A special fixture for turning the wheel hub of an internal combustion engine

Abstract

The utility model discloses a kind of special fixture for turning of diesel locomotive wheel hub, it is related to diesel locomotive maintenance tool technical field, comprising: mobile seat and clamping piece, the mobile seat is used to be connected with lathe turntable and can be moved to the position of clamping wheel hub under the drive of the lathe turntable;The clamping piece is integrally fixedly connected with the top of the mobile seat, and the top of the clamping piece is provided with rim clamping station, and the rim clamping station is used to be clamped with the rim of wheel hub to limit the wheel hub, simple structure, convenient to use, effectively solve the problem of wheel hub falling off when wheel hub is turned, effectively improve work efficiency and guarantee production safety.

Description

Technical Field

[0001] This utility model relates to the technical field of internal combustion locomotive maintenance tools, and in particular to a special fixture for turning wheel hubs of internal combustion locomotives. Background Technology

[0002] In the current field of diesel locomotive maintenance, when wheel hubs need to be replaced, machining the inner ring and side of the wheel hub is a crucial preliminary step before installation onto the wheel disc. Subsequent machining operations on the wheel flange are then performed using this machined surface as a reference. Therefore, the machining accuracy of the inner ring and side of the wheel hub is paramount, directly affecting the precision and accuracy of the entire machining process and influencing the diesel locomotive's requirements for the wheel hub.

[0003] Currently, when turning the side and inner ring of wheel hubs, the standard straight-edge jigs that come with the lathe are mostly used. However, due to the curvature of the wheel hub tread, the actual contact area between the standard straight-edge jig and the wheel hub tread is extremely small. During the application of cutting forces during turning, the wheel hub is very prone to slippage. This not only seriously affects the normal progress of turning work, leading to reduced machining accuracy and efficiency, but also poses a significant threat to the personal safety of operators, presenting obvious safety hazards. Utility Model Content

[0004] The purpose of this utility model is to provide a special fixture for turning wheel hubs of internal combustion engines to solve the problems existing in the prior art. It has a simple structure, is easy to use, effectively solves the problem of wheel hub falling off during wheel hub turning, effectively improves work efficiency and ensures production safety.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides a special fixture for turning wheel hubs of internal combustion engine vehicles, including: a movable seat and a clamping member. The movable seat is used to connect with a lathe turntable and can move to a position to clamp the wheel hub under the drive of the lathe turntable. The clamping member is integrally fixedly connected to the top of the movable seat, and the top of the clamping member is provided with a rim engagement station. The rim engagement station is used to engage with the rim of the wheel hub to limit the wheel hub.

[0007] Preferably, the clamping member further includes a tread clamping station, which is located below the wheel flange snapping station, and the tread clamping station has the same inclination angle as the wheel flange tread of the hub so as to fit against the wheel flange tread of the hub when clamping the hub.

[0008] Preferably, the movable seat includes a snap-fit ​​groove and a threaded groove. The snap-fit ​​groove is used to be installed in the slide of the lathe turntable and can move along the slide. The threaded groove is disposed at the bottom of the snap-fit ​​groove and is threadedly connected to the screw of the lathe turntable to move along the slide under the drive of the screw and maintain the moved position.

[0009] Preferably, the threaded groove is a semi-circular groove with an open bottom.

[0010] Preferably, the clamping member and the movable seat are made of high-strength alloy steel.

[0011] Preferably, the inner wall of the wheel flange snap-fit ​​station is provided with a wear-resistant rubber pad, and the wear-resistant rubber pad is provided with anti-slip texture.

[0012] Preferably, the surface of the tread clamping station is provided with a number of evenly distributed elastic protrusions, the elastic protrusions are made of rubber material, and their hardness gradually decreases along the direction away from the surface of the tread clamping station.

[0013] The present invention achieves the following technical advantages over the prior art:

[0014] This invention provides a special fixture for turning wheel hubs of internal combustion engine vehicles. The movable seat allows the fixture to establish an effective connection with the lathe turntable and can be precisely moved to a predetermined position to firmly limit the wheel hub. By engaging the wheel hub rim at the rim engagement station, the wheel hub can be quickly positioned, ensuring that the machining accuracy is not affected by the wheel hub's own rotation or displacement during lathe processing, thus providing a stable foundation for subsequent wheel hub turning operations. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the structure of the special fixture for turning the wheel hub of an internal combustion engine provided by this utility model;

[0017] Figure 2 A schematic diagram of the internal combustion engine wheel hub turning fixture provided by this utility model from a bottom view.

[0018] Figure 3 A schematic diagram of the structure of the special fixture for turning internal combustion engine wheel hubs provided by this utility model during use;

[0019] In the diagram: 100, special fixture for turning wheel hubs of internal combustion engines; 1, moving seat; 2, clamping parts; 3, wheel flange clamping station; 4, tread clamping station; 5, clamping groove; 6, threaded groove; 7, wheel hub. 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] The purpose of this utility model is to provide a special fixture for turning wheel hubs of internal combustion engines to solve the problems existing in the prior art. It has a simple structure, is easy to use, effectively solves the problem of wheel hub falling off during wheel hub turning, effectively improves work efficiency and ensures production safety.

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] This utility model provides a special fixture 100 for turning wheel hubs of internal combustion engine vehicles, such as... Figures 1-3 As shown, the fixture includes a movable base 1 and a clamping member 2. The movable base 1 is connected to the lathe turntable and can move to the position to clamp the wheel hub 7 under the drive of the lathe turntable. The clamping member 2 is integrally fixedly connected to the top of the movable base 1, and the top of the clamping member 2 is provided with a rim engagement station 3. The rim engagement station 3 is used to engage with the rim of the wheel hub 7 to limit the wheel hub 7. The movable base 1 enables the fixture to establish an effective connection with the lathe turntable and can move precisely to a predetermined position to firmly limit the wheel hub 7. By engaging the rim of the wheel hub 7 with the rim of the wheel hub 7 through the rim engagement station 3, the wheel hub 7 can be quickly positioned, ensuring that the machining accuracy of the wheel hub 7 will not be affected by its own rotation or displacement during the lathe machining process, providing a stable foundation for the subsequent turning operation of the wheel hub 7.

[0024] In a preferred embodiment, the clamping member 2 further includes a tread clamping station 4, which is located below the rim clamping station 3. The tread clamping station 4 has the same inclination angle as the rim tread of the hub 7 so as to fit against the rim tread of the hub 7 when clamping the hub 7. The arrangement of the tread clamping station 4 and the fitting design with the same inclination angle as the rim tread of the hub 7 greatly increases the contact area between the clamp and the hub 7. This not only improves the clamping stability of the hub 7 and prevents the hub 7 from shaking or shifting during turning, further ensuring machining accuracy, but also better disperses the turning force, making the force evenly distributed in all parts of the hub 7, reducing the risk of deformation caused by excessive local force, and helping to improve the machining quality of the hub 7.

[0025] In a preferred embodiment, the movable seat 1 includes a snap-fit ​​groove 5 and a threaded groove 6. The snap-fit ​​groove 5 is used to install in the slide of the lathe turntable and can move along the slide. The threaded groove 6 is disposed at the bottom of the snap-fit ​​groove 5 and is threadedly connected to the screw of the lathe turntable so that it can move along the slide under the drive of the screw and maintain the moved position. The snap-fit ​​groove 5 cooperates with the slide of the lathe turntable, making the fixture easy to install and flexible to move and position on the slide. The threaded connection between the threaded groove 6 and the screw not only provides power for the movement of the fixture, but more importantly, it can accurately control the movement distance and positioning accuracy of the fixture, and keep the fixture firmly in the set position during the operation of the lathe, so that it will not be displaced due to vibration or other external forces, thus ensuring the stable clamping of the hub 7 by the fixture, thereby ensuring the stability and machining accuracy of the turning operation.

[0026] In a preferred embodiment, the threaded groove 6 is a semi-circular groove with an open bottom. This semi-circular groove design makes it easier to process and manufacture, reducing the difficulty and cost of the process. On the other hand, this structure has better adaptability and flexibility when it is used with the lathe turntable screw, and can move more smoothly under the drive of the screw. At the same time, the semi-circular groove can better accommodate some displacement and adjustment allowance of the screw during the threaded connection process, ensuring the stability and smoothness of the threaded connection, and further improving the overall working stability of the fixture.

[0027] In a preferred embodiment, the clamping member 2 and the movable seat 1 are made of high-strength alloy steel, which gives them excellent mechanical properties. During turning, they can effectively resist deformation and wear in the face of large cutting forces and vibrations, ensuring the long-term stability of the fixture structure. This maintains the accurate clamping and positioning of the wheel hub 7, improving the fixture's service life and reusability. Furthermore, the use of high-strength alloy steel enhances the overall rigidity of the fixture, helping to reduce machining errors caused by fixture deformation and ensuring the machining accuracy of the wheel hub 7.

[0028] In a preferred embodiment, the inner wall of the flange clamping station 3 is provided with a wear-resistant rubber pad. The wear-resistant rubber pad has anti-slip patterns. The presence of the wear-resistant rubber pad increases the friction between the flange clamping station 3 and the flange of the wheel hub 7, effectively preventing the wheel hub 7 from slipping off the clamping station during turning, thus improving the reliability and stability of clamping. The anti-slip patterns further enhance the friction, and the rubber pad has a certain degree of elasticity, which can play a buffering and shock-absorbing role when clamping the wheel hub 7, reducing the impact of turning forces on the surface of the wheel hub 7 flange, effectively protecting the surface quality of the wheel hub 7, avoiding problems such as scratches and wear, and improving the finished product quality of the wheel hub 7.

[0029] In a preferred embodiment, the surface of the tread clamping station 4 is provided with several evenly distributed elastic protrusions. These protrusions are made of rubber, and their hardness gradually decreases along the direction away from the surface of the tread clamping station 4. The elastic protrusions can better conform to the contour of the wheel hub 7 rim tread, making the contact area more uniform and larger. This enhances the adaptability of the fixture to wheel hub 7 treads of various shapes and slight errors, significantly improving clamping force and stability. The rubber material and gradually changing hardness design give the elastic protrusions good cushioning performance. Under turning forces, they can both tightly clamp the wheel hub 7 and absorb and mitigate some of the impact force through elastic deformation, preventing deformation or damage to the wheel hub 7 tread due to excessive force. This greatly improves the safety and machining quality of the wheel hub 7 during the turning process.

[0030] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A special fixture for turning wheel hubs of internal combustion engine vehicles, characterized in that: include: A movable seat, which is used to connect to a lathe turntable and can be moved to a position for clamping the wheel hub under the drive of the lathe turntable; A clamping component is integrally and fixedly connected to the top of the movable seat, and the top of the clamping component is provided with a rim engaging station, which is used to engage with the rim of the wheel hub to limit the wheel hub. The clamping component further includes a tread clamping station, which is located below the wheel flange snapping station, and the tread clamping station has the same inclination angle as the wheel flange tread of the hub so as to fit against the wheel flange tread of the hub when clamping the hub. The movable seat includes a snap-fit ​​groove and a threaded groove. The snap-fit ​​groove is used to be installed in the slide of the lathe turntable and can move along the slide. The threaded groove is provided at the bottom of the snap-fit ​​groove and is threadedly connected to the screw of the lathe turntable so that it can move along the slide under the drive of the screw and maintain the moved position.

2. The special fixture for turning wheel hubs of internal combustion engine vehicles according to claim 1, characterized in that: The threaded groove is a semi-circular groove with an opening at the bottom.

3. The special fixture for turning wheel hubs of internal combustion engine vehicles according to claim 2, characterized in that: The clamping component and the movable base are made of high-strength alloy steel.

4. The special fixture for turning wheel hubs of internal combustion engine vehicles according to claim 3, characterized in that: The inner wall of the wheel flange snap-fit ​​station is provided with a wear-resistant rubber pad, and the wear-resistant rubber pad is provided with anti-slip texture.

5. The special fixture for turning wheel hubs of internal combustion engine vehicles according to claim 4, characterized in that: The surface of the tread clamping station is provided with several evenly distributed elastic protrusions. The elastic protrusions are made of rubber material, and their hardness gradually decreases along the direction away from the surface of the tread clamping station.

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