A supercharger turbine rotor shaft machining positioning tool

By designing a combination of positioning fixtures, machining table, fixing groove, square rod, square tube and fixing components, the problem of low installation efficiency of positioning fixtures for turbocharger turbine rotor shaft machining in the prior art is solved, achieving efficient and stable fixing effect, and improving installation efficiency and safety.

CN224407440UActive Publication Date: 2026-06-26FENGCHENG TIANSHENG PRECISION MACHINERY MANUFACTURING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FENGCHENG TIANSHENG PRECISION MACHINERY MANUFACTURING CO LTD
Filing Date
2025-08-08
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The existing turbocharger turbine rotor shaft machining and positioning fixtures have low installation efficiency, require specialized tools and personnel, and cannot meet the needs for rapid installation and fixation, thus affecting the progress of engineering projects and increasing costs.

Method used

The design incorporates a positioning fixture, a processing table, a fixing groove, a square rod, a square tube, and a fixing component. Through the combination of a rotating disc, a tension spring, a limiting plate, and a locking rod, the mounting ears are securely fixed, improving installation efficiency and stability.

Benefits of technology

It achieves efficient fixation of positioning fixtures, improves installation efficiency and safety, reduces labor and time costs, and meets the high-efficiency and low-cost requirements of modern industrial production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the turbocharger turbine rotor shaft processing field, concretely relates to a turbocharger turbine rotor shaft processing positioning tool, including positioning tool, the bottom of positioning tool has the processing platform, the front side and rear side of processing platform top all are established with fixed groove, the bottom of fixed groove inner wall is fixedly connected with square bar, through placing positioning tool to the top of workbench, after user draws handle, makes handle to move up and drives limit board to move up, limit board moves up and drives square tube to move up, square tube drives tension spring to move up, makes square tube to move up and separate square bar, after rotating square tube and adjusting position, then loosens square tube, tension spring pulls square tube and moves down, makes limit board can drive the clamping block to be clamped in the inside of the clamping groove, can fix the mounting lug, can guarantee the stability of positioning tool, thereby reaches the effect of efficient fixation.
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Description

Technical Field

[0001] This utility model relates to the field of turbocharger turbine rotor shaft machining technology, specifically a positioning fixture for turbocharger turbine rotor shaft machining. Background Technology

[0002] The turbocharger turbine rotor shaft is a key component in a turbocharger that connects the turbine impeller and the compressor impeller, and it is widely used in many fields such as automobiles, aerospace, and energy.

[0003] In current positioning fixture installation processes, bolts are commonly used for fixing. While bolt fixing offers a degree of stability, it requires specialized tools and skilled personnel for precise installation. The bolt fixing process involves multiple steps, such as bolt selection, tool usage, and determining the installation location, all of which consume time and effort. Therefore, bolt fixing for positioning fixture installation is relatively inefficient and cannot meet the demands for rapid installation and fixation. This inefficient installation method negatively impacts the overall project schedule, reduces installation efficiency, and increases labor and time costs. To improve the efficiency of positioning fixture installation, it is necessary to seek more efficient and convenient installation methods to meet the demands of modern industrial production for high efficiency and low cost.

[0004] Therefore, it is necessary to provide a machining and positioning fixture for the turbocharger turbine rotor shaft to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a positioning fixture for machining turbocharger turbine rotor shaft, which solves the problem that current positioning fixtures are fixed with bolts. Bolt fixing requires tools and professional personnel for precise installation, which is slow and cannot be quickly installed and fixed, thus reducing installation efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for machining a turbocharger turbine rotor shaft, comprising a positioning fixture, a machining table at the bottom of the positioning fixture, fixing grooves on the front and rear sides of the top of the machining table, a square rod fixedly connected to the bottom of the inner wall of the fixing groove, a square tube sleeved on the outer side of the square rod, a fixing component disposed inside the square tube, and mounting ears fixedly connected to the surface of the positioning fixture;

[0007] The fixing component is used to fix the mounting ear in place.

[0008] Preferably, the fixing component includes two rotating disks, which are rotatably connected to the top of the square rod and the top of the inner wall of the square tube, respectively. A tension spring is vertically fixed to the inner side of the rotating disk. A limiting plate is fixedly connected to the top of the square tube. A locking rod is fixedly connected to the bottom of the limiting plate. A slot for inserting the locking rod is provided on the top of the mounting ear.

[0009] Preferably, a positioning rod is vertically fixedly connected to the inner side of the rotating disk, and there are two positioning rods, which are located inside the spring.

[0010] Preferably, the top of the limiting plate is fixedly connected with a handle, and the number of handles is several.

[0011] Preferably, the number of square tubes is four, and the square tubes are evenly distributed in a rectangular shape.

[0012] Preferably, the number of tension springs is four, and all tension springs are located inside the square tube.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention places the positioning fixture on the top of the workbench. The user then pulls the handle, causing the handle to move upward, which in turn moves the limiting plate upward. The upward movement of the limiting plate moves the square tube upward, which in turn moves the tension spring upward. When the square tube moves upward and disengages from the square rod, the user then rotates the square tube to adjust its position. After releasing the square tube, the tension spring pulls the square tube downward, allowing the limiting plate to engage the locking block inside the slot. This secures the mounting ear and ensures the stability of the positioning fixture, thus achieving a highly efficient fixing effect. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 This is a schematic diagram of the processing table structure of this utility model;

[0017] Figure 3 This is an exploded view of the processing table of this utility model.

[0018] Figure 4 This is a cross-sectional schematic diagram of the square tube structure of this utility model.

[0019] In the diagram: 1. Positioning fixture; 2. Machining table; 3. Fixing groove; 4. Square rod; 5. Square tube; 6. Fixing component; 61. Rotating disc; 62. Tension spring; 63. Limiting plate; 64. Clamping rod; 65. Clamping groove; 7. Mounting ear; 8. Positioning rod; 9. Handle. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 A positioning fixture for machining a turbocharger turbine rotor shaft includes a positioning fixture 1, a machining table 2 at the bottom of the positioning fixture 1, a fixing groove 3 on the front and rear sides of the top of the machining table 2, a square rod 4 fixedly connected to the bottom of the inner wall of the fixing groove 3, a square tube 5 sleeved on the outer side of the square rod 4, a fixing component 6 inside the square tube 5, and a mounting ear 7 fixedly connected to the surface of the positioning fixture 1.

[0022] The fixing component 6 is used to fix the mounting ear 7 in place.

[0023] Please see Figure 1-3 The fixing component 6 includes two rotating disks 61. The two rotating disks 61 are rotatably connected to the top of the square rod 4 and the top of the inner wall of the square tube 5, respectively. A tension spring 62 is vertically fixed to the inner side of the rotating disk 61. A limiting plate 63 is fixedly connected to the top of the square tube 5. A locking rod 64 is fixedly connected to the bottom of the limiting plate 63. A slot 65 is opened on the top of the mounting ear 7 to be inserted into the locking rod 64.

[0024] Furthermore, by setting the fixing component 6, we can securely fix the mounting ear 7. This measure effectively ensures the overall stability of the positioning fixture 1, ensuring that the positioning fixture 1 remains stable during the workpiece clamping process, thereby achieving reliable fixation of the workpiece. This stability is crucial for ensuring machining accuracy and operational safety.

[0025] Please see Figure 4 A positioning rod 8 is vertically fixed to the inner side of the rotating disk 61. There are two positioning rods 8, and the positioning rods 8 are located inside the spring.

[0026] Furthermore, by setting the positioning rod 8, we can precisely limit the spring's movement. This design significantly improves the spring's stability and effectively avoids the spring from shaking during use, thus providing users with a more convenient and reliable operating experience.

[0027] Please see Figure 3 The top of the limiting plate 63 is fixedly connected with a handle 9, and there are several handles 9.

[0028] Furthermore, with the handle 9, the user can easily pull the top of the limit plate 63. This design allows the limit plate 63 to move smoothly upward, which in turn allows the lever 64 to move smoothly upward and disengage from the limit of the slot 65. This makes it convenient for the user to remove the positioning fixture 1 to replace it with a fixture of different specifications, thus improving the flexibility and convenience of operation.

[0029] Please see Figure 3 There are four square tubes 5, which are evenly divided into rectangular sections.

[0030] Furthermore, by setting the number of square tubes 5 to four, we can achieve uniform and stable fixation on the four mounting ears 7. This design ensures the stability of the mounting ears 7, effectively prevents the positioning fixture 1 from shaking during use, provides excellent stability, and greatly facilitates the user's operation.

[0031] Please see Figure 4 There are four tension springs 62, all of which are located inside the square tube 5.

[0032] Furthermore, by setting the number of tension springs 62 to four, we can continuously tighten the four square tubes 5. This design ensures the stability of the square tubes 5 and effectively avoids the problem of shaking during use, thus providing users with a more stable and reliable user experience.

[0033] The specific implementation process of this utility model is as follows: When it is necessary to fix the positioning fixture 1, the user first needs to place the positioning fixture 1 stably at the top of the workbench, ensuring that the positioning fixture 1 is in complete contact with the workbench surface and remains horizontal. Next, the user holds the handle 9 and pulls the handle 9 upwards, causing the handle 9 to move upwards along the preset track. As the handle 9 moves upwards, the limiting plate 63 connected to it also moves upwards. The upward movement of the limiting plate 63 further drives the square tube 5 to move upwards. At the same time, the downward part of the square tube 5 will drive the tension spring 62 to move upwards accordingly. When the square tube 5 moves upwards to a certain extent... When completely freed from the constraint of the square rod 4, the user can rotate the square tube 5 and adjust its position according to actual needs to ensure the accuracy and stability of the positioning fixture 1 after fixing. After adjustment, the user releases the square tube 5, at which point the tension spring 62 will automatically rebound and pull the square tube 5 downward. As the square tube 5 moves downward, the limiting plate 63 will also descend, causing the locking block to accurately engage with the inside of the slot 65. In this way, the tight engagement between the locking block and the slot 65 can effectively fix the mounting ear 7, thereby ensuring the overall stability of the positioning fixture 1. Through this series of precise and orderly operations, the efficient fixing of the positioning fixture 1 is finally achieved, improving work efficiency and safety.

[0034] 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 positioning fixture for machining the turbine rotor shaft of a turbocharger, characterized in that, The positioning fixture (1) includes a processing table (2) at the bottom of the positioning fixture (1). The front and rear sides of the top of the processing table (2) are provided with fixing grooves (3). A square rod (4) is fixedly connected to the bottom of the inner wall of the fixing groove (3). A square tube (5) is sleeved on the outside of the square rod (4). A fixing component (6) is provided inside the square tube (5). A mounting ear (7) is fixedly connected to the surface of the positioning fixture (1). The fixing component (6) is used to fix the mounting ear (7) in place.

2. The turbocharger turbine rotor shaft machining and positioning fixture according to claim 1, characterized in that: The fixing component (6) includes a rotating disk (61), and there are two rotating disks (61). The two rotating disks (61) are respectively rotatably connected to the top of the square rod (4) and the top of the inner wall of the square tube (5). A tension spring (62) is vertically fixed to the inner side of the rotating disk (61). A limiting plate (63) is fixedly connected to the top of the square tube (5). A locking rod (64) is fixedly connected to the bottom of the limiting plate (63). A slot (65) for inserting into the locking rod (64) is opened on the top of the mounting ear (7).

3. The turbocharger turbine rotor shaft machining and positioning fixture according to claim 2, characterized in that: The inner side of the rotating disk (61) is vertically fixed with a positioning rod (8). There are two positioning rods (8), and the positioning rods (8) are located inside the spring.

4. The turbocharger turbine rotor shaft machining and positioning fixture according to claim 2, characterized in that: The top of the limiting plate (63) is fixedly connected with a handle (9), and the number of handles (9) is several.

5. The turbocharger turbine rotor shaft machining and positioning fixture according to claim 1, characterized in that: The number of square tubes (5) is four, and the square tubes (5) are evenly divided into rectangular shapes.

6. The turbocharger turbine rotor shaft machining and positioning fixture according to claim 2, characterized in that: The number of tension springs (62) is four, and all tension springs (62) are located inside the square tube (5).