A positioning tool clamp for processing a volute

Abstract

The utility model discloses a positioning frock clamp for vortex shell processing, it includes base, positioning portion and compression part, base includes base and side frame, base includes base and side frame, and base is used for bearing the vortex shell of waiting positioning, and the first end of side frame is provided with the abutting portion, and the abutting portion is provided with the annular boss of adapting with the inner diameter of gas outlet along the first end of first horizontal direction, when the vortex shell body is placed on the base, and the annular boss is inserted into the gas outlet, and the positioning portion can be set up on the side frame close to or away from the annular boss, and the positioning portion is used for positioning the vortex shell body through the cooperation of annular boss, and the compression part is used for compressing and fixing the vortex shell body on the side frame when the vortex shell body is positioned. The positioning frock clamp for vortex shell processing realizes the vortex shell body first positioning and then compressing through the cooperation of positioning portion, compression part and annular boss, greatly improves the positioning precision of vortex shell body, and guarantees the accuracy of subsequent processing size.

Description

Technical Field

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

[0002] A turbocharger is a device that uses the inertial force of exhaust gases from an engine to drive a turbine within a turbine housing, which in turn drives a coaxial impeller. This impeller then compresses air supplied through the air filter and forces it into the cylinders, thereby increasing the engine's output power. The turbine housing typically supports the impeller and its function is to convert the kinetic energy transferred from the impeller to the liquid (or gas) into pressure energy. As a crucial component of the turbocharger, its manufacturing quality and efficiency are extremely important.

[0003] Different volute casing machining dimensions will lead to differences in their pressurization performance. Therefore, in order to achieve the best pressurization performance, the dimensional accuracy of the volute casing is required to be high. When machining the volute casing, tooling fixtures are needed to clamp and fix the volute casing. Existing tooling fixtures do not have high positioning accuracy for the volute casing, which can easily lead to dimensional deviations in subsequent machining and affect the dimensional accuracy of the volute casing. Utility Model Content

[0004] The purpose of this invention is to provide a positioning fixture for machining volutes, in order to solve the problem of low positioning accuracy of conventional fixtures in the prior art.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A positioning fixture for machining volutes includes a base, a positioning part, and a clamping part, wherein:

[0007] The base includes a base and a side frame. The base is horizontally arranged, and the side frame is vertically installed at one end of the base. The base is configured to support the vortex housing to be positioned. The vortex housing includes a vortex housing body and an air outlet provided on the vortex housing body.

[0008] The side frame is detachably provided with a stop portion at the first end along the first horizontal direction. The first end of the stop portion along the first horizontal direction is provided with an annular boss that matches the inner diameter of the air outlet. When the volute body is placed on the base, the annular boss extends into the air outlet. The positioning portion is provided on the side frame near or away from the annular boss. The positioning portion is at least configured to position the volute body through the cooperation of the annular boss.

[0009] The clamping part is configured to clamp and fix the volute body onto the side frame when the volute body is positioned.

[0010] Furthermore, the clamping part includes a first clamping component and a second clamping component. The first clamping component is located at a first end of the volute body along a second horizontal direction, and the second clamping component is located at a second end of the volute body along a second horizontal direction. The first clamping component is configured to clamp the first end of the volute body along the second horizontal direction onto the side frame, and the second clamping component is configured to clamp the second end of the volute body along the second horizontal direction onto the side frame.

[0011] Furthermore, the first clamping assembly includes a first adjusting member, a first clamping member, and a first mounting rod. The first mounting rod is horizontally mounted on the side frame and extends along a first horizontal direction. The first clamping member is sleeved on the first mounting rod, which is close to or away from the side frame along the first horizontal direction. The first adjusting member is rotatably sleeved on the first mounting rod and located at the end of the first clamping member away from the side frame. The first adjusting member is configured to push the first clamping member closer to or away from the side frame. The first clamping member is configured to press against the first end of the volute body along a second horizontal direction when it is close to the side frame, thereby cooperating with the side frame to clamp and fix the first end of the volute body along the second horizontal direction.

[0012] The second clamping assembly includes a second adjusting member, a second clamping member, and a second mounting rod. The second mounting rod is horizontally mounted on the side frame and extends along a first horizontal direction. The second clamping member is sleeved on the second mounting rod, which is close to or away from the side frame along the first horizontal direction. The second adjusting member is rotatably sleeved on the second mounting rod and located at the end of the second clamping member away from the side frame. The second adjusting member is configured to push the second clamping member closer to or away from the side frame. The second clamping member is configured to press against the second end of the volute body along the second horizontal direction when close to the side frame, thereby cooperating with the side frame to clamp and fix the second end of the volute body along the second horizontal direction.

[0013] Furthermore, the positioning part is a positioning bolt, and a positioning platform extends from the first end of the side frame toward the first horizontal direction. The positioning platform has an internal threaded hole, which is adapted to the external threaded section of the positioning bolt. The positioning bolt passes through the internal threaded hole and is mounted on the positioning platform. The head of the positioning bolt is manually adjusted so that the shank of the positioning bolt presses against the volute body, thereby cooperating with the annular boss to position the volute body.

[0014] Furthermore, the abutment part is detachably mounted on the side frame via a disassembly assembly, which includes a disassembly bolt. The side frame has a disassembly threaded hole corresponding to the disassembly bolt, and the abutment part has a through hole in the middle. The disassembly bolt passes through the through hole and is tightened into the disassembly threaded hole, thereby detachably mounting the abutment part on the side frame.

[0015] Furthermore, the first adjusting member is a first adjusting nut. The outer side of the end of the first mounting rod away from the side frame is provided with a first external thread section that is adapted to the first adjusting nut. The first adjusting nut is screwed onto the first mounting rod through the first external thread section. The first adjusting nut is manually adjusted so that the first adjusting nut pushes the first clamping member to press against the first end of the volute body along the second horizontal direction.

[0016] Furthermore, the second adjusting component is a second adjusting nut. The outer side of the end of the second mounting rod away from the side frame is provided with a second external thread section that is adapted to the second adjusting nut. The second adjusting nut is screwed onto the second mounting rod through the second external thread section. The second adjusting nut is manually adjusted so that the second adjusting nut pushes the second clamping component against the second end of the volute body along the second horizontal direction.

[0017] Compared with the prior art, the advantages of the positioning fixture for volute machining are as follows:

[0018] 1) Through the cooperation of the positioning part, the clamping part and the annular boss, when the volute body is placed on the base, the annular boss extends into the air outlet. The positioning part positions the volute body through the cooperation of the annular boss. When the volute body is positioned, the clamping part clamps and fixes the volute body on the side frame. This realizes that the volute body is positioned first and then clamped, which greatly improves the positioning accuracy of the volute body and ensures the accuracy of subsequent processing dimensions.

[0019] 2) By setting a first clamping component and a second clamping component, the first clamping component clamps the first end of the volute body along the second horizontal direction onto the side frame, and the second clamping component clamps the second end of the volute body along the second horizontal direction onto the side frame, thereby realizing the clamping and fixing of the volute body on both sides, further improving the fixing strength of the volute body and facilitating subsequent processing. Attached Figure Description

[0020] 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.

[0021] Figure 1 This is a front view schematic diagram of a positioning fixture for machining a volute provided in an embodiment of this utility model;

[0022] Figure 2 This is a top view schematic diagram of a positioning fixture for machining a volute provided in an embodiment of this utility model. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] 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.

[0025] Please see Figure 1 and Figure 2As shown, in this embodiment, a positioning fixture for machining a volute includes a base 10, a positioning part 20, and a clamping part 30, wherein: the base 10 includes a base 11 and a side frame 12, the base 11 is horizontally arranged, and the side frame 12 is vertically installed at one end of the base 11. The base 11 is configured to support the volute to be positioned (not shown in the figure), the volute includes a volute body and an air outlet provided on the volute body; the side frame 12 is positioned along a first horizontal direction ( Figure 2 The first end of the volute body (in the X direction) is detachably provided with a stop part 40. The first end of the stop part 40 in the first horizontal direction is provided with an annular boss 41 that matches the inner diameter of the air outlet. When the volute body is placed on the base 11, the annular boss 41 extends into the air outlet. The positioning part 20 is provided on the side frame 12, which can be close to or away from the annular boss 41. The positioning part 20 is at least configured to position the volute body through the cooperation of the annular boss 41. The clamping part 30 is configured to clamp and fix the volute body on the side frame 12 when the volute body is positioned.

[0026] Specifically, the abutment part 40 is a convex plate with a preset thickness.

[0027] As can be seen, through the cooperation of the positioning part 20, the clamping part 30 and the annular boss 41, when the volute body is placed on the base 11, the annular boss 41 extends into the air outlet. The positioning part 20 positions the volute body through the cooperation of the annular boss 41. When the volute body is positioned, the clamping part 30 clamps and fixes the volute body on the side frame 12. This achieves the goal of positioning the volute body first and then clamping it, which greatly improves the positioning accuracy of the volute body and ensures the accuracy of subsequent processing dimensions.

[0028] In one embodiment, the clamping part 30 includes a first clamping assembly and a second clamping assembly, wherein the first clamping assembly is located on the volute body along the second horizontal direction ( Figure 2 The first clamping assembly is located at the first end of the volute body in the Y direction, and the second clamping assembly is located at the second end of the volute body in the second horizontal direction. The first clamping assembly is configured to clamp the first end of the volute body in the second horizontal direction onto the side frame 12, and the second clamping assembly is configured to clamp the second end of the volute body in the second horizontal direction onto the side frame 12.

[0029] As can be seen, by setting the first clamping component and the second clamping component, the first clamping component presses the first end of the volute body along the second horizontal direction onto the side frame 12, and the second clamping component presses the second end of the volute body along the second horizontal direction onto the side frame 12, thereby realizing the clamping and fixing of the volute body on both sides, further improving the fixing strength of the volute body and facilitating subsequent processing.

[0030] In one embodiment, the first clamping assembly includes a first adjusting member 31, a first clamping member 32, and a first mounting rod 33. The first mounting rod 33 is horizontally mounted on the side frame 12 and extends along a first horizontal direction. The first clamping member 32 is sleeved on the first mounting rod 33, which is close to or away from the side frame 12 along the first horizontal direction. The first adjusting member 31 is rotatably sleeved on the first mounting rod 33 and located at the end of the first clamping member 32 away from the side frame 12. The first adjusting member 31 is configured to push the first clamping member 32 closer to or away from the side frame 12. The first clamping member 32 is configured to press against the first end of the volute body along the second horizontal direction when close to the side frame 12, thereby cooperating with the side frame 12 to apply pressure to the first end of the volute body along the second horizontal direction. The second clamping assembly includes a second adjusting member 34, a second clamping member 35, and a second mounting rod 36. The second mounting rod 36 is horizontally mounted on the side frame 12 and extends along a first horizontal direction. The second clamping member 35 is sleeved on the second mounting rod 36, which is close to or away from the side frame 12 along the first horizontal direction. The second adjusting member 34 is rotatably sleeved on the second mounting rod 36 and located at the end of the second clamping member 35 away from the side frame 12. The second adjusting member 34 is configured to push the second clamping member 35 close to or away from the side frame 12. The second clamping member 35 is configured to press against the second end of the volute body along the second horizontal direction when close to the side frame 12, thereby cooperating with the side frame 12 to clamp and fix the second end of the volute body along the second horizontal direction.

[0031] Specifically, the first clamping member 32 is rotatably mounted on the first mounting rod 33 at a preset angle, and the second clamping member 35 is rotatably mounted on the second mounting rod 36 at a preset angle.

[0032] Specifically, both the first clamping member 32 and the second clamping member 35 are clamping blocks with a preset width.

[0033] As can be seen, through the cooperation of the first adjusting member 31, the first pressing member 32, the second adjusting member 34, and the second pressing member 35, the first adjusting member 31 pushes the first pressing member 32 close to the side frame 12 and presses it against the first end of the volute body along the second horizontal direction, thus cooperating with the side frame 12 to press and fix the first end of the volute body along the second horizontal direction. The second adjusting member 34 pushes the second pressing member 35 close to the side frame 12 and presses it against the second end of the volute body along the second horizontal direction, thus cooperating with the side frame 12 to press and fix the second end of the volute body along the second horizontal direction. This achieves the pressing and fixing of both ends of the volute body, with good pressing effect and convenient subsequent processing.

[0034] In one implementation, the positioning part 20 is a positioning bolt 21. A positioning platform 22 extends from the first end of the side frame 12 toward the first horizontal direction. An internal threaded hole is provided in the positioning platform 22. The internal threaded hole is adapted to the external threaded section of the positioning bolt 21. The positioning bolt 21 passes through the internal threaded hole and is mounted on the positioning platform 22. The head of the positioning bolt 21 is manually adjusted so that the rod of the positioning bolt 21 presses against the volute body, thereby cooperating with the annular boss 41 to position the volute body.

[0035] As can be seen, by setting the positioning part 20 as the positioning bolt 21, and by adjusting the head of the positioning bolt 21 so that the rod of the positioning bolt 21 presses against the volute body, and then cooperating with the annular boss 41 to position the volute body, the volute body is positioned quickly, providing a simple and quick positioning method.

[0036] In one embodiment, the abutment part 40 is detachably mounted on the side frame 12 via a disassembly assembly, which includes a disassembly bolt 50. The side frame 12 has a disassembly threaded hole corresponding to the disassembly bolt 50. A through hole is provided in the middle of the abutment part 40. After the disassembly bolt 50 passes through the through hole, it is tightened into the disassembly threaded hole, thereby detachably mounting the abutment part 40 on the side frame 12.

[0037] As can be seen, the abutment is detachably mounted on the side frame 12 through the engagement of the mounting bolt 50 and the mounting threaded hole, which facilitates the replacement of the abutment part 40. At the same time, different specifications of abutment can be replaced as needed to achieve positioning of different specifications of volute body, thus improving versatility.

[0038] In one embodiment, the first adjusting member 31 is a first adjusting nut. The outer side of the end of the first mounting rod 33 away from the side frame 12 is provided with a first external thread section 330 that is adapted to the first adjusting nut. The first adjusting nut is screwed onto the first mounting rod 33 through the first external thread section 330. The first adjusting nut is manually adjusted so that the first adjusting nut pushes the first clamping member 32 to press against the first end of the volute body along the second horizontal direction.

[0039] As can be seen, by setting the first adjusting member 31 as the first adjusting nut, and providing a first external thread section 330 that is adapted to it at one end of the first mounting rod 33, the first clamping member 32 presses against the first end of the volute body along the second horizontal direction through the threaded engagement of the first adjusting nut and the first external thread section 330, thus realizing the convenient adjustment of the clamping force on the volute body, and providing a first adjusting member 31 with a simple adjustment method and good adjustment effect.

[0040] In one embodiment, the second adjusting member 34 is a second adjusting nut. The outer side of the end of the second mounting rod 36 away from the side frame 12 is provided with a second external thread section 360 that is adapted to the second adjusting nut. The second adjusting nut is screwed onto the second mounting rod 36 through the second external thread section 360. The second adjusting nut is manually adjusted so that the second adjusting nut pushes the second clamping member 35 to press against the second end of the volute body along the second horizontal direction.

[0041] As can be seen, by setting the second adjusting member 34 as the second adjusting nut, and providing a matching second external thread section 360 at one end of the second mounting rod 36, the second clamping member 35 presses against the second end of the volute body along the second horizontal direction through the threaded engagement of the second adjusting nut and the second external thread section 360, thus realizing convenient adjustment of the clamping force on the volute body and providing a second adjusting member 34 with a simple adjustment method and good adjustment effect.

[0042] When clamping the aforementioned positioning fixture for volute machining: First, place the volute body on the base 11, with the vent of the volute body engaging with the outer periphery of the annular boss 41; then, adjust the positioning part 20 closer to the annular boss 41, and the positioning part 20 positions the volute body through the engagement with the annular boss 41; finally, adjust the first clamping member 32 to be flush with the first end of the volute body along the second horizontal direction, and adjust the first adjusting member 31 to push the first clamping member 32 closer to the side frame 12 until the first clamping member 32 presses against the first end of the volute body along the second horizontal direction, cooperating with the side frame 12 to clamp and fix the first end of the volute body along the second horizontal direction; adjust the second clamping member 35 to be flush with the second end of the volute body along the second horizontal direction, and adjust the second adjusting member 34 to push the second clamping member 35 closer to the side frame 12 until the second clamping member 35 presses against the second end of the volute body along the second horizontal direction, cooperating with the side frame 12 to clamp and fix the second end of the volute body along the second horizontal direction.

[0043] 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 positioning fixture for machining volutes, characterized in that, The positioning fixture for machining the volute includes a base, a positioning part, and a clamping part, wherein: The base includes a base and a side frame. The base is horizontally arranged, and the side frame is vertically installed at one end of the base. The base is configured to support the vortex housing to be positioned. The vortex housing includes a vortex housing body and an air outlet provided on the vortex housing body. The side frame is detachably provided with a stop portion at the first end along the first horizontal direction. The first end of the stop portion along the first horizontal direction is provided with an annular boss that matches the inner diameter of the air outlet. When the volute body is placed on the base, the annular boss extends into the air outlet. The positioning portion is provided on the side frame near or away from the annular boss. The positioning portion is at least configured to position the volute body through the cooperation of the annular boss. The clamping part is configured to clamp and fix the volute body onto the side frame when the volute body is positioned.

2. The positioning fixture for machining a volute according to claim 1, characterized in that, The clamping part includes a first clamping component and a second clamping component. The first clamping component is located at a first end of the volute body along a second horizontal direction, and the second clamping component is located at a second end of the volute body along a second horizontal direction. The first clamping component is configured to clamp the first end of the volute body along the second horizontal direction onto the side frame, and the second clamping component is configured to clamp the second end of the volute body along the second horizontal direction onto the side frame.

3. The positioning fixture for machining a volute according to claim 2, characterized in that, The first clamping assembly includes a first adjusting member, a first clamping member, and a first mounting rod. The first mounting rod is horizontally mounted on the side frame and extends along a first horizontal direction. The first clamping member is sleeved on the first mounting rod, which is close to or away from the side frame along the first horizontal direction. The first adjusting member is rotatably sleeved on the first mounting rod and located at the end of the first clamping member away from the side frame. The first adjusting member is configured to push the first clamping member closer to or away from the side frame. The first clamping member is configured to press against the first end of the volute body along a second horizontal direction when it is close to the side frame, thereby cooperating with the side frame to clamp and fix the first end of the volute body along the second horizontal direction. The second clamping assembly includes a second adjusting member, a second clamping member, and a second mounting rod. The second mounting rod is horizontally mounted on the side frame and extends along a first horizontal direction. The second clamping member is sleeved on the second mounting rod, which is close to or away from the side frame along the first horizontal direction. The second adjusting member is rotatably sleeved on the second mounting rod and located at the end of the second clamping member away from the side frame. The second adjusting member is configured to push the second clamping member closer to or away from the side frame. The second clamping member is configured to press against the second end of the volute body along the second horizontal direction when close to the side frame, thereby cooperating with the side frame to clamp and fix the second end of the volute body along the second horizontal direction.

4. The positioning fixture for machining a volute according to claim 1, characterized in that, The positioning part is a positioning bolt. A positioning platform extends from the first end of the side frame toward the first horizontal direction. An internal threaded hole is opened in the positioning platform. The internal threaded hole is adapted to the external threaded section of the positioning bolt. The positioning bolt passes through the internal threaded hole and is mounted on the positioning platform. The head of the positioning bolt is manually adjusted so that the shank of the positioning bolt presses against the volute body, thereby cooperating with the annular boss to position the volute body.

5. The positioning fixture for machining a volute according to claim 1, characterized in that, The abutment part is detachably mounted on the side frame via a disassembly assembly, which includes a disassembly bolt. The side frame has a disassembly threaded hole corresponding to the disassembly bolt. The abutment part has a through hole in the middle. The disassembly bolt passes through the through hole and is tightened into the disassembly threaded hole, thereby detachably mounting the abutment part on the side frame.

6. The positioning fixture for machining a volute according to claim 3, characterized in that, The first adjusting component is a first adjusting nut. The outer side of the end of the first mounting rod away from the side frame is provided with a first external thread section that is adapted to the first adjusting nut. The first adjusting nut is screwed onto the first mounting rod through the first external thread section. The first adjusting nut is manually adjusted so that the first adjusting nut pushes the first clamping component to press against the first end of the volute body along the second horizontal direction.

7. The positioning fixture for machining a volute according to claim 3, characterized in that, The second adjusting component is a second adjusting nut. The outer side of the end of the second mounting rod away from the side frame is provided with a second external thread section that is adapted to the second adjusting nut. The second adjusting nut is screwed onto the second mounting rod through the second external thread section. The second adjusting nut is manually adjusted so that the second adjusting nut pushes the second clamping component against the second end of the volute body along the second horizontal direction.

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