A volute machining tool

Abstract

The application discloses a vortex shell machining tool, which comprises a base, a supporting piece, a first limiting assembly, a second limiting assembly, a third limiting assembly, a fourth limiting assembly, a first limiting block and a second limiting block, the first limiting block and the second limiting block are equidistantly arranged on the base, and a limiting groove with an upward opening is formed in the top of each of the first limiting block and the second limiting block; the first limiting assembly is arranged at the first end of the first limiting block, the second limiting assembly is arranged at the first end of the second limiting block, the third limiting assembly is arranged between the first limiting assembly and the second limiting assembly, and the fourth limiting assembly is arranged on the base; the supporting piece is arranged on the base and is symmetrically arranged with the third limiting assembly about a first horizontal direction. The vortex shell machining tool improves the stability of the tool in fixing the vortex shell through cooperation of the supporting piece, the first limiting assembly, the second limiting assembly, the third limiting assembly, the fourth limiting assembly, the first limiting block and the second limiting block.

Description

Technical Field

[0001] This utility model relates to the field of turbocharger machining technology, and in particular to a machining fixture for turbine housings. Background Technology

[0002] A turbine is a fan in a car or airplane engine that uses exhaust gases to blow fuel vapor into the engine, thereby improving engine performance. A turbine is a rotating power machine that converts the energy of a flowing working fluid into mechanical work. It is one of the main components of aircraft engines, gas turbines, and steam turbines.

[0003] The turbine housing is a core component that converts engine exhaust energy into mechanical energy. Its design directly affects boosting efficiency, response speed, and reliability. During the machining process of the turbine housing, existing tooling has a problem of low stability in fixing the turbine housing due to its special shape. Utility Model Content

[0004] To address the related technical problems, the purpose of this utility model is to provide a volute shell machining fixture to solve the problem of low stability in fixing the volute shell.

[0005] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:

[0006] A machining fixture for a volute includes a base, a support member, a first limiting assembly, a second limiting assembly, a third limiting assembly, a fourth limiting assembly, a first limiting block, and a second limiting block, wherein:

[0007] The first limiting block and the second limiting block are equidistantly arranged on the base along the first horizontal direction, and the top of the first limiting block and the second limiting block are provided with an arc-shaped limiting groove with an upward opening.

[0008] The first limiting component is disposed at the first end of the first limiting block along the second horizontal direction, the second limiting component is disposed at the first end of the second limiting block along the second horizontal direction, the third limiting component is disposed between the first limiting component and the second limiting component, and the fourth limiting component is disposed on the base and spaced apart from the second end of the second limiting block.

[0009] The support is mounted on the base and is symmetrically positioned with respect to the third limiting component about the first horizontal direction.

[0010] Optionally, the first limiting component includes a first pressure plate, a first bolt, a first nut, and a first support rod. The first bolt is vertically disposed at the first end of the first limiting block. The first pressure plate has a first clearance hole and is sleeved on the first bolt. The top of the first support rod has a threaded portion, and the first end of the first pressure plate has a first threaded hole. The first support rod is detachably connected to the first threaded hole. The first nut is threadedly connected to the first bolt to cooperate with the first support rod and abut the second end of the first pressure plate against the preset position of the volute housing placed in the limiting groove.

[0011] Optionally, the second limiting assembly includes a second pressure plate, a second bolt, a second nut, and a second support rod. The second bolt is vertically disposed at the first end of the second limiting block. The second pressure plate has a second clearance hole and is sleeved on the second bolt. The top of the second support rod has a threaded portion, and the first end of the second pressure plate has a second threaded hole. The second support rod is detachably connected to the second threaded hole. The second nut is threadedly connected to the second bolt to cooperate with the second support rod and abut against the preset position of the volute housing placed in the limiting groove.

[0012] Optionally, the third limiting component includes a third pressure plate, a third bolt, a third nut, and a third support rod. The third bolt is vertically mounted on the base. The third pressure plate has a slotted hole and is fitted onto the third bolt. The third support rod is vertically mounted on the base. The top end of the third support rod abuts against the bottom surface of the first end of the third pressure plate. The third nut is threadedly connected to the third bolt to cooperate with the third support rod, so that the second end of the third pressure plate abuts against the preset position of the volute housing placed in the limiting groove.

[0013] Optionally, the fourth limiting component includes a fourth pressure plate, a fourth bolt, and a fourth nut. The fourth bolt is vertically mounted on the base. The fourth pressure plate has a third clearance hole. The fourth pressure plate is sleeved on the fourth bolt. The fourth nut is threadedly connected to the fourth bolt so that the second end of the fourth pressure plate abuts against the preset position of the vortex housing placed in the limiting groove.

[0014] Optionally, the top ends of both ends of the first limiting block are provided with a first support surface.

[0015] Optionally, a second support surface is provided at both ends of the second limiting block.

[0016] Optionally, the support includes a fifth support rod and a support block. The fifth support rod is vertically mounted on the base, and the support block is detachably connected to the top of the fifth support rod. A limiting groove is provided on the support block.

[0017] The beneficial effects of this utility model are as follows: Compared with the prior art, the volute machining fixture provided by this utility model has the following beneficial effects:

[0018] 1. The first and second limiting components laterally limit the volute housing from both ends to prevent it from shifting horizontally during machining; the third limiting component clamps it from the top downwards to counteract the upward warping of the volute housing caused by the cutting force; the fourth limiting component provides auxiliary positioning from the end to prevent axial movement of the volute housing; the support component is symmetrically arranged with the third limiting component to form "symmetrical support from top to bottom", which further balances the force on the volute housing and improves the stability of the tooling for fixing the volute housing;

[0019] 2. The slotted holes on the pressure plate allow for fine adjustment of the pressure plate position along the bolt axis. The pressure plate contact point can be adjusted according to the actual size of the volute housing to avoid inadequate or excessive clamping due to volute housing size errors. It is suitable for dimensional fluctuations of different batches of the same type of volute housing.

[0020] 3. The support rod and bolt form a "two-point support" to ensure that the pressure plate remains horizontal when it abuts the volute, avoiding local crushing damage caused by the tilting of the pressure plate; the threaded part at the top of the support rod is detachably connected to the threaded hole of the pressure plate, and support rods of different lengths can be replaced to adapt to volutes of different heights, improving adaptability. Attached Figure Description

[0021] To more clearly illustrate and understand the technical solutions in the embodiments of this utility model, the accompanying drawings used in the background technology and embodiment description of this utility model will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0022] Figure 1 This is a top view of a volute machining fixture provided in an embodiment of this utility model;

[0023] Figure 2 This is a side view of a volute machining fixture provided in an embodiment of this utility model. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] To facilitate understanding of this utility model, a more complete description of it will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of this utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] Please see Figure 1 and Figure 2 As shown, this embodiment provides a volute machining fixture, which includes a base 10, a support member 20, a first limiting component 30, a second limiting component 40, a third limiting component 50, a fourth limiting component 60, a first limiting block 70, and a second limiting block 80. The first limiting block 70 and the second limiting block 80 are equidistantly arranged on the base 10 along a first horizontal direction (x direction in the figure). The top of both the first limiting block 70 and the second limiting block 80 is provided with an upward-opening arc-shaped limiting groove 90. The first limiting component 30 is arranged at the first end of the first limiting block 70 along a second horizontal direction, the second limiting component 40 is arranged at the first end of the second limiting block 80 along a second horizontal direction (y direction in the figure), the third limiting component 50 is arranged between the first limiting component 30 and the second limiting component 40, and the fourth limiting component 60 is arranged on the base 10 and spaced apart from the second end of the second limiting block 80. The support member 20 is arranged on the base 10 and is symmetrically arranged with the third limiting component 50 about the first horizontal direction.

[0027] As can be seen, the first limiting component 30 and the second limiting component 40 laterally limit the volute from both ends to prevent the volute from shifting horizontally during machining; the third limiting component 50 clamps downward from the top to counteract the upward warping of the volute caused by the cutting force; the fourth limiting component 60 provides auxiliary positioning from the end to prevent the volute from moving axially; the support component 20 and the third limiting component 50 are symmetrically arranged to form "symmetrical support from top to bottom", which further balances the force on the volute and improves the stability of the tooling for fixing the volute.

[0028] In one embodiment, the first limiting assembly 30 includes a first pressure plate 31, a first bolt 32, a first nut 33, and a first support rod 34. The first bolt 32 is vertically disposed at the first end of the first limiting block 70. The first pressure plate 31 has a first clearance hole (not shown in the figure) and is sleeved on the first bolt 32. The top of the first support rod 34 has a threaded portion, and the first end of the first pressure plate 31 has a first threaded hole 35. The first support rod 34 is detachably connected to the first threaded hole 35. The first nut 33 is threadedly connected to the first bolt 32 to cooperate with the first support rod 34. Rod 34 abuts the second end of the first pressure plate 31 against the preset position of the volute in the limiting groove 90; the second limiting assembly 40 includes a second pressure plate 41, a second bolt 42, a second nut 43, and a second support rod 44. The second bolt 42 is vertically disposed at the first end of the second limiting block 80. A second clearance hole (not shown in the figure) is provided on the second pressure plate 41. The second pressure plate 41 is sleeved on the second bolt 42. The top of the second support rod 44 is provided with a threaded part. A second threaded hole 45 is provided at the first end of the second pressure plate 41. The second support rod 44 is detachably connected to the second threaded hole 45. The second nut 43 is threadedly connected to the second bolt 42 to cooperate with the second support rod 44, so that the second end of the second pressure plate 41 abuts against the preset position of the volute in the limiting groove 90; the third limiting assembly 50 includes a third pressure plate 51, a third bolt 52, a third nut 53 and a third support rod 54, the third bolt 52 is vertically set on the base 10, the third pressure plate 51 has a strip hole 55, the third pressure plate 51 is sleeved on the third bolt 52, the third support rod 54 is vertically set on the base 10, and the top end of the third support rod 54 abuts against the bottom surface of the first end of the third pressure plate 51. Nut 53 is threadedly connected to the third bolt 52 to cooperate with the third support rod 54, so that the second end of the third pressure plate 51 is placed against the preset position of the volute in the limiting groove 90; the fourth limiting assembly 60 includes a fourth pressure plate 61, a fourth bolt 62 and a fourth nut 63. The fourth bolt 62 is vertically set on the base 10. A third clearance hole (not shown in the figure) is opened on the fourth pressure plate 61. The fourth pressure plate 61 is sleeved on the fourth bolt 62. The fourth nut 63 is threadedly connected to the fourth bolt 62 to place the second end of the fourth pressure plate 61 against the preset position of the volute in the limiting groove 90.

[0029] As can be seen, the slotted hole on the pressure plate allows for fine adjustment of the pressure plate's position along the bolt axis. The pressure plate's contact point can be adjusted according to the actual size of the volute housing, avoiding inadequate or excessive clamping due to volute housing size errors, and adapting to dimensional fluctuations in different batches of the same type of volute housing. The support rod and bolt form a "two-point support" to ensure that the pressure plate remains horizontal when contacting the volute housing, avoiding localized damage caused by pressure plate tilting. The threaded part at the top of the support rod is detachably connected to the threaded hole of the pressure plate, allowing for the replacement of support rods of different lengths to adapt to volute housings of different heights, improving adaptability flexibility.

[0030] In one embodiment, the top ends of both ends of the first limiting block 70 are provided with a first support surface 71, and the top ends of both ends of the second limiting block 80 are provided with a second support surface 81.

[0031] As can be seen, the first support surface 71 at both ends of the first limiting block 70 and the second support surface 81 at both ends of the second limiting block 80 can fit into the planar area of ​​the end of the vortex housing, forming a composite contact structure of "planar + arc" with the arc-shaped limiting groove 90. This structure adapts to the arc shape of the vortex housing body through the arc groove and stabilizes the end plane through the support surface, avoiding single-point stress on the end of the vortex housing due to only being supported by the arc groove. At the same time, the setting of the support surface increases the contact area between the limiting block and the vortex housing, improving the stability of the turbine fixing.

[0032] In one embodiment, the support member 20 includes a fifth support rod 21 and a support block 22. The fifth support rod 21 is vertically mounted on the base 10, and the support block 22 is detachably connected to the top of the fifth support rod 21. A limiting groove 23 is provided on the support block 22.

[0033] As can be seen, the fifth support rod 21 of the support member 20 provides vertical support, and the limiting groove 23 on the support block 22 can fit the protrusion or groove structure at the bottom of the volute shell, providing support force from the bottom upward. It cooperates with the third limiting component 50 to balance the force on the volute shell and prevent the volute shell from collapsing downward due to gravity or cutting force during processing, thus ensuring the flatness of the fixed volute shell.

[0034] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0035] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above examples. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A tooling for machining a volute, characterized in that, The volute machining fixture includes a base, a support, a first limiting component, a second limiting component, a third limiting component, a fourth limiting component, a first limiting block, and a second limiting block, wherein: The first limiting block and the second limiting block are equidistantly arranged on the base along the first horizontal direction, and the top of the first limiting block and the second limiting block are both provided with an arc-shaped limiting groove with an upward opening. The first limiting component is disposed at the first end of the first limiting block along the second horizontal direction, the second limiting component is disposed at the first end of the second limiting block along the second horizontal direction, the third limiting component is disposed between the first limiting component and the second limiting component, and the fourth limiting component is disposed on the base and spaced apart from the second end of the second limiting block; The support member is disposed on the base and is symmetrically arranged with the third limiting component about the first horizontal direction.

2. The machining fixture for a volute according to claim 1, characterized in that, The first limiting component includes a first pressure plate, a first bolt, a first nut, and a first support rod. The first bolt is vertically disposed at the first end of the first limiting block. The first pressure plate has a first clearance hole and is sleeved on the first bolt. The top of the first support rod has a threaded portion, and the first end of the first pressure plate has a first threaded hole. The first support rod is detachably connected to the first threaded hole. The first nut is threadedly connected to the first bolt to cooperate with the first support rod and place the second end of the first pressure plate against the preset position of the volute in the limiting groove.

3. The machining fixture for a volute according to claim 1, characterized in that, The second limiting assembly includes a second pressure plate, a second bolt, a second nut, and a second support rod. The second bolt is vertically disposed at the first end of the second limiting block. The second pressure plate has a second clearance hole and is sleeved on the second bolt. The top of the second support rod has a threaded portion, and the first end of the second pressure plate has a second threaded hole. The second support rod is detachably connected to the second threaded hole. The second nut is threadedly connected to the second bolt to cooperate with the second support rod and place the second end of the second pressure plate against the preset position of the volute in the limiting groove.

4. The machining fixture for a volute according to claim 1, characterized in that, The third limiting component includes a third pressure plate, a third bolt, a third nut, and a third support rod. The third bolt is vertically mounted on the base. The third pressure plate has a slotted hole and is fitted onto the third bolt. The third support rod is vertically mounted on the base. The top end of the third support rod abuts against the bottom surface of the first end of the third pressure plate. The third nut is threadedly connected to the third bolt to cooperate with the third support rod, so that the second end of the third pressure plate abuts against the preset position of the volute housing placed in the limiting groove.

5. The machining fixture for a volute according to claim 1, characterized in that, The fourth limiting component includes a fourth pressure plate, a fourth bolt, and a fourth nut. The fourth bolt is vertically mounted on the base. The fourth pressure plate has a third clearance hole. The fourth pressure plate is sleeved on the fourth bolt. The fourth nut is threadedly connected to the fourth bolt so that the second end of the fourth pressure plate abuts against the preset position of the vortex housing placed in the limiting groove.

6. The machining fixture for a volute according to claim 1, characterized in that, The first limiting block has a first support surface at both ends.

7. The machining fixture for a volute according to claim 1, characterized in that, The top ends of both ends of the second limiting block are provided with a second support surface.

8. The machining fixture for a volute according to claim 1, characterized in that, The support includes a fifth support rod and a support block. The fifth support rod is vertically mounted on the base, and the support block is detachably connected to the top of the fifth support rod. A limiting groove is formed on the support block.

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