A rotor part drilling inclined hole jig

Abstract

A rotor part drilling inclined hole clamp, comprising a base plate, which is provided with a support plate matched with the bottom structure of the rotor part; further comprising a expansion sleeve clamp assembly coaxially penetrating into the rotor part and connecting the rotor part with the base plate, the support plate leaving a space for the expansion sleeve clamp assembly to pass through; further comprising a plurality of clamping assemblies clamping the rotor part with the base plate along the circumference of the rotor part; further comprising a positioning assembly fixed on the base plate and in contact with the blade limiting any blade window, the support plate leaving a space for the positioning assembly to pass through. Through the reasonable setting of the part structure, the whole clamping process is convenient and fast, the inclined hole position is quickly positioned, the processing time and adjustment difficulty are greatly reduced, and the cost is reduced and the benefit is increased.

Description

Technical Field

[0001] This utility model belongs to the field of machining fixture technology, specifically relating to a fixture for drilling oblique holes in rotor parts. Background Technology

[0002] like Figure 1 As shown, the inclined hole in the rotor part does not pass through the center of rotation of the part. Currently, machining inclined holes that do not pass through the center of rotation in the workshop requires calculating the angle of the part's placement and the tool's path position during machining. This process is very tedious and prone to errors; once an error occurs, the part will be scrapped. It is time-consuming, inefficient, and costly. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this utility model is to provide a jig for drilling oblique holes in rotor parts, thereby solving the problems of cumbersome positioning process, long debugging time, low efficiency, and high cost in the machining of oblique holes in rotor parts.

[0004] To achieve the above objectives, the technical solution adopted by this utility model includes: A jig for drilling oblique holes in rotor parts, characterized in that it includes a base plate, on which a support plate matching the bottom structure of the rotor part is provided; it also includes an expansion sleeve jig assembly that coaxially inserts into the rotor part and secures the rotor part to the base plate, with space provided on the support plate for the expansion sleeve jig assembly to pass through; it also includes multiple clamping assemblies that clamp the rotor part to the base plate along the circumference of the rotor part; and it also includes a positioning assembly fixed on the base plate and in limiting contact with the blade where any blade window is located, with space provided on the support plate for the positioning assembly to pass through.

[0005] Preferably, the positioning component includes an anti-misalignment post fixed to the base plate, the extension end of the anti-misalignment post extending from the inside to the outside into the blade window, and a positioning pin fixed to the base plate, the extension end of the positioning pin making counterclockwise limiting contact with the outer side of the blade where the blade window is located.

[0006] Preferably, the anti-misalignment column includes a limiting platform fixed to the upper surface of the limiting platform base plate, and a limiting column that passes vertically through and is fixed to the limiting platform. The lower end of the limiting column is limited and fixed inside the base plate, and the upper end of the limiting column passes through the blade window from the inside to the outside.

[0007] Preferably, one side of the base plate is also provided with a aligning hole, the axis of which is parallel to the axis of the inclined hole to be processed.

[0008] Preferably, the expansion sleeve clamp assembly includes a threaded sleeve coaxial with the rotor part and threadedly connected to the base plate, a tapered body coaxially provided above the threaded sleeve, the upper end of the tapered body extending out of the center hole of the rotor part from the inside to the outside; it also includes an expansion sleeve fastened from top to bottom to the upper end of the tapered body, the outer periphery of the expansion sleeve matching the structure of the center hole of the rotor part; and a pull rod coaxially inserted into the expansion sleeve, the tapered body and the threaded sleeve from top to bottom and threadedly connected to the threaded sleeve, the upper part of the pull rod making limiting contact with the upper port of the expansion sleeve.

[0009] Preferably, a gasket is provided between the upper part of the pull rod and the upper port of the expansion sleeve.

[0010] Preferably, the clamping assembly includes a support column fixed on the base plate, a double-ended stud provided on the base plate between the support column and the rotor part, a pressure plate passing through the non-end of the double-ended stud, a compression spring sleeved on the outer periphery of the double-ended stud between the pressure plate and the base plate, and a nut threadedly connected to the outer periphery of the double-ended stud above the pressure plate, which is in contact with the upper limit of the pressure plate; the lower part near both ends of the pressure plate is in contact with the upper limit of the rotor part and the support column, respectively.

[0011] Preferably, three clamping assemblies are evenly distributed along the circumference of the rotor parts.

[0012] Preferably, the axis of the support column and the axis of the double-ended stud are both parallel to the axis of the rotor parts.

[0013] Preferably, when using the fixture, the base plate is mounted on the machine tool, the mounting surface of the machine tool and the base plate is provided with multiple positioning grooves, the mounting surface of the base plate and the machine tool is provided with multiple positioning holes corresponding to the multiple positioning grooves, and a positioning component is provided in any positioning groove and its corresponding positioning hole.

[0014] Compared with the prior art, the advantages of this utility model are: (1) The present invention provides a rotor part drilling oblique hole fixture. Through the reasonable setting of the component structure, the whole clamping process is convenient and quick, the oblique hole position is quickly located, the processing time and adjustment difficulty are greatly reduced, and the cost is reduced and efficiency is increased.

[0015] (2) The present invention provides a rotor part drilling oblique hole fixture. Through the reasonable setting of the component structure, the machine tool raises the fixture as a whole and rotates it until the cutting tool for drilling the oblique hole coincides with the axis of the oblique hole to be processed. Then, the machine tool probe and the alignment hole are used to achieve the alignment of the fixture, that is, secondary positioning, so as to ensure that the cutting tool for drilling the oblique hole and the axis of the oblique hole to be processed are completely coincident. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1This is a schematic diagram of the structure of the rotor part drilling oblique hole fixture of this utility model; Figure 2 for Figure 1 Top view; Figure 3 for Figure 2 Schematic diagram of section AA; Figure 4 for Figure 2 Schematic diagram of the structure at section BB; Figure 5 for Figure 2 Schematic diagram of the CC section; Figure 6 A schematic diagram of the structure of the blade surface of a rotor component; Figure 7 This is a diagram showing the rotation angle of the machine tool in the embodiment; Figure 8 for Figure 4 A schematic diagram of the structure of the anti-misalignment column.

[0017] The labels in the diagram represent: 0-Rotor parts, 01-Blade, 02-Blade window, 03-Inclined hole, 1-Support plate, 2-Expansion sleeve, 3-Tapered body, 4-Tie rod, 5-Washer, 6-Pressure plate, 7-Nut, 8-Clamping assembly, 9-Support column, 10-Compression spring, 11-Double-ended stud, 12-Base plate, 13-Expansion sleeve clamp assembly, 14-Alignment hole, 15-Threaded sleeve, 16-Cylindrical head screw, 17-Locating key, 18-Fixing screw, 19-Anti-misalignment column, 19-1 Limiting platform, 19-2 Limiting column, 19-3 Threaded hole, 20-Locating pin, 21-Locating component. Detailed Implementation

[0018] The utility model is not limited to the following specific embodiments. All equivalent modifications made based on the technical solution of this application fall within the protection scope of this utility model.

[0019] It should be noted that the directional terms mentioned herein are consistent with the specific directions on the paper in the accompanying drawings or the corresponding directions of the space shown in the drawings; all components and devices in this utility model, unless otherwise specified, are components and devices known in the prior art.

[0020] Example This embodiment discloses a jig for drilling oblique holes in rotor parts, including a base plate 12, on which a support plate 1 matching the bottom structure of the rotor part 0 is provided; it also includes an expansion sleeve jig assembly 13 that coaxially inserts into the rotor part 0 and connects the rotor part 0 to the base plate 12, with space provided on the support plate 1 for the expansion sleeve jig assembly 13 to pass through; it also includes a plurality of clamping assemblies 8 that clamp the rotor part 0 to the base plate 12 along the circumference of the rotor part 0; and it also includes a positioning assembly that is fixed on the base plate 12 and makes limiting contact with the blade 01 where any blade window 02 is located, with space provided on the support plate 1 for the positioning assembly to pass through; Its function is as follows: The support plate 1 is used to limit and support the rotor part 0 on the upper surface of the base plate 12. When in use, the base plate 12 is installed on the machine tool, and the support plate 1 is fixed on the upper surface of the base plate 12. When placing the rotor part 0, the rotor part 0 is first placed on the support plate 1 with the blade face down. At this time, the positioning component is in limited contact with the blade 01 where any blade window 02 is located. Then, the rotor part 0 is fixed on the base plate 12 along the central axis by the expansion sleeve clamping assembly 13. Finally, each clamping assembly 8 is tightened to clamp the rotor part 0. The rotor part 0 is clamped. At this time, the machine tool raises the entire clamp and rotates it until the tool for machining the inclined hole is aligned with the axis of the inclined hole to be machined. The machining of the first inclined hole can be completed. After the first inclined hole is machined, the machine tool is directly rotated to rotate the rotor part 0 by 30° to machine the second inclined hole. The rotation and machining are repeated until all 6 inclined holes are machined. The whole clamping process is convenient and fast, and the inclined hole position is quickly positioned, which greatly reduces the machining time and adjustment difficulty, and reduces costs and increases efficiency.

[0021] like Figure 7 As shown, in this embodiment, the fixture is raised by 74.1° by a machine tool and then rotated 13.2° clockwise.

[0022] The positioning component of this embodiment includes an anti-misalignment post 19 fixed on the base plate 12, the extension end of the anti-misalignment post 19 extending from the inside to the outside into the blade window 02, and a positioning pin 20 fixed on the base plate 12, the extension end of the positioning pin 20 making counterclockwise limiting contact with the outer side of the blade 01 where the blade window 02 is located; when placing the rotor part 0, first place the rotor part 0 with the blade surface facing down on the support plate 1, at this time the extension end of the anti-misalignment post 19 extends from the inside to the outside into the blade window 02, and then slightly rotate the rotor part 0 until the extension end of the positioning pin 20 makes counterclockwise limiting contact with the outer side of the blade 01 where the blade window 02 is located, so that the positioning is completed.

[0023] like Figure 8As shown, the anti-misalignment post 19 in this embodiment includes a limiting platform 19-1 that is limited to the upper surface of the base plate 12 of the limiting platform 19-1, and a limiting post 19-2 that is perpendicularly passed through and fixed to the limiting platform 19-1. The lower end of the limiting post 19-2 is limited and fixed inside the base plate 12, and the upper end of the limiting post 19-2 passes through the blade window 02 from the inside to the outside. The limiting platform 19-1 is provided with two threaded holes 19-3, and the anti-misalignment post 19 is limited and fixed to the upper surface of the base plate 12 by means of fixing screws 18 passing through the threaded holes 19-3. The upper end of the limiting post 19-2 is provided with a chamfer to facilitate the insertion of the limiting post 19-2 into the blade window 02 from the inside to the outside, and a gap is left between the chamfered surface and the blade 01 to avoid wear on the blade 01.

[0024] Its function is as follows: the machine tool raises the entire fixture and rotates it until the cutting tool for machining the inclined hole coincides with the axis of the inclined hole to be machined. Then, the machine tool probe cooperates with the alignment hole 14 to achieve the alignment of the fixture, that is, secondary positioning, so as to ensure that the cutting tool for machining the inclined hole is completely aligned with the axis of the inclined hole to be machined.

[0025] The expansion sleeve clamp assembly 13 of this embodiment includes a threaded sleeve 15 coaxial with the rotor part 0 and threadedly connected to the base plate 12. A tapered body 3 is coaxially provided above the threaded sleeve 15, and the upper end of the tapered body 3 extends outward from the center hole of the rotor part 0. It also includes an expansion sleeve 2 fastened from top to bottom to the upper end of the tapered body 3, and the outer periphery of the expansion sleeve 2 matches the structure of the center hole of the rotor part 0. It also includes a pull rod 4 that is coaxially inserted into the expansion sleeve 2, the tapered body 3 and the threaded sleeve 15 from top to bottom and threadedly connected to the threaded sleeve 15. The upper part of the pull rod 4 makes limiting contact with the upper port of the expansion sleeve 2. A washer 5 is also provided between the upper part of the pull rod 4 and the upper port of the expansion sleeve 2. In use, by tightening the pull rod 4, the expansion sleeve 2 fixes the center axis of the rotor part 0.

[0026] The clamping assembly 8 in this embodiment includes a support column 9 fixed on a base plate 12. A double-ended stud 11 is provided on the base plate 12 between the support column 9 and the rotor part 0. A pressure plate 6 passes through the non-end of the double-ended stud 11. A compression spring 10 is sleeved on the outer periphery of the double-ended stud 11 between the pressure plate 6 and the base plate 12. A nut 7 is threadedly connected to the outer periphery of the double-ended stud 11 above the pressure plate 6 and makes a limiting contact with the upper part of the pressure plate 6. The lower part near both ends of the pressure plate 6 makes limiting contact with the upper end of the rotor part 0 and the support column 9, respectively. In use, first turn the nut 7 upward. Under the force of the compression spring 10 returning to its original position, the pressure plate 6 is pushed upward to loosen and rotate to leave space for the rotor part 0. When the rotor part 0 needs to be clamped, rotate the pressure plate 6 so that it is directly above the rotor part 0 and the support column 9, turn the nut 7 downward, and the pressure plate 6 makes limiting contact with the upper end of the rotor part 0 and the support column 9 to achieve clamping of the rotor part 0.

[0027] In this embodiment, three clamping assemblies 8 are evenly distributed along the circumference of the rotor part 0, and the axes of the support column 9 and the double-ended stud 11 are parallel to the axis of the rotor part 0. This makes the clamping force on the rotor part 0 more balanced.

[0028] In this embodiment, the fixture is used by mounting the base plate 12 on the machine tool. The mounting surface of the machine tool and the base plate 12 is provided with multiple positioning grooves. The mounting surface of the base plate 12 and the machine tool is provided with multiple positioning holes that correspond to the multiple positioning grooves. A positioning component is provided in any positioning groove and its corresponding positioning hole.

[0029] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0030] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0031] Furthermore, the various implementation methods disclosed in this solution can be combined arbitrarily, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content invented by this disclosure.

Claims

1. A rotor part drilling and tapping jig characterized by, It includes a base plate (12), on which a support plate (1) matching the bottom structure of the rotor part (0) is provided; it also includes an expansion sleeve clamp assembly (13) that coaxially inserts into the rotor part (0) and connects the rotor part (0) to the base plate (12), and the support plate (1) has space for the expansion sleeve clamp assembly (13) to pass through; it also includes multiple clamping assemblies (8) that clamp the rotor part (0) to the base plate (12) along the circumference of the rotor part (0). It also includes a positioning component fixed on the base plate (12) and in limiting contact with the blade (01) where any blade window (02) is located, and the support plate (1) has space for the positioning component to pass through.

2. The rotor part drilling and tapping jig according to claim 1, wherein The positioning component includes an anti-misalignment post (19) fixed on the base plate (12), the extension end of which extends from the inside to the outside into the blade window (02), and a positioning pin (20) fixed on the base plate (12), the extension end of which makes counterclockwise limiting contact with the outer side of the blade (01) where the blade window (02) is located.

3. The rotor part drilling and tapping jig of claim 2 wherein, The anti-misalignment column (19) includes a limiting platform (19-1) fixed on the upper surface of the base plate (12) of the limiting platform (19-1), and a limiting column (19-2) that passes vertically through and is fixed on the limiting platform (19-1). The lower end of the limiting column (19-2) is limited to being inserted into and fixed in the base plate (12), and the upper end of the limiting column (19-2) is inserted into the blade window (02) from the inside to the outside.

4. The rotor part drilling and tapping jig of claim 3 wherein, The bottom plate (12) is also provided with a aligning hole (14) on one side, and the axis of the aligning hole (14) is parallel to the axis of the inclined hole (03) to be processed.

5. A rotor part drill jig according to any one of claims 1 to 4, wherein The expansion sleeve clamp assembly (13) includes a threaded sleeve (15) that is coaxial with the rotor part (0) and threadedly connected to the base plate (12). A tapered body (3) is coaxially provided above the threaded sleeve (15), and the upper end of the tapered body (3) passes through the center hole of the rotor part (0) from the inside to the outside. It also includes an expansion sleeve (2) that is fastened to the upper end of the tapered body (3) from top to bottom. The outer periphery of the expansion sleeve (2) matches the structure of the center hole of the rotor part (0). It also includes a pull rod (4) that is coaxially inserted into the expansion sleeve (2), the tapered body (3) and the threaded sleeve (15) from top to bottom and threadedly connected to the threaded sleeve (15). The upper part of the pull rod (4) is in limiting contact with the upper port of the expansion sleeve (2).

6. The rotor part drilling and tapping fixture of claim 5 wherein, A gasket (5) is also provided between the upper part of the pull rod (4) and the upper port of the expansion sleeve (2).

7. A rotor part drill jig according to any one of claims 1 to 4, wherein The clamping assembly (8) includes a support column (9) fixed on the base plate (12), a double-ended stud (11) is provided on the base plate (12) between the support column (9) and the rotor part (0), a pressure plate (6) is passed through the non-end of the double-ended stud (11), a compression spring (10) is sleeved on the outer periphery of the double-ended stud (11) between the pressure plate (6) and the base plate (12), and a nut (7) that is in contact with the upper limit of the pressure plate (6) is threaded on the outer periphery of the double-ended stud (11) above the pressure plate (6). The lower parts near both ends of the pressure plate (6) make contact with the upper limit of the rotor part (0) and the support column (9), respectively.

8. The rotor part drilling and tapping fixture of claim 7 wherein, Three clamping assemblies (8) are evenly arranged along the circumference of the rotor part (0).

9. The rotor part drilling and tapping fixture of claim 8 wherein, The axis of the support column (9) and the axis of the double-headed stud (11) are both parallel to the axis of the rotor part (0).

10. The rotor part drilling jig according to any one of claims 1 to 4, wherein When the fixture is used, the base plate (12) is installed on the machine tool. The mounting surface of the machine tool and the base plate (12) is provided with multiple positioning grooves. The mounting surface of the base plate (12) and the machine tool is provided with multiple positioning holes corresponding to the multiple positioning grooves. Each positioning groove and the corresponding positioning hole is provided with a positioning component.

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