A turbocharger turbine shaft machining apparatus

Abstract

This utility model belongs to the field of turbine shaft machining, specifically relating to a turbine shaft machining device for turbochargers. It includes a chuck with three jaws movably connected to its top, arranged equidistantly around the chuck. An inner-curvature replaceable jaw block is fitted onto the side of the jaws closest to each other. A mounting block is located inside the inner-curvature replaceable jaw block, with its bottom side, away from the inner-curvature replaceable jaw block, fixedly connected to the top of the inner-curvature replaceable jaw block. This utility model, by adding jaws and other structures to the chuck and by setting three jaws equidistantly arranged around the chuck, can adapt to the machining requirements of turbine shafts of different specifications, improving the versatility of the device. The multi-jaw cooperative fixing structure design, achieved by adding inner-curvature replaceable jaw blocks to the jaws, enhances the clamping stability of the turbine shaft, ensuring that the turbine shaft is not easily displaced during machining and improving machining accuracy.

Description

Technical Field

[0001] This utility model relates to the field of turbine shaft machining technology, specifically a turbine shaft machining device for turbochargers. Background Technology

[0002] During the machining of turbocharger turbine shafts, the turbine shaft needs to be stably clamped by chucks and jaws to ensure machining accuracy. Currently, most turbine shaft machining devices on the market have a fixed clamping structure on the jaws, which cannot flexibly adjust the clamping curvature according to turbine shafts of different diameters. When machining turbine shafts of different specifications, the fixed clamping structure is difficult to fully fit the turbine shaft surface, which can easily lead to machining deviations due to unstable clamping and affect product quality.

[0003] Meanwhile, some devices with replaceable clamping components have insufficient stability in their fixing mechanisms. Processing vibrations can easily cause the clamping components to loosen, and the replacement operation is cumbersome, requiring additional tools, which is time-consuming and labor-intensive, reducing processing efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a turbocharger turbine shaft machining device, which solves the problems of existing turbine shaft machining devices on the market. The clamping structure on the jaws is mostly a fixed design, which cannot flexibly adjust the clamping curvature according to turbine shafts of different diameters. When machining turbine shafts of different specifications, the fixed clamping structure is difficult to fully fit the turbine shaft surface, which can easily lead to machining deviations due to unstable clamping and affect product quality. Some devices with replaceable clamping parts have insufficient stability of the fixing mechanism, and the clamping parts are easy to loosen due to machining vibration. Moreover, the replacement operation is cumbersome, requires additional tools, is time-consuming and labor-intensive, and reduces machining efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a turbocharger turbine shaft machining device, including a chuck, with three jaws movably connected to the top of the chuck, the three jaws being evenly distributed around each other, an inner arc-shaped replaceable jaw block fitted on the side of the jaws that are close to each other, an installation block being provided inside the inner arc-shaped replaceable jaw block, the bottom side of the installation block away from the inner arc-shaped replaceable jaw block being fixedly connected to the top of the inner arc-shaped replaceable jaw block, mounting insertion slots being provided on both sides of the inner wall of the inner arc-shaped replaceable jaw block, and a fixing mechanism being provided inside the installation block.

[0006] Preferably, the fixing mechanism includes a fixing engagement block, which is movably connected to both sides inside the mounting block. The outer side of the fixing engagement block extends to the outer side of the mounting block and extends into the interior of the mounting insertion slot.

[0007] Preferably, a push-tightening block is provided on the inner side of the fixed mating block, and a control lever is fixedly connected to the surface of the push-tightening block, with the outer side of the control lever extending through to the outer side of the mounting block.

[0008] Preferably, a locking spring is fixedly connected to the surface of the push block, and the other side of the locking spring is fixedly connected to the inner wall of the mounting block.

[0009] Preferably, a stabilizing sleeve is fitted onto the surface of the control rod, and the surface of the stabilizing sleeve is fixedly connected to the inner wall of the mounting block.

[0010] Preferably, a pull ring is fixedly connected to the outer side of the control rod, and the surface of the pull ring is in contact with the surface of the mounting block.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, by adding jaws and other structures to the chuck, and by setting three jaws that are equally spaced around it, can adapt to the machining requirements of turbine shafts of different specifications, thus improving the versatility of the device.

[0012] 2. This utility model enhances the clamping stability of the turbine shaft by adding an inner arc replacement claw block and other structures to the chuck jaws. The multi-jaw cooperative fixing structure design ensures that the turbine shaft is not easily deviated during the machining process and improves the machining accuracy. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a three-dimensional cross-sectional view of the inner curvature replacement claw block of this utility model; Figure 3 This is a three-dimensional cross-sectional view of the mounting block of this utility model; Figure 4 This is a perspective view of the chuck of this utility model.

[0014] In the diagram: 1. Chuck; 2. Claw; 3. Replaceable inner arc claw block; 4. Mounting block; 5. Mounting insertion slot; 61. Fixed mating block; 62. Pushing block; 63. Control lever; 64. Locking spring; 7. Stabilizing sleeve; 8. Pull ring. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-4 A turbocharger turbine shaft machining device includes a chuck 1, with three jaws 2 movably connected to the top of the chuck 1. The three jaws 2 are evenly distributed around each other. An inner arc-shaped replaceable jaw block 3 is fitted on the side of the jaws 2 that is close to each other. An installation block 4 is provided inside the inner arc-shaped replaceable jaw block 3. The bottom side of the installation block 4 away from the inner arc-shaped replaceable jaw block 3 is fixedly connected to the top of the inner arc-shaped replaceable jaw block 3. Both sides of the inner wall of the inner arc-shaped replaceable jaw block 3 are provided with mounting insertion slots 5. A fixing mechanism is provided inside the installation block 4.

[0017] Please see Figure 1-4 The fixing mechanism includes a fixing engagement block 61, which is movably connected to both sides inside the mounting block 4. The outer side of the fixing engagement block 61 extends to the outer side of the mounting block 4 and extends to the interior of the mounting insertion slot 5.

[0018] Furthermore, by setting up the fixed engagement block 61, the mounting block 4 and the inner arc replacement claw block 3 can be quickly engaged and fixed, making the installation of the inner arc replacement claw block 3 on the claw 2 more stable, avoiding the inner arc replacement claw block 3 from loosening due to vibration during processing, ensuring the reliability of the clamping effect, and also providing a convenient structural basis for the subsequent replacement or maintenance of the inner arc replacement claw block 3.

[0019] Please see Figure 1-4 A push block 62 is provided on the inner side of the fixed mating block 61, and a control rod 63 is fixedly connected to the surface of the push block 62. The outer side of the control rod 63 extends through to the outer side of the mounting block 4.

[0020] Furthermore, the push-tightening block 62 and the control lever 63 provide a convenient way to control the movement of the fixed-fitting block 61. By pulling the control lever 63, the push-tightening block 62 can be driven to act on the fixed-fitting block 61, thereby separating the fixed-fitting block 61 from the mounting insertion slot 5. This facilitates quick disassembly or adjustment of the inner curvature replacement claw block 3, simplifies the operation process, and improves the flexibility and efficiency of the device.

[0021] Please see Figure 1-4 A locking spring 64 is fixedly connected to the surface of the push block 62, and the other side of the locking spring 64 is fixedly connected to the inner wall of the mounting block 4.

[0022] Furthermore, by setting the locking spring 64, the fixed mating block 61 is always kept in a tight engagement with the mounting insertion slot 5, preventing the fixed mating block 61 from accidentally disengaging from the mounting insertion slot 5 due to external force or vibration during processing. This further enhances the stability of the connection between the mounting block 4 and the inner arc replacement claw block 3, ensuring the reliability of the device for long-term use.

[0023] Please see Figure 1-4 A stabilizing sleeve 7 is fitted onto the surface of the control rod 63, and the surface of the stabilizing sleeve 7 is fixedly connected to the inner wall of the mounting block 4.

[0024] Furthermore, by setting the stabilizing sleeve 7, the shaking of the control lever 63 during the pulling or resetting process can be reduced, ensuring the stability and accuracy of the movement of the control lever 63 driving the push block 62 and the fixed mating block 61, avoiding poor mating between the fixed mating block 61 and the mounting insertion slot 5 due to the offset of the control lever 63, and improving the working stability of the fixing mechanism.

[0025] Please see Figure 1-4 A pull ring 8 is fixedly connected to the outside of the control lever 63, and the surface of the pull ring 8 is in contact with the surface of the mounting block 4.

[0026] Furthermore, the pull ring 8 allows operators to quickly and effortlessly operate the control lever 63, especially in processing environments where hands may be contaminated with oil or gloves may be worn. This effectively prevents slippage, improves the convenience and efficiency of operation, and optimizes the user experience.

[0027] The specific implementation process of this utility model is as follows: When in use, the inner arc replaceable claw block 3 on the surface of the claw 2 can be replaced. When encountering turbine shafts of different diameters, the inner arc replaceable claw block 3 with the corresponding arc can be replaced so that the clamping arm of the inner arc replaceable claw block 3 is completely in contact with the surface of the turbine shaft. When replacing the inner curvature replacement claw block 3 on the surface of claw 2, pull the pull ring 8. The pull ring 8 drives the control pull rod 63 to move. The control pull rod 63 drives the push block 62 to move. The push block 62 separates from the surface of the fixed mating block 61. The push block 62 compresses the locking spring 64. After the fixed mating block 61 loses its clamping force, it rotates inward. The fixed mating block 61 separates from the mounting insertion slot 5. The inner curvature replacement claw block 3 and the claw 2 are no longer fixed, and other models of inner curvature replacement claw blocks 3 can be replaced.

[0028] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A turbocharger turbine shaft machining apparatus, comprising a chuck (1), characterized in that: The top of the chuck (1) is movably connected to a chuck claw (2). There are three chuck claws (2), and the three chuck claws (2) are distributed in a equidistant ring. An inner arc replacement claw block (3) is fitted on the side of the chuck claws (2) that is close to each other. An installation block (4) is provided inside the inner arc replacement claw block (3). The bottom side of the installation block (4) away from the inner arc replacement claw block (3) is fixedly connected to the top of the inner arc replacement claw block (3). Both sides of the inner wall of the inner arc replacement claw block (3) are provided with installation insertion slots (5). A fixing mechanism is provided inside the installation block (4).

2. The turbocharger turbine shaft machining apparatus according to claim 1, characterized in that: The fixing mechanism includes a fixing engagement block (61), which is movably connected to both sides inside the mounting block (4). The outer side of the fixing engagement block (61) extends to the outer side of the mounting block (4) and the outer side of the fixing engagement block (61) extends to the interior of the mounting insertion slot (5).

3. The turbocharger turbine shaft machining apparatus according to claim 2, characterized in that: A push block (62) is provided on the inner side of the fixed mating block (61), and a control rod (63) is fixedly connected to the surface of the push block (62). The outer side of the control rod (63) extends through to the outer side of the mounting block (4).

4. The turbocharger turbine shaft machining apparatus according to claim 3, characterized in that: A locking spring (64) is fixedly connected to the surface of the push block (62), and the other side of the locking spring (64) is fixedly connected to the inner wall of the mounting block (4).

5. The turbocharger turbine shaft machining apparatus according to claim 3, characterized in that: The surface of the control lever (63) is fitted with a stabilizing sleeve (7), and the surface of the stabilizing sleeve (7) is fixedly connected to the inner wall of the mounting block (4).

6. The turbocharger turbine shaft machining apparatus according to claim 3, characterized in that: A pull ring (8) is fixedly connected to the outside of the control lever (63), and the surface of the pull ring (8) is in contact with the surface of the mounting block (4).

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