Clamp for finish machining of turbine shaft

Abstract

A turbine is arranged at the first end of the turbine shaft, a bearing mounting part is arranged at the second end of the turbine shaft, the turbine shaft comprises a mounting part and at least two fixing pieces, the fixing pieces are arranged on the periphery of the mounting part at equal intervals, each fixing piece comprises a limiting rod, and the limiting rods are arranged on the periphery of the mounting part. The first end of the limiting rod is vertically and fixedly mounted on the mounting part, the second end of the limiting rod is provided with a guide surface, the top end of the guide surface is provided with a limiting groove, and the second end of the limiting rod is bent towards the inner side. According to the clamp for finish machining of the turbine shaft, the turbine part of the turbine shaft is fixed through cooperation of the mounting part and the multiple fixing pieces, and the machining efficiency of the turbine shaft is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to turbine manufacturing technical field especially, a kind of clamp for turbine shaft finish machining. BACKGROUND

[0002] In the background art of automobile industry, turbine shaft is indispensable key part in turbocharging system. With the continuous improvement of the power performance requirement of automobile, turbocharging technology has been widely applied.

[0003] Turbine shaft plays a vital role in it, it connects turbine and compressor impeller, when automobile engine runs, high-temperature exhaust gas pushes turbine to rotate, turbine shaft is rotated at high speed, and power is transmitted to compressor impeller, so that intake air is compressed, air amount entering engine cylinder is increased, combustion efficiency and power output are improved.

[0004] In manufacturing process, high-strength, high-temperature-resistant metal materials, such as alloy steel, are used for automobile turbine shaft, and the machining precision requirement is extremely high. To ensure that it can stably and efficiently transmit power under high speed and complex working conditions, the existing turbine shaft has the problem of inconvenient fixation due to the one-piece turbine at the end. SUMMARY

[0005] To solve the related technical problems, the utility model provides a kind of clamp for turbine shaft finish machining to solve the above-mentioned problems.

[0006] To achieve the above purpose, the embodiments of the utility model adopt the following technical solutions:

[0007] A kind of clamp for turbine shaft finish machining, the first end of turbine shaft is provided with turbine, the second end of turbine shaft is provided with bearing mounting part, it includes installation part and at least two fixed pieces, wherein:

[0008] Multiple fixed pieces are equidistantly spaced apart on the circumference of the installation part,

[0009] The fixed piece includes a limiting rod, the first end of the limiting rod is vertically fixedly installed on the installation part, the second end of the limiting rod is provided with a guide surface, the top end of the guide surface is provided with a limiting slot, and the second end of the limiting rod is inwardly curved.

[0010] Optionally, the fixed piece and the installation part are integrally formed.

[0011] Optionally, the guide surface is inwardly inclined at the second end of the limiting rod, the first end of the guide surface is connected to the inner wall of the limiting rod, and the second end of the guide surface is connected to the bottom surface of the limiting slot.

[0012] Optionally, a reinforcing portion is arranged between the first end of the limiting rod and the mounting portion.

[0013] Optionally, the thickness of the second end of the limiting rod is less than the thickness of the first end of the limiting rod.

[0014] Optionally, the top periphery of the mounting portion is provided with an annular baffle, and the limiting rod is vertically arranged on the annular baffle.

[0015] Optionally, the cross section of the mounting portion is T-shaped.

[0016] The utility model discloses beneficial effect is compared with prior art, the utility model provides a kind of fixture for turbine shaft finish machining, which has the following beneficial effects:

[0017] 1. By the cooperation of the mounting portion and the plurality of fixing members, the turbine portion of the turbine shaft is fixed, and the machining efficiency of the turbine shaft is improved.

[0018] 2. By bending the second end of the limiting rod inwardly, the strength of the limiting rod is enhanced.

[0019] 3. By integrally forming the fixing member and the mounting portion, the connection between the fixing member and the mounting portion is more stable. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate and understand the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the background art and embodiment description of the utility model. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the utility model and these drawings without creative labor.

[0021] Figure 1 is a top view of the fixture for turbine shaft finish machining provided by the embodiments of the utility model;

[0022] Figure 2 is a side view of the fixture for turbine shaft finish machining provided by the embodiments of the utility model. DETAILED DESCRIPTION

[0023] The utility model will be further described in detail below in combination with the drawings.

[0024] For the convenience of understanding the utility model, the utility model will be described more fully below with reference to the relevant drawings. The drawings show the preferred embodiments of the utility model. However, the utility model can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there can be a middle component. When a component is referred to as "connected to" another component, it can be directly connected to the other component or there can be a middle component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as understood by a person skilled in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing the specific embodiments and are not intended to limit the utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0025] Embodiment

[0026] Please refer to Figure 1 and Figure 2 The embodiment provides a clamp for turbine shaft finishing, which comprises a mounting portion 10 and at least two fixing pieces 20, a plurality of fixing pieces 20 are equidistantly arranged on the circumference of the mounting portion 10, the fixing piece 20 comprises a limiting rod, the first end of the limiting rod is vertically fixedly installed on the mounting portion 10, the second end of the limiting rod is provided with a guide surface 21, the top end of the guide surface 21 is provided with a limiting groove 22, and the second end of the limiting rod is inwardly bent.

[0027] It can be seen that by equidistantly arranging a plurality of fixing pieces 20 on the circumference of the mounting portion 10, a reliable positioning and fixing basis is provided for the finishing of the turbine shaft, the limiting rod of each fixing piece 20 is vertically installed on the mounting portion 10, the second end of the limiting rod is inwardly bent, cooperates with the guide surface 21 and the limiting groove 22, can constrain the turbine shaft from multiple directions, limit the displacement and rotation of the turbine shaft in the machining process, and ensure that the turbine shaft maintains a stable position during machining, thereby improving the precision and quality of the finishing.

[0028] As an implementation manner, the fixing piece 20 and the mounting portion 10 are integrally formed.

[0029] It can be seen that the fixing member 20 and the mounting portion 10 are integrally formed, eliminating the connection gap therebetween and reducing the unstable factors of the clamp caused by loosening or deformation of the connection part. The structure makes the overall strength of the clamp higher, and when bearing various forces in the turbine shaft machining process, the clamp can maintain better rigidity and stability, further improving the fixing effect on the turbine shaft and ensuring the machining precision.

[0030] As an embodiment, the guide surface 21 is inwardly inclined and arranged at the second end of the limiting rod, the first end of the guide surface 21 is connected to the inner wall of the limiting rod, and the second end of the guide surface 21 is connected to the bottom surface of the limiting groove 22.

[0031] It can be seen that the guide surface 21 is inwardly inclined and arranged at the second end of the limiting rod, and is connected to the inner wall of the limiting rod and the bottom surface of the limiting groove 22. This design provides good guiding effect for placing the turbine shaft. When placing the turbine shaft on the clamp, the inclined guide surface 21 can guide the turbine shaft to smoothly enter the limiting groove 22, facilitating the operator to quickly and accurately position the turbine shaft on the clamp and improving the clamping efficiency. At the same time, the cooperation of the guide surface 21 and the limiting groove 22 further enhances the positioning accuracy of the turbine shaft, ensuring that the turbine shaft will not deviate during the machining process.

[0032] As an embodiment, a reinforcing portion 23 is arranged between the first end of the limiting rod and the mounting portion 10.

[0033] It can be seen that the reinforcing portion 23 is arranged between the first end of the limiting rod and the mounting portion 10, effectively enhancing the connection strength of the limiting rod and the mounting portion 10. During the turbine shaft machining process, the limiting rod will bear various forces from the turbine shaft. The reinforcing portion 23 can disperse these forces, avoiding the connection between the limiting rod and the mounting portion 10 from being broken or deformed due to excessive force, improving the overall structural reliability of the clamp and prolonging the service life of the clamp.

[0034] As an embodiment, the thickness of the second end of the limiting rod is less than the thickness of the first end of the limiting rod.

[0035] It can be seen that the thickness of the second end of the limiting rod is less than the thickness of the first end, which reduces the overall weight of the clamp and lowers the material cost while ensuring effective limiting of the turbine shaft by the limiting rod. At the same time, the force distribution of the limiting rod is more uniform, improving the stability and durability of the clamp.

[0036] As an embodiment, an annular baffle 11 is arranged on the top periphery of the mounting portion 10, and the limiting rod is vertically arranged on the annular baffle 11.

[0037] It can be seen that the annular baffle 11 arranged at the top periphery of the mounting portion 10 can block sundries, preventing sundries such as cutting chips and cooling liquid from entering the inside of the clamp during machining, thereby affecting the positioning and machining precision of the turbine shaft. In addition, the annular baffle 11 provides a stable mounting base for the limiting rod, so that the limiting rod is more firmly mounted, and the positioning precision and fixing effect of the clamp on the turbine shaft are further improved.

[0038] As an embodiment, the cross section of the mounting portion 10 is T-shaped.

[0039] It can be seen that the cross section of the mounting portion 10 is T-shaped, which increases the contact area of the mounting portion 10 with the machining equipment, improves the stability of the clamp when mounted on the machining equipment, and at the same time, the T-shaped structure can better withstand various forces generated during machining of the turbine shaft, thereby enhancing the carrying capacity of the clamp and ensuring that the clamp will not move or deform due to excessive force during machining, thereby providing reliable support for the finish machining of the turbine shaft.

[0040] In the embodiments disclosed in the present application, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense. For example, "connecting" can be fixed connection, detachable connection, or integral connection; "connecting" can be direct connection, or indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the embodiments disclosed in the present application can be understood according to the specific circumstances.

[0041] The above embodiments only illustrate the basic principles and characteristics of the present application, and the present application is not limited by the above examples. Without departing from the spirit and scope of the present application, various changes and modifications can be made to the present application, and these changes and modifications all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A jig for finish machining of a turbine shaft, a first end of the turbine shaft being provided with a turbine, and a second end of the turbine shaft being provided with a bearing mounting portion, characterized by, The clamp for turbine shaft finishing comprises a mounting part and at least two fixing parts, wherein: The plurality of fixing parts are equidistantly arranged on the circumference of the mounting part, The fixing part comprises a limiting rod, the first end of the limiting rod is vertically fixedly mounted on the mounting part, the second end of the limiting rod is provided with a guide surface, the top end of the guide surface is provided with a limiting groove, and the second end of the limiting rod is inwardly curved.

2. A fixture for finishing a turbine shaft as claimed in claim 1, wherein, The fixing part and the mounting part are integrally formed.

3. A fixture for finishing a turbine shaft as defined in claim 1, wherein The guide surface is inwardly and obliquely arranged at the second end of the limiting rod, the first end of the guide surface is connected with the inner wall of the limiting rod, and the second end of the guide surface is connected with the bottom surface of the limiting groove.

4. A fixture for finishing a turbine shaft as defined in claim 1, wherein A reinforcing part is arranged between the first end of the limiting rod and the mounting part.

5. A fixture for finishing a turbine shaft as defined in claim 1, wherein The thickness of the second end of the limiting rod is smaller than the thickness of the first end of the limiting rod.

6. A fixture for finishing a turbine shaft as defined in claim 1, wherein The top circumference of the mounting part is provided with an annular baffle, and the limiting rod is vertically arranged on the annular baffle.

7. A fixture for finishing a turbine shaft as defined in claim 1 wherein, The cross section of the mounting part is T-shaped.

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