Clamp device used in gas turbine blade machining

Abstract

The utility model relates to a clamp device used in gas turbine blade machining, which comprises a bottom plate, a first end, a second end, an upper surface and a lower surface. The clamp body is arranged on the upper surface, close to the first end, of the bottom plate; the groove is close to the bottom of the clamp body and extends from the first end to the second end on the bottom plate; the auxiliary fixing piece is inserted into the groove and is in a polygonal shape with a concave arc-shaped notch, the concave arc-shaped notch has a radian matched with the radian of the gas turbine blade, the concave arc-shaped notch faces the second end of the bottom plate, and the end, opposite to the concave arc-shaped notch and close to the first end of the bottom plate, of the auxiliary fixing piece is fixed to the clamp body; the gas turbine blade is mounted on the clamping interface such that the gas turbine blade matches the concave arcuate cutout and there is a predetermined gap between the gas turbine blade and the concave arcuate cutout. Therefore, clamping errors of the gas turbine blade can be effectively prevented, and rapid and correct clamping of the gas turbine blade is achieved.

Description

Technical Field

[0001] The utility model relates to the field of clamps, and more specifically to a clamp device used in processing gas turbine blades. Background Art

[0002] In the B2 wire cutting process of gas turbine blades, the gas turbine blades need to be clamped into a fixture to fix them. However, during this process, operators usually install the gas turbine blades upside down, resulting in the gas turbine blades being processed incorrectly and being discarded. Utility Model Content

[0003] In view of the status and shortcomings of the prior art, the purpose of the utility model is to provide a clamping device for use in gas turbine blade processing, which can effectively prevent clamping errors of gas turbine blades, achieve rapid and correct clamping of gas turbine blades, and improve clamping efficiency.

[0004] According to an embodiment of the utility model, a fixture device for use in gas turbine blade processing is provided, comprising: a base plate having a first end and an opposite second end and an upper surface and an opposite lower surface; a fixture body, arranged on the upper surface of the base plate near the first end and supported by the base plate, the fixture body having a clamping interface for the gas turbine blade; a groove, extending from the first end to the second end on the base plate near the bottom of the fixture body, the groove having a first depth extending from the upper surface of the base plate to the inside of the base plate, the first depth being less than the distance between the upper surface and the lower surface of the base plate; and an auxiliary fixture, inserted in the groove, having a polygonal shape with a concave arc cut, the concave arc cut having an arc matching the arc of the gas turbine blade, the concave arc cut facing the second end of the base plate, the end of the auxiliary fixture opposite to the concave arc cut and near the first end of the base plate being fixed to the fixture body, the gas turbine blade being mounted on the clamping interface so that the gas turbine blade matches the concave arc cut and there is a predetermined gap between the gas turbine blade and the concave arc cut.

[0005] By fixing an auxiliary fixture having a concave arc cutout whose arc matches the gas turbine blade on the fixture body, it is possible to effectively prevent the gas turbine blade from being clamped incorrectly, achieve rapid and correct clamping of the gas turbine blade, and improve clamping efficiency.

[0006] In the jig device used in gas turbine blade processing according to an embodiment of the present invention, the polygon is a quadrilateral.

[0007] Through the above manner, a specific shape of the auxiliary fixture is provided.

[0008] In a fixture device used in gas turbine blade processing according to an embodiment of the utility model, the fixture body comprises: a lower bottom surface, which contacts with the upper surface of the bottom plate and is supported by the bottom plate, the lower bottom surface having a first edge located at the first end, a second edge close to the groove, a third edge opposite to the second edge, and a fourth edge opposite to the first edge; an upper bottom surface, which is arranged opposite to the lower bottom surface; a first side surface, which is perpendicular to the bottom plate and extends from the lower bottom surface to the upper bottom surface on the first edge of the lower bottom surface; and a second side surface, which is perpendicular to the bottom plate and extends from the lower bottom surface to the upper bottom surface on the second edge of the lower bottom surface. A surface, wherein a first length of a junction line between the second side surface and the upper bottom surface is less than a second length of a junction line between the second side surface and the lower bottom surface; a third side surface, perpendicular to the bottom plate, extending from the lower bottom surface to the upper bottom surface on a third side of the lower bottom surface, wherein a third length of a junction line between the third side surface and the upper bottom surface is equal to the first length, and a fourth length of a junction line between the third side surface and the lower bottom surface is equal to the second length; and a fourth side surface, extending from the lower bottom surface to the upper bottom surface on a fourth side of the lower bottom surface at an angle formed by a predetermined angle with the lower bottom surface, wherein the clamping interface is on the fourth side surface.

[0009] Through the above method, a specific structure of the clamp body is provided.

[0010] In the clamp device used in gas turbine blade processing according to the embodiment of the utility model, it further includes: a pressing part, which is arranged on the upper bottom surface of the clamp body and can press the gas turbine blade onto the bottom plate from above.

[0011] By means of the above method, the gas turbine blades can be fixed more stably.

[0012] In a fixture device used in gas turbine blade processing according to an embodiment of the utility model, the auxiliary fixture further includes a mounting hole, which is arranged at the end of the auxiliary fixture opposite to the concave arc-shaped cutout and close to the first end of the base plate, and the fixture device further includes a fastener, which passes through the mounting hole to fix the end of the auxiliary fixture to the fixture body.

[0013] Through the above method, a method for fixing the auxiliary fixture to the clamp body is provided.

[0014] In the clamp device used in gas turbine blade processing according to an embodiment of the present invention, the fastener is a screw.

[0015] In the above manner, a specific example of a fastener is provided.

[0016] In the clamp device used in gas turbine blade processing according to an embodiment of the present utility model, the curvature of the concave arc-shaped cutout is the same as the curvature of the gas turbine blade.

[0017] Through the above method, a specific method for matching the gas turbine blade with the concave arc-shaped cutout is provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 3 is a schematic diagram showing a clamp device used in gas turbine blade processing according to an embodiment of the present invention.

[0020] Figure 2 is a schematic diagram showing auxiliary hardware used in gas turbine blade processing.

[0021] Figure 3 The schematic diagram shows how the clamp device used in the processing of gas turbine blades of the utility model prevents the clamping errors of the gas turbine blades.

[0022] The reference numerals are as follows:

[0023] 10: Fixture device used in gas turbine blade processing

[0024] 101: Base Plate

[0025] 103: Fixture body

[0026] 105: Groove

[0027] 107: Auxiliary firmware

[0028] 1011: First End

[0029] 1012: Second end

[0030] 1013: Upper surface

[0031] 1014: Lower surface

[0032] 1031: Lower bottom surface

[0033] 1032: Upper bottom surface

[0034] 1033: First side

[0035] 1034: Second side

[0036] 1035: The third side

[0037] 1036: The fourth side

[0038] L1, L2: Junction line

[0039] 1071: First side of auxiliary firmware

[0040] 1072: Second side of auxiliary firmware

[0041] A1: First position point

[0042] A2: Second position point

[0043] 109: Gas turbine blades

[0044] 1073: Concave arc cut

[0045] 1074: End

[0046] 1075: Mounting hole

[0047] 111: Clamping part. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0049] The utility model provides an auxiliary fixture used in the processing of gas turbine blades and a clamp device used in the processing of gas turbine blades. Figure 1 is a schematic diagram showing a fixture device used in gas turbine blade processing according to an embodiment of the utility model, Figure 2 Schematic diagram of auxiliary hardware used in gas turbine blade processing. Figure 1 and Figure 2 , the auxiliary hardware and the fixture device used in the processing of gas turbine blades according to the embodiment of the utility model are described in detail. Figure 1 In addition to the clamp device, a gas turbine blade is also shown.

[0050] like Figure 1 As shown, a fixture device 10 used in gas turbine blade processing according to an embodiment of the present invention may include a base plate 101 , a fixture body 103 , a groove 105 and an auxiliary fixture 107 .

[0051] The bottom plate 101 has a first end 1011 and an opposite second end 1012 , as well as an upper surface 1013 and an opposite lower surface 1014 .

[0052] The clamp body 103 is disposed on the upper surface 1013 of the bottom plate 101 near the first end 1011 and is supported by the bottom plate 101 .

[0053] The groove 105 extends from a first end 1011 to a second end 1012 on the bottom plate 101 near the bottom of the clamp body 103. The groove 105 has a first depth extending from the upper surface 1013 of the bottom plate 101 to the inside of the bottom plate 101, which is less than the distance between the upper surface 1013 and the lower surface 1014 of the bottom plate 101.

[0054] The clamp body 103 has a lower bottom surface 1031, an upper bottom surface 1032, a first side surface 1033, a second side surface 1034, a third side surface 1035 and a fourth side surface 1036, and the fourth side surface 1036 has a clamping interface for the gas turbine blade 109, and the gas turbine blade 109 can be clamped to the clamp body 103 through the clamping interface.

[0055] In the following, for the convenience of description, the side of the lower bottom surface 1031 located at the first end 1011 of the base plate 101 is defined as the first side of the lower bottom surface 1031, the side of the lower bottom surface 1031 close to the groove 105 is defined as the second side of the lower bottom surface 1031, the side of the lower bottom surface 1031 opposite to the second side is defined as the third side of the lower bottom surface 1031, and the side of the lower bottom surface 1031 opposite to the first side is defined as the fourth side of the lower bottom surface 1031.

[0056] The lower bottom surface 1031 contacts the upper surface 1013 of the bottom plate 101 and is supported by the bottom plate 101 . The upper bottom surface 1032 is disposed opposite to the lower bottom surface 1031 .

[0057] The first side surface 1033 is perpendicular to the bottom plate 101, and extends from the bottom surface 1031 to the upper bottom surface 1032 on the first side of the bottom surface 1031. The second side surface 1034 is perpendicular to the bottom plate 101, and extends from the bottom surface 1031 to the upper bottom surface 1032 on the second side of the bottom surface 1031, wherein the first length of the boundary line L1 between the second side surface 1034 and the upper bottom surface 1032 is less than the second length of the boundary line L2 between the second side surface 1034 and the bottom surface. That is, Figure 1 In the embodiment, the shape of the second side surface 1034 is a right-angled trapezoid, but the present invention is not limited thereto, and the second side surface 1034 can be set to other shapes as needed.

[0058] The third side surface 1035 is perpendicular to the bottom plate 101 and extends from the lower bottom surface 1031 to the upper bottom surface 1032 on the third side of the lower bottom surface 1031, wherein the third length of the boundary line between the third side surface 1035 and the upper bottom surface 1032 is equal to the first length, and the fourth length of the boundary line between the third side surface 1035 and the lower bottom surface 1033 is equal to the second length. Figure 1 In the embodiment, the third side surface 1035 and the second side surface 1033 are bilaterally symmetrical with respect to the fixture body 103 .

[0059] The fourth side surface 1036 extends from the lower bottom surface 1031 to the upper bottom surface 1032 on the fourth side of the lower bottom surface 1031 at a predetermined angle to the lower bottom surface 1031, that is, the fourth side surface 1036 is an inclined surface relative to the lower bottom surface 1031. The predetermined angle formed by the fourth side surface 1036 and the lower bottom surface 1031 can be set as needed. Although it is shown here that the fourth side surface 1036 is inclined relative to the lower bottom surface 1031, the utility model is not limited thereto, and the fourth side surface 1036 can also be perpendicular to the lower bottom surface 1031.

[0060] The auxiliary fixture 107 is inserted into the groove 105. For the sake of clarity, Figure 2 The auxiliary firmware 107 is shown separately in FIG.

[0061] The auxiliary fixture 107 has a polygonal shape with a concave arc cutout, and the polygonal shape may be a quadrilateral, for example, a rectangle, a square, and the like.

[0062] like Figure 1 and 2 As shown, for example, the auxiliary fixture 107 has a plate-like structure obtained by cutting off one corner from adjacent first and second sides 1071 and 1072 of a rectangular plate.

[0063] The auxiliary fixture 107 includes a concave arc-shaped cutout 1073 extending from a first position point A1 on the first side 1071 to a second position point A2 on the second side 1072. The curvature of the concave arc-shaped cutout 1073 matches the curvature of the gas turbine blade 109. Here, "curvature matching" means that the curvature of the concave arc-shaped cutout 1073 is the same or substantially the same as the curvature of the portion of the gas turbine blade 109 opposite to the concave arc-shaped cutout 1073.

[0064] like Figure 1 As shown, the concave arcuate cutout 1073 faces the second end 1012 of the bottom plate 101, and the end 1074 of the auxiliary fixture 107 opposite to the concave arcuate cutout 1073 and close to the first end 1011 of the bottom plate 101 is fixed to the clamp body 103. Specifically, the auxiliary fixture 107 further includes a mounting hole 1075. Figure 1 and Figure 2 As shown in the figure, two mounting holes 1075 are arranged at the end 1074 of the auxiliary fixture 107, but the present invention is not limited to this, and the number of mounting holes and their positions on the auxiliary fixture 107 can be set as needed.

[0065] The clamp device 10 used in gas turbine blade processing may further include a fastener (not shown in the drawings), such as a screw, which passes through the mounting hole 1075 to fix the end 1074 of the auxiliary fixture 107 to the clamp body.

[0066] like Figure 1As shown, when the gas turbine blade 109 is clamped to the fixture body 103 from the second end 1012 of the base plate 101 via the clamping interface, the gas turbine blade 109 matches the concave arc-shaped cutout 1073, and there is a predetermined gap between the gas turbine blade 109 and the concave arc-shaped cutout 1073. When the gas turbine blade 109 is clamped to the fixture body 103 from the second end 1012 of the base plate 101, a portion of the gas turbine blade 109 abuts against the fourth side surface 1036 of the fixture body 103.

[0067] The clamp device 10 used in gas turbine blade processing may further include a pressing portion 111 .

[0068] The pressing portion 111 is provided on the upper bottom surface 1032 of the clamp body 103, and can press the gas turbine blade 109 onto the bottom plate 101 from above. Figure 1 In the figure, the clamping portion 111 includes a rod-shaped structure, one end of which is fastened to the upper bottom surface 1032 of the clamp body 103 by a fastener, and the other end of the rod-shaped structure can rotate around the fastener in the upper bottom surface 1032 of the clamp body 103. When the other end of the rod-shaped structure rotates and presses above the gas turbine blade 109, the clamping portion 111 can press the gas turbine blade 109 onto the base plate 101.

[0069] According to the fixture device 10 used in gas turbine blade processing of the utility model, by fixing an auxiliary fixture having a concave arc cutout whose arc matches the gas turbine blade on the fixture body, it can effectively prevent the gas turbine blade from being clamped incorrectly.

[0070] Figure 3 The schematic diagram shows how the clamp device used in the processing of gas turbine blades of the utility model prevents the clamping errors of the gas turbine blades.

[0071] like Figure 3 As shown, if the gas turbine blade 109 is incorrectly clamped to the fixture 10, the concave arc cutout 1073 of the auxiliary fixture 107 will interfere with the clamping of the gas turbine blade 109 to the fixture 10, resulting in the gas turbine blade 109 being unable to be clamped to the fixture 10. Compared with the prior art in which the auxiliary fixture 107 is not provided, the fixture 10 used in the processing of gas turbine blades of the utility model can effectively prevent the clamping errors of the gas turbine blades, realize the rapid and correct clamping of the gas turbine blades, and improve the clamping efficiency.

[0072] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A fixture device (10) used in gas turbine blade processing, characterized in that: include: A bottom plate (101) having a first end (1011) and an opposite second end (1012) and an upper surface (1013) and an opposite lower surface (1014); a clamp body (103) arranged on the upper surface (1013) of the base plate (101) near the first end (1011) and supported by the base plate (101), the clamp body (103) having a clamping interface for the gas turbine blade (109); a groove (105) extending from the first end (1011) to the second end (1012) on the bottom plate (101) near the bottom of the clamp body (103), the groove (105) having a first depth extending from the upper surface (1013) of the bottom plate (101) to the interior of the bottom plate (101), the first depth being smaller than the distance between the upper surface (1013) and the lower surface (1014) of the bottom plate (101); as well as The auxiliary fixture (107) is inserted into the groove (105) and has a polygonal shape with a concave arc-shaped cutout (1073), wherein the concave arc-shaped cutout (1073) has a curvature matching the curvature of the gas turbine blade (109). The concave arc-shaped cutout (1073) faces the second end (1012) of the base plate (101), the end (1074) of the auxiliary fixture (107) opposite to the concave arc-shaped cutout (1073) and close to the first end (1011) of the base plate (101) is fixed to the fixture body (103), and the gas turbine blade (109) is mounted on the clamping interface so that the gas turbine blade (109) matches the concave arc-shaped cutout (1073) and a predetermined gap exists between the gas turbine blade (109) and the concave arc-shaped cutout (1073).

2. The fixture device (10) used in gas turbine blade processing according to claim 1, characterized in that: The polygonal shape is a quadrilateral.

3. The fixture device (10) used in gas turbine blade processing according to claim 2, characterized in that: The clamp body (103) comprises: a lower bottom surface (1031) in contact with the upper surface (1013) of the bottom plate (101) and supported by the bottom plate (101), the lower bottom surface (1031) having a first edge located at the first end (1011), a second edge close to the groove (105), a third edge opposite to the second edge, and a fourth edge opposite to the first edge; An upper bottom surface (1032) is arranged opposite to the lower bottom surface (1031); A first side surface (1033), perpendicular to the bottom plate (101), extending from the lower bottom surface (1031) to the upper bottom surface (1032) on the first edge of the lower bottom surface (1031); A second side surface (1034) is perpendicular to the bottom plate (101), and extends from the lower bottom surface (1031) to the upper bottom surface (1032) on the second edge of the lower bottom surface (1031), wherein a first length of a boundary line (L1) between the second side surface (1034) and the upper bottom surface (1032) is less than a second length of a boundary line (L2) between the second side surface (1034) and the lower bottom surface (1031); a third side surface (1035), which is perpendicular to the bottom plate (101) and extends from the lower bottom surface (1031) to the upper bottom surface (1032) on the third edge of the lower bottom surface (1031), wherein a third length of a boundary line between the third side surface (1035) and the upper bottom surface (1032) is equal to the first length, and a fourth length of a boundary line between the third side surface (1035) and the lower bottom surface (1031) is equal to the second length; and A fourth side surface (1036) extends from the lower bottom surface (1031) to the upper bottom surface (1032) on the fourth edge of the lower bottom surface (1031) at a predetermined angle to the lower bottom surface (1031), wherein the clamping interface is on the fourth side surface (1036).

4. The fixture device (10) used in gas turbine blade processing according to claim 3, characterized in that: Further including: The pressing portion (111) is arranged on the upper bottom surface (1032) of the clamp body (103) and is capable of pressing the gas turbine blade (109) onto the bottom plate (101) from above.

5. The clamping device (10) used in gas turbine blade processing according to any one of claims 1 to 4, characterized in that: The auxiliary fixture (107) further comprises a mounting hole (1075), wherein the mounting hole (1075) is arranged at an end (1074) of the auxiliary fixture (107) opposite to the concave arc-shaped cutout (1073) and close to the first end (1011) of the bottom plate (101). The clamp device (10) further comprises a fastener, which passes through the mounting hole (1075) to fix the end (1074) of the auxiliary fixture (107) to the clamp body (103).

6. The fixture device (10) used in gas turbine blade processing according to claim 5, characterized in that: The fastener is a screw.

7. A fixture device (10) for use in gas turbine blade processing according to any one of claims 1 to 4, characterized in that: The curvature of the concave arc-shaped cutout (1073) is the same as the curvature of the gas turbine blade (109).

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