clamps, so that the production efficiency is low, new accumulated errors can be introduced in each repositioning, the precision of included angles among holes is difficult to guarantee, and the consistency is poor. The problem of high equipment cost can be solved by using an expensive multi-axis numerical control machine tool, so a turbocharger bearing hole machining device is proposed to solve the problem. Disclosure of Invention The invention aims to solve the technical problem of providing a turbocharger bearing hole machining device aiming at the defects in the prior art. In order to solve the technical problems, the technical scheme adopted by the invention is that the device for machining the bearing hole of the turbocharger comprises a machining table and further comprises: the bracket is fixedly connected to the bottom of the processing table and used for supporting the processing table; The moving mechanism is arranged above the processing table and used for moving the clamping mechanism arranged on the moving mechanism to clamp the bearing rings with different lengths; the rotating mechanism is arranged on the moving mechanism and used for adjusting the clamping mechanism to rotate so as to drive the bearing ring to rotate; wherein, the mobile mechanism includes: the two moving blocks are arranged on two sides above the processing table in a sliding manner; the two rectangular holes are respectively and longitudinally symmetrically arranged on the processing table, and each rectangular hole is fixedly connected with a sliding column; The sliding blocks are connected to the outer wall of the sliding column in a sliding way, are positioned in the rectangular holes and are connected with the bottoms of the moving blocks, and are used for pushing the moving blocks to move; The two connecting blocks are respectively arranged below the two moving blocks, are connected with the bottoms of the sliding blocks and are used for pushing the sliding blocks to move; The first multistage push rods are respectively and fixedly connected to two sides of the support and used for pushing the two connecting blocks to move. Preferably, the rotation mechanism includes: the arc-shaped rail is fixedly connected to the arc-shaped concave part at the top of the moving block; the outer wall of the rotating disk is fixedly connected with two annular rails and positioned on the arc-shaped rails to rotate. Preferably, the clamping mechanism comprises: the bidirectional screw is rotationally connected to the rotary disk, one side of the rotary disk is provided with a cavity, and a transmission box is arranged at the axis of the cavity; The adjusting rod is rotationally connected to the rotating disc, and the middle part of the adjusting rod and the middle part of the bidirectional screw are both arranged in the transmission case and drive the bidirectional screw to rotate through the transmission case; The first movable blocks are respectively arranged on one side of the rotary disk, and are connected to two sides of the outer walls of the two bidirectional screws through adjusting blocks in a threaded manner; the two groups of limit bolts penetrate through the two movable blocks and slide in sliding holes formed in the rotating disc; the pushing blocks are respectively connected to the first movable blocks, push the second reset components arranged on the inner sides of the rotating disks and are used for clamping the bearing rings. Preferably, the reset assembly includes: the limiting sleeve is fixedly connected to the rotating disc and is positioned at one side close to the axle center; The second movable block is connected in a sliding manner in the limiting sleeve, and the top of the second movable block is contacted with the pushing block; The two fixed columns are fixedly connected in a rectangular groove formed in the second mova